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Home Return to list Flash Flood Watch 0007 Issued by the Great Falls Forecast Office
Action: New Issued At: 2026-09-17 11:18:45
500
WGUS65 KTFX 171618
FFATFX
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Great Falls MT
1018 AM MDT Thu Sep 17 2026
MTZ327-328-181200-
/O.NEW.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-Beaverhead and Western Madison below
6000ft-
Including the cities of Chief Joseph Pass, Glen, Wise River, Wisdom,
Dewey, Big Hole Pass, Waterloo, Dillon, and Bannack
1018 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Sand Creek and Bobcat Lakes Burn Scars.
* WHERE...A portion of southwest Montana, including the following
areas, Beaverhead and Western Madison below 6000ft and Northwest
Beaverhead County.
* WHEN...From Friday afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Sand Creek and Bobcat Lakes Burn
Scars is expected up to and during the period of the watch.
Residents near the Sand Creek and Bobcat Lakes Burn Scars should
prepare for potential debris flow. Be sure to stay up to date with
information from local authorities. Heavy rainfall could trigger
flash flooding of low-lying areas, urbanized street flooding, and
debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the burn scar, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ310-312-313-315>317-320>324-326-181200-
/O.NEW.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western and Central Chouteau County-Cascade County below 5000ft-
Judith Basin County and Judith Gap-Upper Blackfoot and MacDonald
Pass-Gates of the Mountains-Little Belt and Highwood Mountains-
Big Belt, Bridger and Castle Mountains-Meagher County Valleys-
Elkhorn and Boulder Mountains-Canyon Ferry Area-Missouri
Headwaters-Gallatin Valley-
Including the cities of Corbin, Wickes, Craig, Lincoln, Boulder,
Whitehall, Neihart, Marysville, Trident, Three Forks, Windham, Elk
Park Pass, Checkerboard, Great Falls, Floweree, Geyser, Townsend,
Clancy, Carter, Flesher Pass, Raynesford, Kings Hill Pass, Monarch,
Moccasin, Stanford, Deep Creek Pass, Benchland, Harrison, Bozeman
Pass, Fort Benton, Bozeman, White Sulphur Springs, Canyon Creek,
Montana City, Pony, Wolf Creek, Homestake Pass, Maudlow, Ringling,
Toston, Winston, Willow Creek, Hobson, MacDonald Pass, Gallatin
Gateway, Martinsdale, and Battle Ridge Pass
1018 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026 IN
EFFECT FROM FRIDAY EVENING THROUGH SATURDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...Portions of central, north central, and southwest Montana,
including the following areas, in central Montana, Big Belt,
Bridger and Castle Mountains, Canyon Ferry Area, Elkhorn and
Boulder Mountains, Gates of the Mountains, Little Belt and Highwood
Mountains, Meagher County Valleys and Upper Blackfoot and MacDonald
Pass. In north central Montana, Cascade County below 5000ft, Judith
Basin County and Judith Gap and Western and Central Chouteau
County. In southwest Montana, Gallatin Valley and Missouri
Headwaters.
* WHEN...From Friday evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Moldan
Action: New Issued At: 2026-09-17 11:18:45
500
WGUS65 KTFX 171618
FFATFX
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Great Falls MT
1018 AM MDT Thu Sep 17 2026
MTZ327-328-181200-
/O.NEW.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-Beaverhead and Western Madison below
6000ft-
Including the cities of Chief Joseph Pass, Glen, Wise River, Wisdom,
Dewey, Big Hole Pass, Waterloo, Dillon, and Bannack
1018 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Sand Creek and Bobcat Lakes Burn Scars.
* WHERE...A portion of southwest Montana, including the following
areas, Beaverhead and Western Madison below 6000ft and Northwest
Beaverhead County.
* WHEN...From Friday afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Sand Creek and Bobcat Lakes Burn
Scars is expected up to and during the period of the watch.
Residents near the Sand Creek and Bobcat Lakes Burn Scars should
prepare for potential debris flow. Be sure to stay up to date with
information from local authorities. Heavy rainfall could trigger
flash flooding of low-lying areas, urbanized street flooding, and
debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the burn scar, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ310-312-313-315>317-320>324-326-181200-
/O.NEW.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western and Central Chouteau County-Cascade County below 5000ft-
Judith Basin County and Judith Gap-Upper Blackfoot and MacDonald
Pass-Gates of the Mountains-Little Belt and Highwood Mountains-
Big Belt, Bridger and Castle Mountains-Meagher County Valleys-
Elkhorn and Boulder Mountains-Canyon Ferry Area-Missouri
Headwaters-Gallatin Valley-
Including the cities of Corbin, Wickes, Craig, Lincoln, Boulder,
Whitehall, Neihart, Marysville, Trident, Three Forks, Windham, Elk
Park Pass, Checkerboard, Great Falls, Floweree, Geyser, Townsend,
Clancy, Carter, Flesher Pass, Raynesford, Kings Hill Pass, Monarch,
Moccasin, Stanford, Deep Creek Pass, Benchland, Harrison, Bozeman
Pass, Fort Benton, Bozeman, White Sulphur Springs, Canyon Creek,
Montana City, Pony, Wolf Creek, Homestake Pass, Maudlow, Ringling,
Toston, Winston, Willow Creek, Hobson, MacDonald Pass, Gallatin
Gateway, Martinsdale, and Battle Ridge Pass
1018 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026 IN
EFFECT FROM FRIDAY EVENING THROUGH SATURDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...Portions of central, north central, and southwest Montana,
including the following areas, in central Montana, Big Belt,
Bridger and Castle Mountains, Canyon Ferry Area, Elkhorn and
Boulder Mountains, Gates of the Mountains, Little Belt and Highwood
Mountains, Meagher County Valleys and Upper Blackfoot and MacDonald
Pass. In north central Montana, Cascade County below 5000ft, Judith
Basin County and Judith Gap and Western and Central Chouteau
County. In southwest Montana, Gallatin Valley and Missouri
Headwaters.
