High Wind Warning 5, NWS Denver/Boulder, CO

092 
WWUS75 KBOU 111907
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
107 PM MDT Wed Mar 11 2026

COZ033>035-120600-
/O.UPG.KBOU.HW.A.0005.260312T0900Z-260313T1200Z/
/O.EXB.KBOU.HW.W.0005.260312T1000Z-260313T1800Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-South and
Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear
Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer
and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of East Slopes Mosquito Range, Glendevey, Indian
Peaks, Berthoud Pass, Williams Fork Mountains, Laramie and Medicine
Bow Mountains, Kenosha Mountains, Winter Park, Nederland, Rocky
Mountain National Park, Eisenhower Tunnel, Mount Blue Sky, Willow
Creek Pass, East Slopes Southern Gore Range, Breckenridge, Cameron
Pass, Estes Park, Rabbit Ears Range, and Red Feather Lakes
107 PM MDT Wed Mar 11 2026

...HIGH WIND WARNING IN EFFECT FROM 4 AM THURSDAY TO NOON MDT
FRIDAY...

* WHAT...West winds 35 to 50 mph with gusts up to 90 mph possible.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range,
  The Mountains of Summit County, the Mosquito Range, the Indian
  Peaks, and The Northern Front Range Foothills.

* WHEN...From 4 AM Thursday to noon MDT Friday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Power outages are possible. Travel will be difficult, especially
  for high profile vehicles. Gusty winds will blow around unsecured
  objects and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind.

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

COZ038-042-048-120600-
/O.CON.KBOU.HW.W.0005.260312T1600Z-260313T0100Z/
Larimer County Below 6000 Feet/Northwest Weld County-Northeast
Weld County-Logan County-
Including the cities of Stoneham, Fort Collins, Loveland, Crook,
Raymer, Briggsdale, Nunn, Merino, Hereford, Peetz, Grover, Pawnee
Buttes, and Sterling
107 PM MDT Wed Mar 11 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MDT
THURSDAY...

* WHAT...West winds 30 to 45 mph with gusts up to 75 mph expected.

* WHERE...North of Fort Collins, Briggsdale, and Sterling.

* WHEN...From 10 AM to 7 PM MDT Thursday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Power outages are possible. Travel will be difficult, especially
  for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind.

&&

$$

COZ039-120600-
/O.EXB.KBOU.HW.A.0005.260312T1600Z-260313T0100Z/
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
Including the cities of Longmont, Golden, Lakewood, Arvada, and
Boulder
107 PM MDT Wed Mar 11 2026

...HIGH WIND WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY
EVENING...

* WHAT...West winds 25 to 35 mph with gusts up to 65 mph possible.

* WHERE...Boulder and the western suburbs of Denver.

* WHEN...From Thursday morning through Thursday evening.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Power outages are possible. Travel could be difficult, especially
  for high profile vehicles. Strong winds may lead to rapid growth of
  any new fires, particularly below 7,500 ft. Gusty winds will blow
  around unsecured objects and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates.

Fasten loose objects or shelter objects in a safe location prior to
the onset of winds.

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

Avoid outdoor burning or any activity that may cause sparks. The
strong winds will likely fuel rapid fire growth.

&&

$$

COZ036-120600-
/O.EXT.KBOU.HW.A.0005.260312T1600Z-260313T0100Z/
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including the cities of Georgetown, Evergreen, Bailey, Westcreek,
Idaho Springs, and Central City
107 PM MDT Wed Mar 11 2026

...HIGH WIND WATCH NOW IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...

* WHAT...West winds 25 to 35 mph with gusts up to 70 mph possible.

* WHERE...The Southern Front Range Foothills.

* WHEN...From Thursday morning through Thursday evening.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Power outages are possible. Travel could be difficult, especially
  for high profile vehicles. Strong winds may lead to rapid growth of
  any new fires, particularly below 7,500 ft. Gusty winds will blow
  around unsecured objects and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates.

Fasten loose objects or shelter objects in a safe location prior to
the onset of winds.

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

Avoid outdoor burning or any activity that may cause sparks. The
strong winds will likely fuel rapid fire growth.

&&

$$

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

AP

865 
WWUS75 KBOU 120550
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
1150 PM MDT Wed Mar 11 2026

COZ039-120700-
/O.CAN.KBOU.HW.A.0005.260312T1600Z-260313T0100Z/
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
Including the cities of Golden, Lakewood, Boulder, Longmont, and
Arvada
1150 PM MDT Wed Mar 11 2026

...HIGH WIND WATCH IS CANCELLED...

