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Winter Storm Watch 0003
Issued by the Denver / Boulder Forecast Office

Action Issued Starts Expiration
New 2026-05-03 14:43:22 2026-05-05 01:00:00 2026-05-06 13:00:00
New 2026-05-03 14:43:22 2026-05-05 07:00:00 2026-05-06 19:00:00
Upgraded 2026-05-04 01:51:39 2026-05-05 01:00:00 2026-05-06 13:00:00
Time Extended 2026-05-04 01:51:39 2026-05-05 07:00:00 2026-05-06 16:00:00
Time and Area Extended 2026-05-04 01:51:39 2026-05-05 21:00:00 2026-05-06 16:00:00
Upgraded 2026-05-04 14:16:51 2026-05-05 07:00:00 2026-05-06 16:00:00
Continued 2026-05-04 14:16:51 2026-05-05 21:00:00 2026-05-06 16:00:00
Upgraded 2026-05-05 00:53:10 2026-05-05 21:00:00 2026-05-06 16:00:00


Action: New
Issued At: 2026-05-03 14:43:22

176 
WWUS45 KBOU 031943
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
143 PM MDT Sun May 3 2026

COZ033-035-040630-
/O.NEW.KBOU.WS.A.0003.260505T0600Z-260506T1800Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-Larimer and
Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Rabbit Ears Range, Glendevey, Willow Creek
Pass, Rocky Mountain National Park, Laramie and Medicine Bow
Mountains, Nederland, Estes Park, Red Feather Lakes, and Cameron Pass
143 PM MDT Sun May 3 2026

...WINTER STORM WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH
WEDNESDAY MORNING...

* WHAT...Heavy snow possible. Total snow accumulations between 6 and
  14 inches possible, with isolated totals up to 20 inches possible
  above 8,000 feet.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range,
  and the Northern Front Range Foothills.

* WHEN...From late Monday night through Wednesday morning.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult at times, especially
  Tuesday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

Considerable uncertainty still exists with the storm track, but
confidence is increasing that impactful snowfall will develop.

&&

$$

COZ034-036-040630-
/O.NEW.KBOU.WS.A.0003.260505T1200Z-260507T0000Z/
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties
Above 9000 Feet-Jefferson and West Douglas Counties Above
6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below
9000 Feet-
Including the cities of Eisenhower Tunnel, Indian Peaks, Evergreen,
Mount Blue Sky, Westcreek, Berthoud Pass, Breckenridge, Kenosha
Mountains, Central City, East Slopes Southern Gore Range, East Slopes
Mosquito Range, Georgetown, Idaho Springs, Bailey, Williams Fork
Mountains, and Winter Park
143 PM MDT Sun May 3 2026

...WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations between 4 and
  10 inches possible, with isolated totals up to 18 inches possible
  along and north of I-70.

* WHERE...The Mountains of Summit County, the Mosquito Range, and the
  Indian Peaks, and the Southern Front Range Foothills.

* WHEN...From Tuesday morning through Wednesday afternoon.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult at times, especially
  Tuesday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

Considerable uncertainty still exists with the storm track, but
confidence is increasing that impactful snowfall will develop.

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/bou

Hiris


Action: New
Issued At: 2026-05-03 14:43:22

176 
WWUS45 KBOU 031943
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
143 PM MDT Sun May 3 2026

COZ033-035-040630-
/O.NEW.KBOU.WS.A.0003.260505T0600Z-260506T1800Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-Larimer and
Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Rabbit Ears Range, Glendevey, Willow Creek
Pass, Rocky Mountain National Park, Laramie and Medicine Bow
Mountains, Nederland, Estes Park, Red Feather Lakes, and Cameron Pass
143 PM MDT Sun May 3 2026

...WINTER STORM WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH
WEDNESDAY MORNING...

* WHAT...Heavy snow possible. Total snow accumulations between 6 and
  14 inches possible, with isolated totals up to 20 inches possible
  above 8,000 feet.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range,
  and the Northern Front Range Foothills.

* WHEN...From late Monday night through Wednesday morning.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult at times, especially
  Tuesday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

Considerable uncertainty still exists with the storm track, but
confidence is increasing that impactful snowfall will develop.