* WHEN...From Friday evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Moldan
Action: Cancelled Issued At: 2026-09-17 12:11:46
725
WGUS65 KTFX 171711
FFATFX
Flood Watch
National Weather Service Great Falls MT
1111 AM MDT Thu Sep 17 2026
MTZ328-171815-
/O.CAN.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Beaverhead and Western Madison below 6000ft-
Including the cities of Glen, Dillon, Bannack, and Waterloo
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR BEAVERHEAD AND WESTERN MADISON BELOW 6000F
IS CORRECTED...
The areal coverage of the Flash Flood Watch has been corrected.
$$
MTZ310-312-313-315-316-321-323-324-171815-
/O.CAN.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western and Central Chouteau County-Cascade County below 5000ft-
Judith Basin County and Judith Gap-Upper Blackfoot and MacDonald
Pass-Gates of the Mountains-Meagher County Valleys-Canyon Ferry
Area-Missouri Headwaters-
Including the cities of Craig, Lincoln, Whitehall, Marysville, Three
Forks, Windham, Checkerboard, Great Falls, Floweree, Geyser,
Townsend, Carter, Flesher Pass, Raynesford, Moccasin, Stanford,
Benchland, Harrison, Fort Benton, White Sulphur Springs, Canyon
Creek, Pony, Wolf Creek, Winston, Ringling, Toston, Willow Creek,
Hobson, MacDonald Pass, and Martinsdale
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND NORTH CENTRAL
MONTANA IS CORRECTED...
The areal coverage of the Flash Flood Watch has been corrected.
$$
MTZ327-181200-
/O.CON.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Chief Joseph Pass, Wise River, Wisdom, Dewey,
and Big Hole Pass
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...From Friday afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the burn scar, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ317-320-322-326-181200-
/O.CON.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-Gallatin Valley-
Including the cities of Corbin, Wickes, Montana City, Elk Park Pass,
Boulder, Homestake Pass, Maudlow, Gallatin Gateway, Deep Creek Pass,
Clancy, Neihart, Kings Hill Pass, Trident, Bozeman, Bozeman Pass,
Battle Ridge Pass, and Monarch
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...Portions of central and southwest Montana, including the
following areas, in central Montana, Big Belt, Bridger and Castle
Mountains, Elkhorn and Boulder Mountains and Little Belt and
Highwood Mountains. In southwest Montana, Gallatin Valley.
* WHEN...From Friday evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Moldan
Action: Continued Issued At: 2026-09-17 12:11:46
725
WGUS65 KTFX 171711
FFATFX
Flood Watch
National Weather Service Great Falls MT
1111 AM MDT Thu Sep 17 2026
MTZ328-171815-
/O.CAN.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Beaverhead and Western Madison below 6000ft-
Including the cities of Glen, Dillon, Bannack, and Waterloo
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR BEAVERHEAD AND WESTERN MADISON BELOW 6000F
IS CORRECTED...
The areal coverage of the Flash Flood Watch has been corrected.
$$
MTZ310-312-313-315-316-321-323-324-171815-
/O.CAN.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western and Central Chouteau County-Cascade County below 5000ft-
Judith Basin County and Judith Gap-Upper Blackfoot and MacDonald
Pass-Gates of the Mountains-Meagher County Valleys-Canyon Ferry
Area-Missouri Headwaters-
Including the cities of Craig, Lincoln, Whitehall, Marysville, Three
Forks, Windham, Checkerboard, Great Falls, Floweree, Geyser,
Townsend, Carter, Flesher Pass, Raynesford, Moccasin, Stanford,
Benchland, Harrison, Fort Benton, White Sulphur Springs, Canyon
Creek, Pony, Wolf Creek, Winston, Ringling, Toston, Willow Creek,
Hobson, MacDonald Pass, and Martinsdale
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND NORTH CENTRAL
MONTANA IS CORRECTED...
The areal coverage of the Flash Flood Watch has been corrected.
$$
MTZ327-181200-
/O.CON.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Chief Joseph Pass, Wise River, Wisdom, Dewey,
and Big Hole Pass
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...From Friday afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the burn scar, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ317-320-322-326-181200-
/O.CON.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-Gallatin Valley-
Including the cities of Corbin, Wickes, Montana City, Elk Park Pass,
Boulder, Homestake Pass, Maudlow, Gallatin Gateway, Deep Creek Pass,
Clancy, Neihart, Kings Hill Pass, Trident, Bozeman, Bozeman Pass,
Battle Ridge Pass, and Monarch
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...Portions of central and southwest Montana, including the
following areas, in central Montana, Big Belt, Bridger and Castle
Mountains, Elkhorn and Boulder Mountains and Little Belt and
Highwood Mountains. In southwest Montana, Gallatin Valley.
* WHEN...From Friday evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Moldan
Action: Continued Issued At: 2026-09-17 12:11:46
725
WGUS65 KTFX 171711
FFATFX
Flood Watch
National Weather Service Great Falls MT
1111 AM MDT Thu Sep 17 2026
MTZ328-171815-
/O.CAN.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Beaverhead and Western Madison below 6000ft-
Including the cities of Glen, Dillon, Bannack, and Waterloo
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR BEAVERHEAD AND WESTERN MADISON BELOW 6000F
IS CORRECTED...
