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Thursday, Sep 24, 2026 20:27:15

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Areal Flood Watch 0006
Issued by the Riverton Forecast Office

Action Issued Starts Expiration
New 2026-09-17 11:33:15 2026-09-18 13:00:00 2026-09-20 19:00:00
Continued 2026-09-18 04:08:04 2026-09-18 13:00:00 2026-09-20 19:00:00
Continued 2026-09-18 14:10:22 2026-09-20 19:00:00
Area Extended 2026-09-18 14:10:22 2026-09-20 19:00:00
Continued 2026-09-19 02:34:43 2026-09-20 19:00:00
Continued 2026-09-19 12:54:51 2026-09-20 19:00:00
Cancelled 2026-09-20 03:10:57 2026-09-20 19:00:00
Continued 2026-09-20 03:10:57 2026-09-20 19:00:00
Continued 2026-09-20 13:50:27 2026-09-20 19:00:00
Cancelled 2026-09-20 13:50:27 2026-09-20 19:00:00
Expired 2026-09-20 18:39:02 2026-09-20 19:00:00


Action: New
Issued At: 2026-09-17 11:33:15

799 
WGUS65 KRIW 171633
FFARIW

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Riverton WY
1033 AM MDT Thu Sep 17 2026

WYZ002-003-007>011-181200-
/O.NEW.KRIW.FA.A.0006.260918T1800Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Absaroka Mountains-Cody Foothills-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-Northeast
Johnson County-Southeast Johnson County-
Including the cities of Clark, Meeteetse, Cody, Buffalo, and Kaycee
1033 AM MDT Thu Sep 17 2026

...FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SUNDAY
AFTERNOON...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...Portions of central, north central, and northwest Wyoming,
  including the following areas, in central Wyoming, Owl Creek and
  Bridger Mountains. In north central Wyoming, Bighorn Mountains
  Southeast, Bighorn Mountains West, Northeast Johnson County and
  Southeast Johnson County. In northwest Wyoming, Absaroka Mountains
  and Cody Foothills.

* WHEN...From Friday afternoon through Sunday afternoon.

* IMPACTS...Excessive rainfall may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
  - A slow moving weather system is forecast to trek across Wyoming
    Friday through Sunday and bring abundant moisture to the region,
    especially northern Wyoming, and thunderstorms. Multiple rounds
    of thunderstorms are expected and will be capable of producing
    moderate to heavy rainfall across the Watch 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.

&&

$$

Gerhardt


Action: Continued
Issued At: 2026-09-18 04:08:04

421 
WGUS65 KRIW 180907
FFARIW

Flood Watch
National Weather Service Riverton WY
307 AM MDT Fri Sep 18 2026

WYZ002-003-007>011-190000-
/O.CON.KRIW.FA.A.0006.260918T1800Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Absaroka Mountains-Cody Foothills-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-Northeast
Johnson County-Southeast Johnson County-
Including the cities of Kaycee, Buffalo, Meeteetse, Cody, and Clark
307 AM MDT Fri Sep 18 2026

...FLOOD WATCH REMAINS IN EFFECT FROM NOON MDT TODAY THROUGH SUNDAY
AFTERNOON...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...Portions of central, north central, and northwest Wyoming,
  including the following areas, in central Wyoming, Owl Creek and
  Bridger Mountains. In north central Wyoming, Bighorn Mountains
  Southeast, Bighorn Mountains West, Northeast Johnson County and
  Southeast Johnson County. In northwest Wyoming, Absaroka Mountains
  and Cody Foothills.

* WHEN...From noon MDT today through Sunday afternoon.

* IMPACTS...Excessive rainfall may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
  - A slow moving weather system will move across Wyoming today
    through Sunday and bring rounds of showers and thunderstorms to
    the region, especially northern Wyoming. Any shower or
    thunderstorm could produce moderate to heavy rainfall across the
    Watch 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.

&&

$$

Hattings


Action: Continued
Issued At: 2026-09-18 14:10:22

537 
WGUS65 KRIW 181910
FFARIW

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Riverton WY
110 PM MDT Fri Sep 18 2026

WYZ001-191300-
/O.EXA.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellowstone National Park-
Including the cities of Old Faithful, Lake, and Mammoth
110 PM MDT Fri Sep 18 2026

...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...Northwest Wyoming, including Yellowstone National Park.

* WHEN...Through Sunday afternoon.

* IMPACTS...Heavy rainfall may result in flooding of rivers, creeks,
  streams, and other low-lying and flood-prone locations. Flooding
  may occur in poor drainage areas and around steep terrain.