&&

$$

COZ034-036-040630-
/O.NEW.KBOU.WS.A.0003.260505T1200Z-260507T0000Z/
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties
Above 9000 Feet-Jefferson and West Douglas Counties Above
6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below
9000 Feet-
Including the cities of Eisenhower Tunnel, Indian Peaks, Evergreen,
Mount Blue Sky, Westcreek, Berthoud Pass, Breckenridge, Kenosha
Mountains, Central City, East Slopes Southern Gore Range, East Slopes
Mosquito Range, Georgetown, Idaho Springs, Bailey, Williams Fork
Mountains, and Winter Park
143 PM MDT Sun May 3 2026

...WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations between 4 and
  10 inches possible, with isolated totals up to 18 inches possible
  along and north of I-70.

* WHERE...The Mountains of Summit County, the Mosquito Range, and the
  Indian Peaks, and the Southern Front Range Foothills.

* WHEN...From Tuesday morning through Wednesday afternoon.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult at times, especially
  Tuesday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

Considerable uncertainty still exists with the storm track, but
confidence is increasing that impactful snowfall will develop.

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/bou

Hiris


Action: Upgraded
Issued At: 2026-05-04 01:51:39

721 
WWUS45 KBOU 040651
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
1251 AM MDT Mon May 4 2026

COZ033-035-042100-
/O.UPG.KBOU.WS.A.0003.260505T0600Z-260506T1800Z/
/O.NEW.KBOU.WS.W.0005.260505T0600Z-260506T2100Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-Larimer and
Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Willow Creek Pass, Glendevey, Red Feather
Lakes, Rocky Mountain National Park, Rabbit Ears Range, Estes Park,
Laramie and Medicine Bow Mountains, Nederland, and Cameron Pass
1251 AM MDT Mon May 4 2026

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 10 and
  24 inches, heaviest above 8,000 feet.

* WHERE...Rocky Mountain National Park, the Medicine Bow Range, and
  the northern Front Range foothills, including Red Feather Lakes,
  Estes Park, and Nederland.

* WHEN...From midnight tonight to 3 PM MDT Wednesday. Heaviest
  Tuesday morning through Tuesday night.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult to impossible at times,
  especially late Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for
Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ030-032-037-043-045-046-042100-
/O.NEW.KBOU.WW.Y.0017.260506T0200Z-260506T2100Z/
Jackson County Below 9000 Feet-Grand and Summit Counties Below
9000 Feet-Central and Southeast Park County-Central and South
Weld County-Central and East Adams and Arapahoe Counties-North
and Northeast Elbert County Below 6000 Feet/North Lincoln County-
Including the cities of Rand, Deer Trail, Hartsel, Lake George, Hot
Sulphur Springs, Greeley, Fraser, Leader, Hugo, Fairplay, Gould,
Dillon, Bennett, Agate, Grand Lake, Fort Lupton, Kremmling, Spicer,
Eaton, Walden, South Park, Roggen, North Park, Byers, Limon, Granby,
and Matheson
1251 AM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 3 PM MDT
WEDNESDAY...

* WHAT...Snow likely. Total snow accumulations between 1 and 6 inches
  possible.

* WHERE...The high mountain valleys, and portions of the central
  plains from Weld County south into Lincoln County.

* WHEN...From 8 PM Tuesday to 3 PM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions, which may impact the
  Wednesday morning commute. The heavy and wet nature of the snow may
  lead to damage to tree limbs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
for Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ038>041-042100-
/O.EXB.KBOU.WS.A.0003.260506T0200Z-260506T2100Z/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County-North
Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County-Elbert/Central and East Douglas
Counties Above 6000 Feet-
Including the cities of Fondis, Brighton, Hereford, Highlands Ranch,
Denver International Airport, Fort Collins, Larkspur, Lakewood,
Castle Rock, Loveland, Boulder, Nunn, Littleton, Golden, Elbert,
Aurora, Arvada, City of Denver, Longmont, Parker, and Kiowa
1251 AM MDT Mon May 4 2026

...WINTER STORM WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations between 3 and
  9 inches expected, heaviest on colder surfaces and west of I-25.

* WHERE...Fort Collins, Boulder and the western suburbs of Denver,
  Denver, and Castle Rock.

* WHEN...From Tuesday evening through Wednesday afternoon. Heaviest
  Tuesday night into Wednesday morning.