The areal coverage of the Flash Flood Watch has been corrected.
$$
MTZ310-312-313-315-316-321-323-324-171815-
/O.CAN.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western and Central Chouteau County-Cascade County below 5000ft-
Judith Basin County and Judith Gap-Upper Blackfoot and MacDonald
Pass-Gates of the Mountains-Meagher County Valleys-Canyon Ferry
Area-Missouri Headwaters-
Including the cities of Craig, Lincoln, Whitehall, Marysville, Three
Forks, Windham, Checkerboard, Great Falls, Floweree, Geyser,
Townsend, Carter, Flesher Pass, Raynesford, Moccasin, Stanford,
Benchland, Harrison, Fort Benton, White Sulphur Springs, Canyon
Creek, Pony, Wolf Creek, Winston, Ringling, Toston, Willow Creek,
Hobson, MacDonald Pass, and Martinsdale
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND NORTH CENTRAL
MONTANA IS CORRECTED...
The areal coverage of the Flash Flood Watch has been corrected.
$$
MTZ327-181200-
/O.CON.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Chief Joseph Pass, Wise River, Wisdom, Dewey,
and Big Hole Pass
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...From Friday afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the burn scar, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ317-320-322-326-181200-
/O.CON.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-Gallatin Valley-
Including the cities of Corbin, Wickes, Montana City, Elk Park Pass,
Boulder, Homestake Pass, Maudlow, Gallatin Gateway, Deep Creek Pass,
Clancy, Neihart, Kings Hill Pass, Trident, Bozeman, Bozeman Pass,
Battle Ridge Pass, and Monarch
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...Portions of central and southwest Montana, including the
following areas, in central Montana, Big Belt, Bridger and Castle
Mountains, Elkhorn and Boulder Mountains and Little Belt and
Highwood Mountains. In southwest Montana, Gallatin Valley.
* WHEN...From Friday evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Moldan
Action: Cancelled Issued At: 2026-09-17 12:11:46
725
WGUS65 KTFX 171711
FFATFX
Flood Watch
National Weather Service Great Falls MT
1111 AM MDT Thu Sep 17 2026
MTZ328-171815-
/O.CAN.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Beaverhead and Western Madison below 6000ft-
Including the cities of Glen, Dillon, Bannack, and Waterloo
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR BEAVERHEAD AND WESTERN MADISON BELOW 6000F
IS CORRECTED...
The areal coverage of the Flash Flood Watch has been corrected.
$$
MTZ310-312-313-315-316-321-323-324-171815-
/O.CAN.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western and Central Chouteau County-Cascade County below 5000ft-
Judith Basin County and Judith Gap-Upper Blackfoot and MacDonald
Pass-Gates of the Mountains-Meagher County Valleys-Canyon Ferry
Area-Missouri Headwaters-
Including the cities of Craig, Lincoln, Whitehall, Marysville, Three
Forks, Windham, Checkerboard, Great Falls, Floweree, Geyser,
Townsend, Carter, Flesher Pass, Raynesford, Moccasin, Stanford,
Benchland, Harrison, Fort Benton, White Sulphur Springs, Canyon
Creek, Pony, Wolf Creek, Winston, Ringling, Toston, Willow Creek,
Hobson, MacDonald Pass, and Martinsdale
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND NORTH CENTRAL
MONTANA IS CORRECTED...
The areal coverage of the Flash Flood Watch has been corrected.
$$
MTZ327-181200-
/O.CON.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Chief Joseph Pass, Wise River, Wisdom, Dewey,
and Big Hole Pass
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...From Friday afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the burn scar, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ317-320-322-326-181200-
/O.CON.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-Gallatin Valley-
Including the cities of Corbin, Wickes, Montana City, Elk Park Pass,
Boulder, Homestake Pass, Maudlow, Gallatin Gateway, Deep Creek Pass,
Clancy, Neihart, Kings Hill Pass, Trident, Bozeman, Bozeman Pass,
Battle Ridge Pass, and Monarch
1111 AM MDT Thu Sep 17 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...Portions of central and southwest Montana, including the
following areas, in central Montana, Big Belt, Bridger and Castle
Mountains, Elkhorn and Boulder Mountains and Little Belt and
Highwood Mountains. In southwest Montana, Gallatin Valley.
* WHEN...From Friday evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Moldan
Action: Continued Issued At: 2026-09-18 04:21:34
883
WGUS65 KTFX 180921
FFATFX
Flood Watch
National Weather Service Great Falls MT
321 AM MDT Fri Sep 18 2026
MTZ327-182115-
/O.CON.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Wise River, Big Hole Pass, Wisdom, Chief
Joseph Pass, and Dewey
321 AM MDT Fri Sep 18 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT FROM 3 PM MDT THIS AFTERNOON THROUGH SATURDAY
AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Sand Creek and Bobcat Lakes Burn
Scars.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...From 3 PM MDT this afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Sand Creek and Bobcat Lakes Burn
Scars is expected up to and during the period of the watch.
Residents near the Sand Creek and Bobcat Lakes Burn Scars should
prepare for potential debris flow. Be sure to stay up to date with
information from local authorities. Heavy rainfall could trigger
flash flooding of low-lying areas, urbanized street flooding, and
debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing locally intense
rainfall are forecast to develop over the burn scar late this
afternoon through this evening with additional precipitation
expected through Saturday, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars, including
portions of the Pioneer Mountains Scenic Byway.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ317-320-322-326-182115-
/O.CON.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-Gallatin Valley-
Including the cities of Battle Ridge Pass, Monarch, Elk Park Pass,
Deep Creek Pass, Corbin, Trident, Bozeman, Maudlow, Boulder, Wickes,
Gallatin Gateway, Montana City, Bozeman Pass, Homestake Pass, Kings
Hill Pass, Neihart, and Clancy
321 AM MDT Fri Sep 18 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT FROM THIS EVENING THROUGH SATURDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...Portions of central and southwest Montana, including the
following areas, in central Montana, Big Belt, Bridger and Castle
Mountains, Elkhorn and Boulder Mountains and Little Belt and
Highwood Mountains. In southwest Montana, Gallatin Valley.