* ADDITIONAL DETAILS...
  - A slow moving weather system will move across Wyoming today
    through Sunday and bring rounds of showers and thunderstorms to
    the region, especially northern Wyoming. Any shower or
    thunderstorm could produce moderate to heavy rainfall across the
    Watch 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.

&&

$$

WYZ002-003-007>011-191300-
/O.CON.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Absaroka Mountains-Cody Foothills-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-Northeast
Johnson County-Southeast Johnson County-
Including the cities of Clark, Cody, Kaycee, Buffalo, and Meeteetse
110 PM MDT Fri Sep 18 2026

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...Portions of central, north central, and northwest Wyoming,
  including the following areas, in central Wyoming, Owl Creek and
  Bridger Mountains. In north central Wyoming, Bighorn Mountains
  Southeast, Bighorn Mountains West, Northeast Johnson County and
  Southeast Johnson County. In northwest Wyoming, Absaroka Mountains
  and Cody Foothills.

* WHEN...Through Sunday afternoon.

* IMPACTS...Excessive rainfall may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas and around
  steep terrain.

* ADDITIONAL DETAILS...
  - A slow moving weather system will move across Wyoming today
    through Sunday and bring rounds of showers and thunderstorms to
    the region, especially northern Wyoming. Any shower or
    thunderstorm could produce moderate to heavy rainfall across the
    Watch 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.

&&

$$

Gerhardt


Action: Area Extended
Issued At: 2026-09-18 14:10:22

537 
WGUS65 KRIW 181910
FFARIW

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Riverton WY
110 PM MDT Fri Sep 18 2026

WYZ001-191300-
/O.EXA.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellowstone National Park-
Including the cities of Old Faithful, Lake, and Mammoth
110 PM MDT Fri Sep 18 2026

...FLOOD WATCH IN EFFECT THROUGH SUNDAY AFTERNOON...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...Northwest Wyoming, including Yellowstone National Park.

* WHEN...Through Sunday afternoon.

* IMPACTS...Heavy rainfall may result in flooding of rivers, creeks,
  streams, and other low-lying and flood-prone locations. Flooding
  may occur in poor drainage areas and around steep terrain.

* ADDITIONAL DETAILS...
  - A slow moving weather system will move across Wyoming today
    through Sunday and bring rounds of showers and thunderstorms to
    the region, especially northern Wyoming. Any shower or
    thunderstorm could produce moderate to heavy rainfall across the
    Watch 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.

&&

$$

WYZ002-003-007>011-191300-
/O.CON.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Absaroka Mountains-Cody Foothills-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-Northeast
Johnson County-Southeast Johnson County-
Including the cities of Clark, Cody, Kaycee, Buffalo, and Meeteetse
110 PM MDT Fri Sep 18 2026

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...Portions of central, north central, and northwest Wyoming,
  including the following areas, in central Wyoming, Owl Creek and
  Bridger Mountains. In north central Wyoming, Bighorn Mountains
  Southeast, Bighorn Mountains West, Northeast Johnson County and
  Southeast Johnson County. In northwest Wyoming, Absaroka Mountains
  and Cody Foothills.

* WHEN...Through Sunday afternoon.

* IMPACTS...Excessive rainfall may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas and around
  steep terrain.

* ADDITIONAL DETAILS...
  - A slow moving weather system will move across Wyoming today
    through Sunday and bring rounds of showers and thunderstorms to
    the region, especially northern Wyoming. Any shower or
    thunderstorm could produce moderate to heavy rainfall across the
    Watch 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.

&&

$$

Gerhardt


Action: Continued
Issued At: 2026-09-19 02:34:43

193 
WGUS65 KRIW 190734
FFARIW

Flood Watch
National Weather Service Riverton WY
134 AM MDT Sat Sep 19 2026

WYZ001>003-007>011-200000-
/O.CON.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellowstone National Park-Absaroka Mountains-Cody Foothills-Owl
Creek and Bridger Mountains-Bighorn Mountains West-Bighorn
Mountains Southeast-Northeast Johnson County-Southeast Johnson
County-
Including the cities of Clark, Lake, Cody, Kaycee, Mammoth, Old
Faithful, Meeteetse, and Buffalo
134 AM MDT Sat Sep 19 2026

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...Portions of central, north central, and northwest Wyoming,
  including the following areas, in central Wyoming, Owl Creek and
  Bridger Mountains. In north central Wyoming, Bighorn Mountains
  Southeast, Bighorn Mountains West, Northeast Johnson County and
  Southeast Johnson County. In northwest Wyoming, Absaroka Mountains,
  Cody Foothills and Yellowstone National Park.