* IMPACTS...Heavy wet snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Despite lesser accumulations on roadways, slick and
  hazardous conditions are still possible for the Wednesday morning
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

&&

$$

COZ034-036-042100-
/O.EXT.KBOU.WS.A.0003.260505T1200Z-260506T2100Z/
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties
Above 9000 Feet-Jefferson and West Douglas Counties Above
6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below
9000 Feet-
Including the cities of Berthoud Pass, East Slopes Mosquito Range,
Evergreen, Westcreek, Kenosha Mountains, Williams Fork Mountains,
Indian Peaks, East Slopes Southern Gore Range, Idaho Springs, Winter
Park, Breckenridge, Central City, Georgetown, Bailey, Eisenhower
Tunnel, and Mount Blue Sky
1251 AM MDT Mon May 4 2026

...WINTER STORM WATCH NOW IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow likely. Total snow accumulations between 6 and 18
  inches possible.

* WHERE...The Mountains of Summit County, the Mosquito Range, the
  Indian Peaks Wilderness, and the Southern Front Range foothills.
  Heaviest snowfall favored along and north of I-70.

* WHEN...From Tuesday morning through Wednesday afternoon.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult. The hazardous conditions
  will impact the Tuesday evening and Wednesday morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

Some uncertainty still exists with the storm track, but confidence is
increasing that impactful snowfall will develop.

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/bou

BRQ


Action: Time Extended
Issued At: 2026-05-04 01:51:39

721 
WWUS45 KBOU 040651
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
1251 AM MDT Mon May 4 2026

COZ033-035-042100-
/O.UPG.KBOU.WS.A.0003.260505T0600Z-260506T1800Z/
/O.NEW.KBOU.WS.W.0005.260505T0600Z-260506T2100Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-Larimer and
Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Willow Creek Pass, Glendevey, Red Feather
Lakes, Rocky Mountain National Park, Rabbit Ears Range, Estes Park,
Laramie and Medicine Bow Mountains, Nederland, and Cameron Pass
1251 AM MDT Mon May 4 2026

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 10 and
  24 inches, heaviest above 8,000 feet.

* WHERE...Rocky Mountain National Park, the Medicine Bow Range, and
  the northern Front Range foothills, including Red Feather Lakes,
  Estes Park, and Nederland.

* WHEN...From midnight tonight to 3 PM MDT Wednesday. Heaviest
  Tuesday morning through Tuesday night.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult to impossible at times,
  especially late Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for
Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ030-032-037-043-045-046-042100-
/O.NEW.KBOU.WW.Y.0017.260506T0200Z-260506T2100Z/
Jackson County Below 9000 Feet-Grand and Summit Counties Below
9000 Feet-Central and Southeast Park County-Central and South
Weld County-Central and East Adams and Arapahoe Counties-North
and Northeast Elbert County Below 6000 Feet/North Lincoln County-
Including the cities of Rand, Deer Trail, Hartsel, Lake George, Hot
Sulphur Springs, Greeley, Fraser, Leader, Hugo, Fairplay, Gould,
Dillon, Bennett, Agate, Grand Lake, Fort Lupton, Kremmling, Spicer,
Eaton, Walden, South Park, Roggen, North Park, Byers, Limon, Granby,
and Matheson
1251 AM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 3 PM MDT
WEDNESDAY...

* WHAT...Snow likely. Total snow accumulations between 1 and 6 inches
  possible.

* WHERE...The high mountain valleys, and portions of the central
  plains from Weld County south into Lincoln County.

* WHEN...From 8 PM Tuesday to 3 PM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions, which may impact the
  Wednesday morning commute. The heavy and wet nature of the snow may
  lead to damage to tree limbs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
for Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ038>041-042100-
/O.EXB.KBOU.WS.A.0003.260506T0200Z-260506T2100Z/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County-North
Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County-Elbert/Central and East Douglas
Counties Above 6000 Feet-
Including the cities of Fondis, Brighton, Hereford, Highlands Ranch,
Denver International Airport, Fort Collins, Larkspur, Lakewood,
Castle Rock, Loveland, Boulder, Nunn, Littleton, Golden, Elbert,
Aurora, Arvada, City of Denver, Longmont, Parker, and Kiowa
1251 AM MDT Mon May 4 2026

...WINTER STORM WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations between 3 and
  9 inches expected, heaviest on colder surfaces and west of I-25.

* WHERE...Fort Collins, Boulder and the western suburbs of Denver,
  Denver, and Castle Rock.

* WHEN...From Tuesday evening through Wednesday afternoon. Heaviest
  Tuesday night into Wednesday morning.