* WHEN...From this evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
BH
Action: Continued Issued At: 2026-09-18 04:21:34
883
WGUS65 KTFX 180921
FFATFX
Flood Watch
National Weather Service Great Falls MT
321 AM MDT Fri Sep 18 2026
MTZ327-182115-
/O.CON.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Wise River, Big Hole Pass, Wisdom, Chief
Joseph Pass, and Dewey
321 AM MDT Fri Sep 18 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT FROM 3 PM MDT THIS AFTERNOON THROUGH SATURDAY
AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Sand Creek and Bobcat Lakes Burn
Scars.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...From 3 PM MDT this afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Sand Creek and Bobcat Lakes Burn
Scars is expected up to and during the period of the watch.
Residents near the Sand Creek and Bobcat Lakes Burn Scars should
prepare for potential debris flow. Be sure to stay up to date with
information from local authorities. Heavy rainfall could trigger
flash flooding of low-lying areas, urbanized street flooding, and
debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing locally intense
rainfall are forecast to develop over the burn scar late this
afternoon through this evening with additional precipitation
expected through Saturday, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars, including
portions of the Pioneer Mountains Scenic Byway.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ317-320-322-326-182115-
/O.CON.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-Gallatin Valley-
Including the cities of Battle Ridge Pass, Monarch, Elk Park Pass,
Deep Creek Pass, Corbin, Trident, Bozeman, Maudlow, Boulder, Wickes,
Gallatin Gateway, Montana City, Bozeman Pass, Homestake Pass, Kings
Hill Pass, Neihart, and Clancy
321 AM MDT Fri Sep 18 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT FROM THIS EVENING THROUGH SATURDAY EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...Portions of central and southwest Montana, including the
following areas, in central Montana, Big Belt, Bridger and Castle
Mountains, Elkhorn and Boulder Mountains and Little Belt and
Highwood Mountains. In southwest Montana, Gallatin Valley.
* WHEN...From this evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch and Burn Scars of
2026 is expected up to and during the period of the watch.
Residents near he Horse Gulch area and burn scars from the summer
of 2026 should prepare for potential debris flow. Be sure to stay
up to date with information from local authorities. Heavy rainfall
could trigger flash flooding of low-lying areas, urbanized street
flooding, and debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
BH
Action: Cancelled Issued At: 2026-09-18 11:39:48
372
WGUS65 KTFX 181639
FFATFX
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Great Falls MT
1039 AM MDT Fri Sep 18 2026
MTZ326-191200-
/O.CAN.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/O.NEW.KTFX.FA.A.0008.260919T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gallatin Valley-
Including the cities of Bozeman and Gallatin Gateway
1039 AM MDT Fri Sep 18 2026
The Flash Flood Watch has been changed to a Flood Watch.
&&
...FLOOD WATCH IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH SATURDAY
AFTERNOON...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...The Gallatin Valley in Southwest Montana
* WHEN...From 6 PM MDT this evening through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of low-lying and
flood-prone locations.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing hourly rainfall
rates up to 0.3 inch, with localized higher amounts, are
possible.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
MTZ319-321-323-191200-
/O.NEW.KTFX.FA.A.0008.260919T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Helena Valley-Meagher County Valleys-Canyon Ferry Area-
Including the cities of Checkerboard, White Sulphur Springs, Helena,
Townsend, Martinsdale, Toston, Winston, and Ringling
1039 AM MDT Fri Sep 18 2026
...FLOOD WATCH IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH SATURDAY
AFTERNOON...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...The Canyon Ferry Area, Helena Valley, and Meagher County
Valleys in Central Montana
* WHEN...From 6 PM MDT this evening through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of low-lying and
flood-prone locations.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing hourly rainfall
rates of between 0.25 inch to 0.5 inch are possible.
- Some locations impacted include Helena, Townsend, and White
Sulphur Springs
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
MTZ327-191200-
/O.CON.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Dewey, Big Hole Pass, Wise River, Chief
Joseph Pass, and Wisdom
1039 AM MDT Fri Sep 18 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT FROM 3 PM MDT THIS AFTERNOON THROUGH SATURDAY
AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Sand Creek and Bobcat Lakes Burn
Scars.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...From 3 PM MDT this afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Sand Creek and Bobcat Lakes Burn
Scars is expected up to and during the period of the watch.
Residents near the Sand Creek and Bobcat Lakes Burn Scars should
prepare for potential debris flow. Be sure to stay up to date with
information from local authorities. Heavy rainfall could trigger
flash flooding of low-lying areas, urbanized street flooding, and
debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing locally intense
rainfall are forecast to develop over the burn scar late this
afternoon through this evening with additional precipitation
expected through Saturday, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars, including
portions of the Pioneer Mountains Scenic Byway.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ317-320-322-191200-
/O.CON.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-
Including the cities of Trident, Kings Hill Pass, Battle Ridge Pass,
Elk Park Pass, Neihart, Wickes, Montana City, Clancy, Maudlow,
Corbin, Deep Creek Pass, Homestake Pass, Bozeman Pass, Boulder, and
Monarch
1039 AM MDT Fri Sep 18 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH SATURDAY
EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of central Montana, including the following
areas, Big Belt, Bridger and Castle Mountains, Elkhorn and Boulder
Mountains and Little Belt and Highwood Mountains.