* WHEN...Through Sunday afternoon.

* IMPACTS...Excessive rainfall may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas and around
  steep terrain.

* ADDITIONAL DETAILS...
  - A slow moving weather system will move across Wyoming today
    through Sunday and bring rounds of showers and thunderstorms to
    the region, especially northern Wyoming. Any shower or
    thunderstorm could produce moderate to heavy rainfall across the
    Watch 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.

&&

$$

Hattings


Action: Continued
Issued At: 2026-09-19 12:54:51

638 
WGUS65 KRIW 191754
FFARIW

Flood Watch
National Weather Service Riverton WY
1154 AM MDT Sat Sep 19 2026

WYZ001>003-007>011-201300-
/O.CON.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellowstone National Park-Absaroka Mountains-Cody Foothills-Owl
Creek and Bridger Mountains-Bighorn Mountains West-Bighorn
Mountains Southeast-Northeast Johnson County-Southeast Johnson
County-
Including the cities of Meeteetse, Mammoth, Old Faithful, Kaycee,
Lake, Buffalo, Clark, and Cody
1154 AM MDT Sat Sep 19 2026

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...Portions of central, north central, and northwest Wyoming,
  including the following areas, in central Wyoming, Owl Creek and
  Bridger Mountains. In north central Wyoming, Bighorn Mountains
  Southeast, Bighorn Mountains West, Northeast Johnson County and
  Southeast Johnson County. In northwest Wyoming, Absaroka Mountains,
  Cody Foothills and Yellowstone National Park.

* WHEN...Through Sunday afternoon.

* IMPACTS...Excessive rainfall may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas and around
  steep terrain.

* ADDITIONAL DETAILS...
  - A slow moving weather system will move across Wyoming today and
    Sunday and bring rounds of showers and thunderstorms to the
    region, especially northern Wyoming. Any shower or thunderstorm
    could produce moderate to heavy rainfall across the Watch 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.

&&

$$

Gerhardt


Action: Cancelled
Issued At: 2026-09-20 03:10:57

527 
WGUS65 KRIW 200810
FFARIW

Flood Watch
National Weather Service Riverton WY
210 AM MDT Sun Sep 20 2026

WYZ001>003-200915-
/O.CAN.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
Including the cities of Mammoth, Old Faithful, Cody, Clark, Lake, and
Meeteetse
210 AM MDT Sun Sep 20 2026

...FLOOD WATCH IS CANCELLED...

The Flood Watch is cancelled for a portion of northwest Wyoming,
including the following areas, Absaroka Mountains, Cody Foothills and
Yellowstone National Park. Heavy rain and flooding is now longer
expected.

Flooding is no longer expected to pose a threat. Please continue to
heed remaining road closures.

$$

WYZ007>011-210000-
/O.CON.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Owl Creek and Bridger Mountains-Bighorn Mountains West-Bighorn
Mountains Southeast-Northeast Johnson County-Southeast Johnson
County-
Including the cities of Buffalo and Kaycee
210 AM MDT Sun Sep 20 2026

...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...Portions of central and north central Wyoming, including
  the following areas, in central Wyoming, Owl Creek and Bridger
  Mountains. In north central Wyoming, Bighorn Mountains Southeast,
  Bighorn Mountains West, Northeast Johnson County and Southeast
  Johnson County.

* WHEN...Through this afternoon.

* IMPACTS...Excessive rainfall may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas and around
  steep terrain.

* ADDITIONAL DETAILS...
  - A slow moving weather system will bring rounds of showers and
    thunderstorms to the region. Any shower or thunderstorm could
    produce moderate to heavy rainfall across the Watch 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.

&&

$$

Hattings


Action: Continued
Issued At: 2026-09-20 03:10:57

527 
WGUS65 KRIW 200810
FFARIW

Flood Watch
National Weather Service Riverton WY
210 AM MDT Sun Sep 20 2026

WYZ001>003-200915-
/O.CAN.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
Including the cities of Mammoth, Old Faithful, Cody, Clark, Lake, and
Meeteetse
210 AM MDT Sun Sep 20 2026

...FLOOD WATCH IS CANCELLED...

The Flood Watch is cancelled for a portion of northwest Wyoming,
including the following areas, Absaroka Mountains, Cody Foothills and
Yellowstone National Park. Heavy rain and flooding is now longer
expected.