* IMPACTS...Heavy wet snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Despite lesser accumulations on roadways, slick and
  hazardous conditions are still possible for the Wednesday morning
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

&&

$$

COZ034-036-042100-
/O.EXT.KBOU.WS.A.0003.260505T1200Z-260506T2100Z/
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties
Above 9000 Feet-Jefferson and West Douglas Counties Above
6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below
9000 Feet-
Including the cities of Berthoud Pass, East Slopes Mosquito Range,
Evergreen, Westcreek, Kenosha Mountains, Williams Fork Mountains,
Indian Peaks, East Slopes Southern Gore Range, Idaho Springs, Winter
Park, Breckenridge, Central City, Georgetown, Bailey, Eisenhower
Tunnel, and Mount Blue Sky
1251 AM MDT Mon May 4 2026

...WINTER STORM WATCH NOW IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow likely. Total snow accumulations between 6 and 18
  inches possible.

* WHERE...The Mountains of Summit County, the Mosquito Range, the
  Indian Peaks Wilderness, and the Southern Front Range foothills.
  Heaviest snowfall favored along and north of I-70.

* WHEN...From Tuesday morning through Wednesday afternoon.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult. The hazardous conditions
  will impact the Tuesday evening and Wednesday morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

Some uncertainty still exists with the storm track, but confidence is
increasing that impactful snowfall will develop.

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/bou

BRQ


Action: Time and Area Extended
Issued At: 2026-05-04 01:51:39

721 
WWUS45 KBOU 040651
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
1251 AM MDT Mon May 4 2026

COZ033-035-042100-
/O.UPG.KBOU.WS.A.0003.260505T0600Z-260506T1800Z/
/O.NEW.KBOU.WS.W.0005.260505T0600Z-260506T2100Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-Larimer and
Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Willow Creek Pass, Glendevey, Red Feather
Lakes, Rocky Mountain National Park, Rabbit Ears Range, Estes Park,
Laramie and Medicine Bow Mountains, Nederland, and Cameron Pass
1251 AM MDT Mon May 4 2026

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 10 and
  24 inches, heaviest above 8,000 feet.

* WHERE...Rocky Mountain National Park, the Medicine Bow Range, and
  the northern Front Range foothills, including Red Feather Lakes,
  Estes Park, and Nederland.

* WHEN...From midnight tonight to 3 PM MDT Wednesday. Heaviest
  Tuesday morning through Tuesday night.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult to impossible at times,
  especially late Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for
Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ030-032-037-043-045-046-042100-
/O.NEW.KBOU.WW.Y.0017.260506T0200Z-260506T2100Z/
Jackson County Below 9000 Feet-Grand and Summit Counties Below
9000 Feet-Central and Southeast Park County-Central and South
Weld County-Central and East Adams and Arapahoe Counties-North
and Northeast Elbert County Below 6000 Feet/North Lincoln County-
Including the cities of Rand, Deer Trail, Hartsel, Lake George, Hot
Sulphur Springs, Greeley, Fraser, Leader, Hugo, Fairplay, Gould,
Dillon, Bennett, Agate, Grand Lake, Fort Lupton, Kremmling, Spicer,
Eaton, Walden, South Park, Roggen, North Park, Byers, Limon, Granby,
and Matheson
1251 AM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 3 PM MDT
WEDNESDAY...

* WHAT...Snow likely. Total snow accumulations between 1 and 6 inches
  possible.

* WHERE...The high mountain valleys, and portions of the central
  plains from Weld County south into Lincoln County.

* WHEN...From 8 PM Tuesday to 3 PM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions, which may impact the
  Wednesday morning commute. The heavy and wet nature of the snow may
  lead to damage to tree limbs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
for Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ038>041-042100-
/O.EXB.KBOU.WS.A.0003.260506T0200Z-260506T2100Z/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County-North
Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County-Elbert/Central and East Douglas
Counties Above 6000 Feet-
Including the cities of Fondis, Brighton, Hereford, Highlands Ranch,
Denver International Airport, Fort Collins, Larkspur, Lakewood,
Castle Rock, Loveland, Boulder, Nunn, Littleton, Golden, Elbert,
Aurora, Arvada, City of Denver, Longmont, Parker, and Kiowa
1251 AM MDT Mon May 4 2026

...WINTER STORM WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations between 3 and
  9 inches expected, heaviest on colder surfaces and west of I-25.

* WHERE...Fort Collins, Boulder and the western suburbs of Denver,
  Denver, and Castle Rock.

* WHEN...From Tuesday evening through Wednesday afternoon. Heaviest
  Tuesday night into Wednesday morning.