* WHEN...From 6 PM MDT this evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch area and burn scars
from the summer of 2026 is expected up to and during the period of
the watch. Residents near the Horse Gulch area and burn scars from
the summer of 2026 should prepare for potential debris flow. Be
sure to stay up to date with information from local authorities.
Heavy rainfall could trigger flash flooding of low-lying areas,
urbanized street flooding, and debris flows in and near recent
wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Moldan
Action: Continued Issued At: 2026-09-18 11:39:48
372
WGUS65 KTFX 181639
FFATFX
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Great Falls MT
1039 AM MDT Fri Sep 18 2026
MTZ326-191200-
/O.CAN.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/O.NEW.KTFX.FA.A.0008.260919T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gallatin Valley-
Including the cities of Bozeman and Gallatin Gateway
1039 AM MDT Fri Sep 18 2026
The Flash Flood Watch has been changed to a Flood Watch.
&&
...FLOOD WATCH IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH SATURDAY
AFTERNOON...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...The Gallatin Valley in Southwest Montana
* WHEN...From 6 PM MDT this evening through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of low-lying and
flood-prone locations.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing hourly rainfall
rates up to 0.3 inch, with localized higher amounts, are
possible.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
MTZ319-321-323-191200-
/O.NEW.KTFX.FA.A.0008.260919T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Helena Valley-Meagher County Valleys-Canyon Ferry Area-
Including the cities of Checkerboard, White Sulphur Springs, Helena,
Townsend, Martinsdale, Toston, Winston, and Ringling
1039 AM MDT Fri Sep 18 2026
...FLOOD WATCH IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH SATURDAY
AFTERNOON...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...The Canyon Ferry Area, Helena Valley, and Meagher County
Valleys in Central Montana
* WHEN...From 6 PM MDT this evening through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of low-lying and
flood-prone locations.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing hourly rainfall
rates of between 0.25 inch to 0.5 inch are possible.
- Some locations impacted include Helena, Townsend, and White
Sulphur Springs
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
MTZ327-191200-
/O.CON.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Dewey, Big Hole Pass, Wise River, Chief
Joseph Pass, and Wisdom
1039 AM MDT Fri Sep 18 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT FROM 3 PM MDT THIS AFTERNOON THROUGH SATURDAY
AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Sand Creek and Bobcat Lakes Burn
Scars.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...From 3 PM MDT this afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Sand Creek and Bobcat Lakes Burn
Scars is expected up to and during the period of the watch.
Residents near the Sand Creek and Bobcat Lakes Burn Scars should
prepare for potential debris flow. Be sure to stay up to date with
information from local authorities. Heavy rainfall could trigger
flash flooding of low-lying areas, urbanized street flooding, and
debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing locally intense
rainfall are forecast to develop over the burn scar late this
afternoon through this evening with additional precipitation
expected through Saturday, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars, including
portions of the Pioneer Mountains Scenic Byway.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ317-320-322-191200-
/O.CON.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-
Including the cities of Trident, Kings Hill Pass, Battle Ridge Pass,
Elk Park Pass, Neihart, Wickes, Montana City, Clancy, Maudlow,
Corbin, Deep Creek Pass, Homestake Pass, Bozeman Pass, Boulder, and
Monarch
1039 AM MDT Fri Sep 18 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH SATURDAY
EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of central Montana, including the following
areas, Big Belt, Bridger and Castle Mountains, Elkhorn and Boulder
Mountains and Little Belt and Highwood Mountains.
* WHEN...From 6 PM MDT this evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch area and burn scars
from the summer of 2026 is expected up to and during the period of
the watch. Residents near the Horse Gulch area and burn scars from
the summer of 2026 should prepare for potential debris flow. Be
sure to stay up to date with information from local authorities.
Heavy rainfall could trigger flash flooding of low-lying areas,
urbanized street flooding, and debris flows in and near recent
wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Moldan
Action: Continued Issued At: 2026-09-18 11:39:48
372
WGUS65 KTFX 181639
FFATFX
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Great Falls MT
1039 AM MDT Fri Sep 18 2026
MTZ326-191200-
/O.CAN.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/O.NEW.KTFX.FA.A.0008.260919T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Gallatin Valley-
Including the cities of Bozeman and Gallatin Gateway
1039 AM MDT Fri Sep 18 2026
The Flash Flood Watch has been changed to a Flood Watch.
&&
...FLOOD WATCH IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH SATURDAY
AFTERNOON...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...The Gallatin Valley in Southwest Montana
* WHEN...From 6 PM MDT this evening through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of low-lying and
flood-prone locations.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing hourly rainfall
rates up to 0.3 inch, with localized higher amounts, are
possible.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
MTZ319-321-323-191200-
/O.NEW.KTFX.FA.A.0008.260919T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Helena Valley-Meagher County Valleys-Canyon Ferry Area-
Including the cities of Checkerboard, White Sulphur Springs, Helena,
Townsend, Martinsdale, Toston, Winston, and Ringling
1039 AM MDT Fri Sep 18 2026
...FLOOD WATCH IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH SATURDAY
AFTERNOON...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...The Canyon Ferry Area, Helena Valley, and Meagher County
Valleys in Central Montana
* WHEN...From 6 PM MDT this evening through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of low-lying and
flood-prone locations.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing hourly rainfall
rates of between 0.25 inch to 0.5 inch are possible.