Flooding is no longer expected to pose a threat. Please continue to
heed remaining road closures.

$$

WYZ007>011-210000-
/O.CON.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Owl Creek and Bridger Mountains-Bighorn Mountains West-Bighorn
Mountains Southeast-Northeast Johnson County-Southeast Johnson
County-
Including the cities of Buffalo and Kaycee
210 AM MDT Sun Sep 20 2026

...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...Portions of central and north central Wyoming, including
  the following areas, in central Wyoming, Owl Creek and Bridger
  Mountains. In north central Wyoming, Bighorn Mountains Southeast,
  Bighorn Mountains West, Northeast Johnson County and Southeast
  Johnson County.

* WHEN...Through this afternoon.

* IMPACTS...Excessive rainfall may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas and around
  steep terrain.

* ADDITIONAL DETAILS...
  - A slow moving weather system will bring rounds of showers and
    thunderstorms to the region. Any shower or thunderstorm could
    produce moderate to heavy rainfall across the Watch 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.

&&

$$

Hattings


Action: Continued
Issued At: 2026-09-20 13:50:27

059 
WGUS65 KRIW 201849
FFARIW

Flood Watch
National Weather Service Riverton WY
1249 PM MDT Sun Sep 20 2026

WYZ007-202000-
/O.CAN.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Owl Creek and Bridger Mountains-
1249 PM MDT Sun Sep 20 2026

...FLOOD WATCH IS CANCELLED...

The Flood Watch is cancelled for the Owl Creek and Bridger Mountains.

Flooding is no longer expected to pose a threat, however, light rain
is possible this through 8PM.

$$

WYZ008>011-210000-
/O.CON.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bighorn Mountains West-Bighorn Mountains Southeast-Northeast
Johnson County-Southeast Johnson County-
Including the cities of Kaycee and Buffalo
1249 PM MDT Sun Sep 20 2026

...FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...A portion of north central Wyoming, including the Bighorn
  Mountains and Johnson County.

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Heavy rainfall may result in flooding of rivers, creeks,
  streams, and other low-lying and flood-prone locations. Flooding
  may occur in poor drainage and urban areas and around steep
  terrain.

* ADDITIONAL DETAILS...
  - As a weather system shifts into the High Plains, lingering
    moisture will allow for showers and thunderstorms to be capable
    of moderate to heavy rainfall across the Watch 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.

&&

$$

Gerhardt


Action: Cancelled
Issued At: 2026-09-20 13:50:27

059 
WGUS65 KRIW 201849
FFARIW

Flood Watch
National Weather Service Riverton WY
1249 PM MDT Sun Sep 20 2026

WYZ007-202000-
/O.CAN.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Owl Creek and Bridger Mountains-
1249 PM MDT Sun Sep 20 2026

...FLOOD WATCH IS CANCELLED...

The Flood Watch is cancelled for the Owl Creek and Bridger Mountains.

Flooding is no longer expected to pose a threat, however, light rain
is possible this through 8PM.

$$

WYZ008>011-210000-
/O.CON.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bighorn Mountains West-Bighorn Mountains Southeast-Northeast
Johnson County-Southeast Johnson County-
Including the cities of Kaycee and Buffalo
1249 PM MDT Sun Sep 20 2026

...FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING...

* WHAT...Flash flooding caused by moderate to heavy rainfall is
  possible, especially in terrain and poor drainage areas.

* WHERE...A portion of north central Wyoming, including the Bighorn
  Mountains and Johnson County.

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Heavy rainfall may result in flooding of rivers, creeks,
  streams, and other low-lying and flood-prone locations. Flooding
  may occur in poor drainage and urban areas and around steep
  terrain.

* ADDITIONAL DETAILS...
  - As a weather system shifts into the High Plains, lingering
    moisture will allow for showers and thunderstorms to be capable
    of moderate to heavy rainfall across the Watch 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.

&&

$$

Gerhardt


Action: Expired
Issued At: 2026-09-20 18:39:02

925 
WGUS65 KRIW 202338
FFARIW

Flood Watch
National Weather Service Riverton WY
538 PM MDT Sun Sep 20 2026

WYZ008>011-210045-
/O.EXP.KRIW.FA.A.0006.000000T0000Z-260921T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bighorn Mountains West-Bighorn Mountains Southeast-Northeast
Johnson County-Southeast Johnson County-
Including the cities of Kaycee and Buffalo
538 PM MDT Sun Sep 20 2026

...FLOOD WATCH WILL EXPIRE AT 6 PM MDT THIS EVENING...

The Flood Watch will expire for a portion of north central Wyoming,
including the following areas, Bighorn Mountains Southeast, Bighorn
Mountains West, Northeast Johnson County and Southeast Johnson
County.

The flash flooding threat has ended. Therefore, the Flood Watch will
expire at 6 PM MDT this evening.

$$

TL



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