* IMPACTS...Heavy wet snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Despite lesser accumulations on roadways, slick and
  hazardous conditions are still possible for the Wednesday morning
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

&&

$$

COZ034-036-042100-
/O.EXT.KBOU.WS.A.0003.260505T1200Z-260506T2100Z/
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties
Above 9000 Feet-Jefferson and West Douglas Counties Above
6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below
9000 Feet-
Including the cities of Berthoud Pass, East Slopes Mosquito Range,
Evergreen, Westcreek, Kenosha Mountains, Williams Fork Mountains,
Indian Peaks, East Slopes Southern Gore Range, Idaho Springs, Winter
Park, Breckenridge, Central City, Georgetown, Bailey, Eisenhower
Tunnel, and Mount Blue Sky
1251 AM MDT Mon May 4 2026

...WINTER STORM WATCH NOW IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow likely. Total snow accumulations between 6 and 18
  inches possible.

* WHERE...The Mountains of Summit County, the Mosquito Range, the
  Indian Peaks Wilderness, and the Southern Front Range foothills.
  Heaviest snowfall favored along and north of I-70.

* WHEN...From Tuesday morning through Wednesday afternoon.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult. The hazardous conditions
  will impact the Tuesday evening and Wednesday morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

Some uncertainty still exists with the storm track, but confidence is
increasing that impactful snowfall will develop.

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/bou

BRQ


Action: Upgraded
Issued At: 2026-05-04 14:16:51

763 
WWUS45 KBOU 041916
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
116 PM MDT Mon May 4 2026

COZ034-036-050800-
/O.UPG.KBOU.WS.A.0003.260505T1200Z-260506T2100Z/
/O.EXB.KBOU.WS.W.0005.260505T1800Z-260506T2100Z/
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties
Above 9000 Feet-Jefferson and West Douglas Counties Above
6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below
9000 Feet-
Including the cities of Evergreen, Winter Park, Eisenhower Tunnel,
Williams Fork Mountains, Central City, Bailey, Idaho Springs, Mount
Blue Sky, Westcreek, East Slopes Mosquito Range, Berthoud Pass, East
Slopes Southern Gore Range, Georgetown, Indian Peaks, Breckenridge,
and Kenosha Mountains
116 PM MDT Mon May 4 2026

...WINTER STORM WARNING IN EFFECT FROM NOON TUESDAY TO 3 PM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 6 and
  18 inches, with the heaviest snowfall favored along and north of
  I-70.

* WHERE...The Mountains of Summit County, the Mosquito Range, the
  Indian Peaks Wilderness, and the Southern Front Range foothills.

* WHEN...From noon Tuesday to 3 PM MDT Wednesday. Heaviest Tuesday
  night into Wednesday morning.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult. The hazardous conditions
  will impact the Tuesday evening and Wednesday morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for
Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ033-035-050800-
/O.CON.KBOU.WS.W.0005.260505T0600Z-260506T2100Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-Larimer and
Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Rocky Mountain National Park, Cameron Pass,
Estes Park, Nederland, Willow Creek Pass, Red Feather Lakes, Laramie
and Medicine Bow Mountains, Glendevey, and Rabbit Ears Range
116 PM MDT Mon May 4 2026

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3
PM MDT WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 10 and
  24 inches, heaviest above 8,000 feet. Isolated totals up to 30
  inches possible across the higher mountains in Boulder and Larimer
  counties.

* WHERE...Rocky Mountain National Park, the Medicine Bow Range, and
  the northern Front Range foothills, including Red Feather Lakes,
  Estes Park, and Nederland.

* WHEN...From midnight tonight to 3 PM MDT Wednesday.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult at times, especially late
  Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for
Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ031-050800-
/O.EXB.KBOU.WW.Y.0017.260505T1800Z-260506T1800Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
116 PM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TUESDAY TO NOON MDT
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations between 6 and 14
  inches. Winds gusting as high as 35 mph.

* WHERE...Rabbit Ears Pass.

* WHEN...From noon Tuesday to noon MDT Wednesday.

* IMPACTS...Travel could be difficult at times, especially Tuesday
  night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
for Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

If traveling to the mountains, be prepared for winter driving
conditions. Check cotrip.org for road closures and traction laws.