- Some locations impacted include Helena, Townsend, and White
Sulphur Springs
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
MTZ327-191200-
/O.CON.KTFX.FF.A.0007.260918T2100Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Dewey, Big Hole Pass, Wise River, Chief
Joseph Pass, and Wisdom
1039 AM MDT Fri Sep 18 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT FROM 3 PM MDT THIS AFTERNOON THROUGH SATURDAY
AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Sand Creek and Bobcat Lakes Burn
Scars.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...From 3 PM MDT this afternoon through Saturday afternoon.
* IMPACTS...Heavy rainfall over the Sand Creek and Bobcat Lakes Burn
Scars is expected up to and during the period of the watch.
Residents near the Sand Creek and Bobcat Lakes Burn Scars should
prepare for potential debris flow. Be sure to stay up to date with
information from local authorities. Heavy rainfall could trigger
flash flooding of low-lying areas, urbanized street flooding, and
debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- Showers and thunderstorms capable of producing locally intense
rainfall are forecast to develop over the burn scar late this
afternoon through this evening with additional precipitation
expected through Saturday, which may lead to flash flooding and
debris flows.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars, including
portions of the Pioneer Mountains Scenic Byway.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ317-320-322-191200-
/O.CON.KTFX.FF.A.0007.260919T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-
Including the cities of Trident, Kings Hill Pass, Battle Ridge Pass,
Elk Park Pass, Neihart, Wickes, Montana City, Clancy, Maudlow,
Corbin, Deep Creek Pass, Homestake Pass, Bozeman Pass, Boulder, and
Monarch
1039 AM MDT Fri Sep 18 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH SATURDAY
EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of central Montana, including the following
areas, Big Belt, Bridger and Castle Mountains, Elkhorn and Boulder
Mountains and Little Belt and Highwood Mountains.
* WHEN...From 6 PM MDT this evening through Saturday evening.
* IMPACTS...Heavy rainfall over the Horse Gulch area and burn scars
from the summer of 2026 is expected up to and during the period of
the watch. Residents near the Horse Gulch area and burn scars from
the summer of 2026 should prepare for potential debris flow. Be
sure to stay up to date with information from local authorities.
Heavy rainfall could trigger flash flooding of low-lying areas,
urbanized street flooding, and debris flows in and near recent
wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Moldan
Action: Continued Issued At: 2026-09-19 04:09:34
872
WGUS65 KTFX 190909
FFATFX
Flood Watch
National Weather Service Great Falls MT
309 AM MDT Sat Sep 19 2026
MTZ317-320-322-192115-
/O.CON.KTFX.FF.A.0007.000000T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-
Including the cities of Boulder, Neihart, Kings Hill Pass, Clancy,
Elk Park Pass, Maudlow, Deep Creek Pass, Battle Ridge Pass, Corbin,
Wickes, Homestake Pass, Bozeman Pass, Trident, Montana City, and
Monarch
309 AM MDT Sat Sep 19 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT THROUGH THIS EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of central Montana, including the following
areas, Big Belt, Bridger and Castle Mountains, Elkhorn and Boulder
Mountains and Little Belt and Highwood Mountains.
* WHEN...Through this evening.
* IMPACTS...Heavy rainfall over the Horse Gulch area and burn scars
from the summer of 2026 is expected up to and during the period of
the watch. Residents near the Horse Gulch area and burn scars from
the summer of 2026 should prepare for potential debris flow. Be
sure to stay up to date with information from local authorities.
Heavy rainfall could trigger flash flooding of low-lying areas,
urbanized street flooding, and debris flows in and near recent
wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ327-192115-
/O.CON.KTFX.FF.A.0007.000000T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Wisdom, Big Hole Pass, Chief Joseph Pass,
Wise River, and Dewey
309 AM MDT Sat Sep 19 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT THROUGH THIS AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Sand Creek and Bobcat Lakes Burn
Scars.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...Through this afternoon.
* IMPACTS...Heavy rainfall over the Sand Creek and Bobcat Lakes Burn
Scars is expected up to and during the period of the watch.
Residents near the Sand Creek and Bobcat Lakes Burn Scars should
prepare for potential debris flow. Be sure to stay up to date with
information from local authorities. Heavy rainfall could trigger
flash flooding of low-lying areas, urbanized street flooding, and
debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- Additional precipitation today may contribute to flooding and
debris flows in some drainages near the Bobcat Lakes and Sand
Creek burn scars.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars, including
portions of the Pioneer Mountains Scenic Byway.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ319-321-323-326-192115-
/O.CON.KTFX.FA.A.0008.000000T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Helena Valley-Meagher County Valleys-Canyon Ferry Area-Gallatin
Valley-
Including the cities of Winston, White Sulphur Springs, Bozeman,
Gallatin Gateway, Checkerboard, Townsend, Ringling, Toston,
Martinsdale, and Helena
309 AM MDT Sat Sep 19 2026
...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of central and southwest Montana, including the
following areas, in central Montana, Canyon Ferry Area, Helena
Valley and Meagher County Valleys. In southwest Montana, Gallatin
Valley.
* WHEN...Through this afternoon.
* IMPACTS...Excessive runoff may result in flooding of low-lying and
flood-prone locations.
* ADDITIONAL DETAILS...
- An area of rain will bring additional precipitation amounts to
around 1.00 inch today with locally higher amounts near the
mountains.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
BH
Action: Continued Issued At: 2026-09-19 04:09:34
872
WGUS65 KTFX 190909
FFATFX
Flood Watch
National Weather Service Great Falls MT
309 AM MDT Sat Sep 19 2026
MTZ317-320-322-192115-
/O.CON.KTFX.FF.A.0007.000000T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-
Including the cities of Boulder, Neihart, Kings Hill Pass, Clancy,
Elk Park Pass, Maudlow, Deep Creek Pass, Battle Ridge Pass, Corbin,
Wickes, Homestake Pass, Bozeman Pass, Trident, Montana City, and
Monarch
309 AM MDT Sat Sep 19 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT THROUGH THIS EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of central Montana, including the following
areas, Big Belt, Bridger and Castle Mountains, Elkhorn and Boulder
Mountains and Little Belt and Highwood Mountains.
* WHEN...Through this evening.
* IMPACTS...Heavy rainfall over the Horse Gulch area and burn scars
from the summer of 2026 is expected up to and during the period of
the watch. Residents near the Horse Gulch area and burn scars from
the summer of 2026 should prepare for potential debris flow. Be
sure to stay up to date with information from local authorities.
Heavy rainfall could trigger flash flooding of low-lying areas,
urbanized street flooding, and debris flows in and near recent
wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ327-192115-
/O.CON.KTFX.FF.A.0007.000000T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Wisdom, Big Hole Pass, Chief Joseph Pass,
Wise River, and Dewey
309 AM MDT Sat Sep 19 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
REMAINS IN EFFECT THROUGH THIS AFTERNOON...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Sand Creek and Bobcat Lakes Burn
Scars.
* WHERE...A portion of southwest Montana, including the following
area, Northwest Beaverhead County.
* WHEN...Through this afternoon.
* IMPACTS...Heavy rainfall over the Sand Creek and Bobcat Lakes Burn
Scars is expected up to and during the period of the watch.
Residents near the Sand Creek and Bobcat Lakes Burn Scars should
prepare for potential debris flow. Be sure to stay up to date with
information from local authorities. Heavy rainfall could trigger
flash flooding of low-lying areas, urbanized street flooding, and
debris flows in and near recent wildfire burn scars.
* ADDITIONAL DETAILS...
- Additional precipitation today may contribute to flooding and
debris flows in some drainages near the Bobcat Lakes and Sand
Creek burn scars.
- Some locations that may experience flash flooding include...
Areas near the Sand Creek and Bobcat Lakes Burn Scars, including
portions of the Pioneer Mountains Scenic Byway.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ319-321-323-326-192115-
/O.CON.KTFX.FA.A.0008.000000T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Helena Valley-Meagher County Valleys-Canyon Ferry Area-Gallatin
Valley-
Including the cities of Winston, White Sulphur Springs, Bozeman,
Gallatin Gateway, Checkerboard, Townsend, Ringling, Toston,
Martinsdale, and Helena
309 AM MDT Sat Sep 19 2026
...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of central and southwest Montana, including the
following areas, in central Montana, Canyon Ferry Area, Helena
Valley and Meagher County Valleys. In southwest Montana, Gallatin
Valley.
* WHEN...Through this afternoon.
* IMPACTS...Excessive runoff may result in flooding of low-lying and
flood-prone locations.
* ADDITIONAL DETAILS...
- An area of rain will bring additional precipitation amounts to
around 1.00 inch today with locally higher amounts near the
mountains.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
BH
Action: Cancelled Issued At: 2026-09-19 11:06:47
104
WGUS65 KTFX 191606
FFATFX
Flood Watch
National Weather Service Great Falls MT
1006 AM MDT Sat Sep 19 2026
MTZ327-191715-
/O.CAN.KTFX.FF.A.0007.000000T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Chief Joseph Pass, Big Hole Pass, Wise River,
Wisdom, and Dewey
1006 AM MDT Sat Sep 19 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
IS CANCELLED...
The Flash Flood Watch for the Sand Creek and Bobcat Lakes Burn Scars
is cancelled for a portion of southwest Montana, including the
following area, Northwest Beaverhead County.
Flash flooding is no longer expected to pose a threat. Please
continue to heed remaining road closures.
$$
MTZ317-320-322-200015-
/O.CON.KTFX.FF.A.0007.000000T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-
Including the cities of Boulder, Monarch, Corbin, Battle Ridge Pass,
Kings Hill Pass, Montana City, Trident, Neihart, Deep Creek Pass,
Bozeman Pass, Clancy, Wickes, Homestake Pass, Maudlow, and Elk Park
Pass
1006 AM MDT Sat Sep 19 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT THROUGH THIS EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of central Montana, including the following
areas, Big Belt, Bridger and Castle Mountains, Elkhorn and Boulder
Mountains and Little Belt and Highwood Mountains.
* WHEN...Through this evening.
* IMPACTS...Heavy rainfall over the Horse Gulch area and burn scars
from the summer of 2026 is expected up to and during the period of
the watch. Residents near the Horse Gulch area and burn scars from
the summer of 2026 should prepare for potential debris flow. Be
sure to stay up to date with information from local authorities.
Heavy rainfall could trigger flash flooding of low-lying areas,
urbanized street flooding, and debris flows in and near recent
wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ319-321-323-326-200000-
/O.CON.KTFX.FA.A.0008.000000T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Helena Valley-Meagher County Valleys-Canyon Ferry Area-Gallatin
Valley-
Including the cities of Martinsdale, Checkerboard, White Sulphur
Springs, Helena, Winston, Ringling, Townsend, Toston, Bozeman, and
Gallatin Gateway
1006 AM MDT Sat Sep 19 2026
...FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...The Canyon Ferry Area, Helena Valley, and Meagher County
Valleys in Central Montana
* WHEN...Until 6 PM MDT this evening.
* IMPACTS...Excessive runoff may result in flooding of low-lying and
flood-prone locations.
* ADDITIONAL DETAILS...