&&

$$

COZ030-032-037-043-045-046-050800-
/O.CON.KBOU.WW.Y.0017.260506T0200Z-260506T2100Z/
Jackson County Below 9000 Feet-Grand and Summit Counties Below
9000 Feet-Central and Southeast Park County-Central and South
Weld County-Central and East Adams and Arapahoe Counties-North
and Northeast Elbert County Below 6000 Feet/North Lincoln County-
Including the cities of North Park, Kremmling, Leader, Granby, Agate,
Walden, Hartsel, Greeley, Limon, Spicer, Fraser, Gould, Hot Sulphur
Springs, Rand, Roggen, Matheson, Deer Trail, Bennett, Hugo, Byers,
Fort Lupton, Fairplay, Grand Lake, Lake George, Eaton, Dillon, and
South Park
116 PM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM TUESDAY TO 3
PM MDT WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 6
  inches, with heavier amounts possible across Park County.

* WHERE...The high mountain valleys, and portions of the central
  plains from Weld County south into Lincoln County.

* WHEN...From 8 PM Tuesday to 3 PM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions, which may impact the
  Wednesday morning commute. The heavy and wet nature of the snow may
  lead to damage to tree limbs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
for Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ038>041-050800-
/O.CON.KBOU.WS.A.0003.260506T0200Z-260506T2100Z/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County-North
Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County-Elbert/Central and East Douglas
Counties Above 6000 Feet-
Including the cities of Golden, Elbert, Highlands Ranch, Brighton,
City of Denver, Longmont, Kiowa, Fort Collins, Denver International
Airport, Larkspur, Lakewood, Littleton, Fondis, Parker, Arvada,
Loveland, Nunn, Boulder, Hereford, Aurora, and Castle Rock
116 PM MDT Mon May 4 2026

...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations between 3 and
  8 inches possible, heaviest on colder surfaces and west of I-25.

* WHERE...Fort Collins, Boulder and the western suburbs of Denver,
  Denver, and Castle Rock.

* WHEN...From Tuesday evening through Wednesday afternoon. Heaviest
  Tuesday night into Wednesday morning.

* IMPACTS...Heavy wet snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Despite lesser accumulations on roadways, slick and
  hazardous conditions are still possible for the Wednesday morning
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/bou

Hiris


Action: Continued
Issued At: 2026-05-04 14:16:51

763 
WWUS45 KBOU 041916
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
116 PM MDT Mon May 4 2026

COZ034-036-050800-
/O.UPG.KBOU.WS.A.0003.260505T1200Z-260506T2100Z/
/O.EXB.KBOU.WS.W.0005.260505T1800Z-260506T2100Z/
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties
Above 9000 Feet-Jefferson and West Douglas Counties Above
6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below
9000 Feet-
Including the cities of Evergreen, Winter Park, Eisenhower Tunnel,
Williams Fork Mountains, Central City, Bailey, Idaho Springs, Mount
Blue Sky, Westcreek, East Slopes Mosquito Range, Berthoud Pass, East
Slopes Southern Gore Range, Georgetown, Indian Peaks, Breckenridge,
and Kenosha Mountains
116 PM MDT Mon May 4 2026

...WINTER STORM WARNING IN EFFECT FROM NOON TUESDAY TO 3 PM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 6 and
  18 inches, with the heaviest snowfall favored along and north of
  I-70.

* WHERE...The Mountains of Summit County, the Mosquito Range, the
  Indian Peaks Wilderness, and the Southern Front Range foothills.

* WHEN...From noon Tuesday to 3 PM MDT Wednesday. Heaviest Tuesday
  night into Wednesday morning.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult. The hazardous conditions
  will impact the Tuesday evening and Wednesday morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for
Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ033-035-050800-
/O.CON.KBOU.WS.W.0005.260505T0600Z-260506T2100Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-Larimer and
Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Rocky Mountain National Park, Cameron Pass,
Estes Park, Nederland, Willow Creek Pass, Red Feather Lakes, Laramie
and Medicine Bow Mountains, Glendevey, and Rabbit Ears Range
116 PM MDT Mon May 4 2026

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3
PM MDT WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 10 and
  24 inches, heaviest above 8,000 feet. Isolated totals up to 30
  inches possible across the higher mountains in Boulder and Larimer
  counties.

* WHERE...Rocky Mountain National Park, the Medicine Bow Range, and
  the northern Front Range foothills, including Red Feather Lakes,
  Estes Park, and Nederland.

* WHEN...From midnight tonight to 3 PM MDT Wednesday.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult at times, especially late
  Tuesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for
Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ031-050800-
/O.EXB.KBOU.WW.Y.0017.260505T1800Z-260506T1800Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
116 PM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TUESDAY TO NOON MDT
WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations between 6 and 14
  inches. Winds gusting as high as 35 mph.