- An area of rain will bring additional precipitation amounts to
around 0.5 inch today, with locally higher amounts near the
mountains.
- Some locations impacted include Helena, Townsend, White Sulphur
Springs, and Bozeman.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Moldan
Action: Continued Issued At: 2026-09-19 11:06:47
104
WGUS65 KTFX 191606
FFATFX
Flood Watch
National Weather Service Great Falls MT
1006 AM MDT Sat Sep 19 2026
MTZ327-191715-
/O.CAN.KTFX.FF.A.0007.000000T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northwest Beaverhead County-
Including the cities of Chief Joseph Pass, Big Hole Pass, Wise River,
Wisdom, and Dewey
1006 AM MDT Sat Sep 19 2026
...FLASH FLOOD WATCH FOR THE SAND CREEK AND BOBCAT LAKES BURN SCARS
IS CANCELLED...
The Flash Flood Watch for the Sand Creek and Bobcat Lakes Burn Scars
is cancelled for a portion of southwest Montana, including the
following area, Northwest Beaverhead County.
Flash flooding is no longer expected to pose a threat. Please
continue to heed remaining road closures.
$$
MTZ317-320-322-200015-
/O.CON.KTFX.FF.A.0007.000000T0000Z-260920T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Elkhorn and Boulder Mountains-
Including the cities of Boulder, Monarch, Corbin, Battle Ridge Pass,
Kings Hill Pass, Montana City, Trident, Neihart, Deep Creek Pass,
Bozeman Pass, Clancy, Wickes, Homestake Pass, Maudlow, and Elk Park
Pass
1006 AM MDT Sat Sep 19 2026
...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026
REMAINS IN EFFECT THROUGH THIS EVENING...
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Horse Gulch area and burn scars from the
summer of 2026.
* WHERE...A portion of central Montana, including the following
areas, Big Belt, Bridger and Castle Mountains, Elkhorn and Boulder
Mountains and Little Belt and Highwood Mountains.
* WHEN...Through this evening.
* IMPACTS...Heavy rainfall over the Horse Gulch area and burn scars
from the summer of 2026 is expected up to and during the period of
the watch. Residents near the Horse Gulch area and burn scars from
the summer of 2026 should prepare for potential debris flow. Be
sure to stay up to date with information from local authorities.
Heavy rainfall could trigger flash flooding of low-lying areas,
urbanized street flooding, and debris flows in and near recent
wildfire burn scars.
* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over recent burn scars, which may lead to flash flooding
and debris flows.
- Some locations that may experience flash flooding include...
Areas near recent burn scars from the summer 2026 and the Horse
Gulch area.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MTZ319-321-323-326-200000-
/O.CON.KTFX.FA.A.0008.000000T0000Z-260920T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Helena Valley-Meagher County Valleys-Canyon Ferry Area-Gallatin
Valley-
Including the cities of Martinsdale, Checkerboard, White Sulphur
Springs, Helena, Winston, Ringling, Townsend, Toston, Bozeman, and
Gallatin Gateway
1006 AM MDT Sat Sep 19 2026
...FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING...
* WHAT...Flooding caused by excessive rainfall continues to be
possible.
* WHERE...The Canyon Ferry Area, Helena Valley, and Meagher County
Valleys in Central Montana
* WHEN...Until 6 PM MDT this evening.
* IMPACTS...Excessive runoff may result in flooding of low-lying and
flood-prone locations.
* ADDITIONAL DETAILS...
- An area of rain will bring additional precipitation amounts to
around 0.5 inch today, with locally higher amounts near the
mountains.
- Some locations impacted include Helena, Townsend, White Sulphur
Springs, and Bozeman.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Moldan
Action: Cancelled Issued At: 2026-09-19 14:28:23 328 WGUS65 KTFX 191928 FFATFX Flood Watch National Weather Service Great Falls MT 128 PM MDT Sat Sep 19 2026 MTZ317-320-322-192030- /O.CAN.KTFX.FF.A.0007.000000T0000Z-260920T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Little Belt and Highwood Mountains-Big Belt, Bridger and Castle Mountains-Elkhorn and Boulder Mountains- Including the cities of Boulder, Monarch, Corbin, Battle Ridge Pass, Kings Hill Pass, Montana City, Trident, Neihart, Deep Creek Pass, Bozeman Pass, Clancy, Wickes, Homestake Pass, Maudlow, and Elk Park Pass 128 PM MDT Sat Sep 19 2026 ...FLASH FLOOD WATCH FOR THE HORSE GULCH AND BURN SCARS OF 2026 IS CANCELLED... The Flash Flood Watch for the Horse Gulch and Burn Scars of 2026 is cancelled for a portion of central Montana, including the following areas, Big Belt, Bridger and Castle Mountains, Elkhorn and Boulder Mountains and Little Belt and Highwood Mountains. Flooding is no longer expected to pose a threat. Please heed road closures. $$ MTZ319-321-323-326-192030- /O.CAN.KTFX.FA.A.0008.000000T0000Z-260920T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Helena Valley-Meagher County Valleys-Canyon Ferry Area-Gallatin Valley- Including the cities of Martinsdale, Checkerboard, White Sulphur Springs, Helena, Winston, Ringling, Townsend, Toston, Bozeman, and Gallatin Gateway 128 PM MDT Sat Sep 19 2026 ...FLOOD WATCH IS CANCELLED... The Flood Watch is cancelled for portions of central and southwest Montana, including the following areas, in central Montana, Canyon Ferry Area, Helena Valley and Meagher County Valleys. In southwest Montana, Gallatin Valley. Flooding is no longer expected to pose a threat. Please road closures. $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||