* WHERE...Rabbit Ears Pass.

* WHEN...From noon Tuesday to noon MDT Wednesday.

* IMPACTS...Travel could be difficult at times, especially Tuesday
  night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
for Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

If traveling to the mountains, be prepared for winter driving
conditions. Check cotrip.org for road closures and traction laws.

&&

$$

COZ030-032-037-043-045-046-050800-
/O.CON.KBOU.WW.Y.0017.260506T0200Z-260506T2100Z/
Jackson County Below 9000 Feet-Grand and Summit Counties Below
9000 Feet-Central and Southeast Park County-Central and South
Weld County-Central and East Adams and Arapahoe Counties-North
and Northeast Elbert County Below 6000 Feet/North Lincoln County-
Including the cities of North Park, Kremmling, Leader, Granby, Agate,
Walden, Hartsel, Greeley, Limon, Spicer, Fraser, Gould, Hot Sulphur
Springs, Rand, Roggen, Matheson, Deer Trail, Bennett, Hugo, Byers,
Fort Lupton, Fairplay, Grand Lake, Lake George, Eaton, Dillon, and
South Park
116 PM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM TUESDAY TO 3
PM MDT WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 6
  inches, with heavier amounts possible across Park County.

* WHERE...The high mountain valleys, and portions of the central
  plains from Weld County south into Lincoln County.

* WHEN...From 8 PM Tuesday to 3 PM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions, which may impact the
  Wednesday morning commute. The heavy and wet nature of the snow may
  lead to damage to tree limbs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
for Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ038>041-050800-
/O.CON.KBOU.WS.A.0003.260506T0200Z-260506T2100Z/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County-North
Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County-Elbert/Central and East Douglas
Counties Above 6000 Feet-
Including the cities of Golden, Elbert, Highlands Ranch, Brighton,
City of Denver, Longmont, Kiowa, Fort Collins, Denver International
Airport, Larkspur, Lakewood, Littleton, Fondis, Parker, Arvada,
Loveland, Nunn, Boulder, Hereford, Aurora, and Castle Rock
116 PM MDT Mon May 4 2026

...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations between 3 and
  8 inches possible, heaviest on colder surfaces and west of I-25.

* WHERE...Fort Collins, Boulder and the western suburbs of Denver,
  Denver, and Castle Rock.

* WHEN...From Tuesday evening through Wednesday afternoon. Heaviest
  Tuesday night into Wednesday morning.

* IMPACTS...Heavy wet snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Despite lesser accumulations on roadways, slick and
  hazardous conditions are still possible for the Wednesday morning
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this approaching storm.

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/bou

Hiris


Action: Upgraded
Issued At: 2026-05-05 00:53:10

404 
WWUS45 KBOU 050552
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
1152 PM MDT Mon May 4 2026

COZ038>041-051800-
/O.UPG.KBOU.WS.A.0003.260506T0200Z-260506T2100Z/
/O.EXB.KBOU.WS.W.0005.260506T0200Z-260506T2100Z/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County-North
Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe
Counties/East Broomfield County-Elbert/Central and East Douglas
Counties Above 6000 Feet-
Including the cities of Castle Rock, Loveland, Denver International
Airport, Nunn, Larkspur, Hereford, City of Denver, Highlands Ranch,
Elbert, Boulder, Longmont, Parker, Arvada, Fondis, Brighton, Aurora,
Kiowa, Lakewood, Fort Collins, Golden, and Littleton
1152 PM MDT Mon May 4 2026

...WINTER STORM WARNING IN EFFECT FROM 8 PM TUESDAY TO 3 PM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 4 and
  8 inches with locally up to 12 inches near the foothills and across
  the Palmer Divide.

* WHERE...Fort Collins, Boulder and the western suburbs of Denver,
  Denver, and Castle Rock.

* WHEN...From 8 PM Tuesday to 3 PM MDT Wednesday.

* IMPACTS...Heavy wet snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Despite lesser accumulations on roadways, slick and
  hazardous conditions are still possible for the Wednesday morning
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for
Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ033-035-051800-
/O.CON.KBOU.WS.W.0005.260505T0600Z-260506T2100Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-Larimer and
Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Rabbit Ears Range, Glendevey, Estes Park,
Rocky Mountain National Park, Cameron Pass, Nederland, Laramie and
Medicine Bow Mountains, Willow Creek Pass, and Red Feather Lakes
1152 PM MDT Mon May 4 2026

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 10 and
  24 inches, heaviest above 8,000 feet. Isolated totals up to 30
  inches possible across the higher mountains in Boulder and Larimer
  counties.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range,
  and The Northern Front Range Foothills.

* WHEN...Until 3 PM MDT Wednesday.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult at times, especially
  Tuesday afternoon through Wednesday morning which will affect the
  evening commute Tuesday and the morning commute on Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for
Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ034-036-051800-
/O.CON.KBOU.WS.W.0005.260505T1800Z-260506T2100Z/
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties
Above 9000 Feet-Jefferson and West Douglas Counties Above
6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below
9000 Feet-
Including the cities of Central City, East Slopes Southern Gore
Range, Williams Fork Mountains, Evergreen, Idaho Springs, Bailey,
Eisenhower Tunnel, Mount Blue Sky, Kenosha Mountains, Indian Peaks,
Westcreek, Georgetown, Breckenridge, Winter Park, East Slopes
Mosquito Range, and Berthoud Pass
1152 PM MDT Mon May 4 2026

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TUESDAY TO 3 PM
MDT WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 6 and
  18 inches, with the heaviest snowfall favored along and north of
  I-70.

* WHERE...The Mountains of Summit County, the Mosquito Range, and the
  Indian Peaks, and The Southern Front Range Foothills.

* WHEN...From noon Tuesday to 3 PM MDT Wednesday.

* IMPACTS...Heavy snow will accumulate on tree branches and
  powerlines, possibly causing them to break and lead to power
  outages. Travel could be very difficult to impossible. The
  hazardous conditions will impact the Tuesday evening and Wednesday
  morning commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. The latest road conditions for
Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ042-044-049-051800-
/O.EXA.KBOU.WW.Y.0017.260506T0200Z-260506T2100Z/
Northeast Weld County-Morgan County-Washington County-
Including the cities of Goodrich, Brush, Briggsdale, Otis, Fort
Morgan, Akron, Last Chance, Wiggins, Stoneham, Grover, Pawnee Buttes,
Raymer, and Cope
1152 PM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 3 PM MDT
WEDNESDAY...

* WHAT...Wet snow expected. Total snow accumulations between 3 and 5
  inches.

* WHERE...Briggsdale, Fort Morgan, and Akron.

* WHEN...From 8 PM Tuesday to 3 PM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions especially late Tuesday
  night through Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
for Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

COZ031-051800-
/O.CON.KBOU.WW.Y.0017.260505T1800Z-260506T1800Z/
West Jackson and West Grand Counties Above 9000 Feet-
Including the cities of Mt Zirkel
1152 PM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TUESDAY TO
NOON MDT WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations between 6 and 14
  inches. Winds gusting as high as 35 mph.

* WHERE...Rabbit Ears Pass.

* WHEN...From noon Tuesday to noon MDT Wednesday.

* IMPACTS...Travel could be difficult at times, especially Tuesday
  night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
for Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

If traveling to the mountains, be prepared for winter driving
conditions. Check cotrip.org for road closures and traction laws.

&&

$$

COZ030-032-037-043-045-046-051800-
/O.CON.KBOU.WW.Y.0017.260506T0200Z-260506T2100Z/
Jackson County Below 9000 Feet-Grand and Summit Counties Below
9000 Feet-Central and Southeast Park County-Central and South
Weld County-Central and East Adams and Arapahoe Counties-North
and Northeast Elbert County Below 6000 Feet/North Lincoln County-
Including the cities of Fort Lupton, Spicer, Agate, North Park,
Walden, Byers, Hartsel, Hugo, Fairplay, Granby, Limon, Leader, Hot
Sulphur Springs, Grand Lake, South Park, Gould, Fraser, Kremmling,
Bennett, Matheson, Lake George, Rand, Greeley, Dillon, Eaton, Roggen,
and Deer Trail
1152 PM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM TUESDAY TO 3
PM MDT WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations between 3 and 7
  inches, with heavier amounts possible across Park County.

* WHERE...Portions of central, east central, north central, and
  northeast Colorado.

* WHEN...From 8 PM Tuesday to 3 PM MDT Wednesday.

* IMPACTS...Plan on slippery road conditions, which may impact the
  Wednesday morning commute. The heavy and wet nature of the snow may
  lead to damage to tree limbs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road conditions
for Colorado can be obtained by calling 5 1 1 or by going to
www.cotrip.org.

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/bou

63



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