While it will still be windy today, the threat of high winds greater
than 75 mph for Boulder and the western suburbs of Denver has
decreased.  Peak gusts of 40-60 mph can still be expected in these
areas, and a Red Flag Warning remains in effect.

$$

COZ036-122015-
/O.UPG.KBOU.HW.A.0005.260312T1600Z-260313T0100Z/
/O.EXB.KBOU.HW.W.0005.260312T1600Z-260313T1800Z/
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including the cities of Georgetown, Evergreen, Central City,
Westcreek, Bailey, and Idaho Springs
1150 PM MDT Wed Mar 11 2026

...HIGH WIND WARNING IN EFFECT FROM 10 AM THURSDAY TO NOON MDT
FRIDAY...

* WHAT...West winds 25 to 40 mph with gusts up to 80 mph expected.

* WHERE...The Southern Front Range Foothills, with the strongest
  winds along and north of I-70.

* WHEN...Winds will strengthen this morning, and remain quite strong
  through this afternoon and evening. A slight decrease is possible
  tonight.

* IMPACTS...Damaging winds could blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes I-70 from
  Golden to the Eisenhower Tunnel. Strong winds may lead to rapid
  growth of any new fires, particularly below 7,500 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drivers of high profile vehicles should consider delaying travel
until winds subside Friday afternoon. People are urged to secure
loose objects that could be blown around or damaged by the wind.

&&

$$

COZ033>035-122015-
/O.CON.KBOU.HW.W.0005.260312T1000Z-260313T1800Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-South and
Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear
Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer
and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Breckenridge, Williams Fork Mountains, Willow
Creek Pass, Rocky Mountain National Park, Berthoud Pass, Nederland,
East Slopes Southern Gore Range, Red Feather Lakes, Indian Peaks,
Laramie and Medicine Bow Mountains, Rabbit Ears Range, Glendevey,
Eisenhower Tunnel, Mount Blue Sky, Cameron Pass, East Slopes Mosquito
Range, Kenosha Mountains, Winter Park, and Estes Park
1150 PM MDT Wed Mar 11 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 AM THURSDAY TO NOON MDT
FRIDAY...

* WHAT...West winds 35 to 50 mph with gusts 80 to 100 mph expected.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range,
  The Mountains of Summit County, the Mosquito Range, the Indian
  Peaks, and The Northern Front Range Foothills.

* WHEN...From 4 AM Thursday to noon MDT Friday.

* IMPACTS...Damaging winds may blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes U.S. 40 over
  Berthoud Pass, I-70 from Golden to the Eisenhower Tunnel, and the
  Peak to Peak Highway. Strong winds may lead to rapid growth of any
  new fires, particularly below 7,500 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drivers of high profile vehicles should consider delaying travel
until winds subside Friday afternoon. People are urged to secure
loose objects that could be blown around or damaged by the wind.

&&

$$

COZ038-042-048-122015-
/O.CON.KBOU.HW.W.0005.260312T1600Z-260313T0100Z/
Larimer County Below 6000 Feet/Northwest Weld County-Northeast
Weld County-Logan County-
Including the cities of Pawnee Buttes, Merino, Loveland, Crook,
Hereford, Peetz, Stoneham, Fort Collins, Grover, Briggsdale, Nunn,
Sterling, and Raymer
1150 PM MDT Wed Mar 11 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM MDT
THURSDAY...

* WHAT...West winds 30 to 45 mph with gusts up to 75 mph expected
  north of Wellington, and gusts to around 60 mph across northern
  Weld and Logan Counties.

* WHERE...Western Fort Collins, Wellington, Briggsdale, and Sterling.

* WHEN...From 10 AM to 7 PM MDT Thursday.

* IMPACTS...Damaging winds may blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes I-25 north of
  Fort Collins to the Wyoming border. Strong winds may lead to rapid
  growth of any new fires.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drivers of high profile vehicles should consider delaying travel
until winds subside Friday afternoon. People are urged to secure
loose objects that could be blown around or damaged by the wind.

&&

$$

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

20

500 
WWUS75 KBOU 121709
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
1109 AM MDT Thu Mar 12 2026

COZ033>035-130115-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-South and
Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear
Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer
and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Berthoud Pass, Estes Park, Nederland, Indian
Peaks, Winter Park, Willow Creek Pass, Mount Blue Sky, Eisenhower
Tunnel, Breckenridge, Laramie and Medicine Bow Mountains, Glendevey,
Rabbit Ears Range, Red Feather Lakes, Kenosha Mountains, Rocky
Mountain National Park, Williams Fork Mountains, East Slopes Southern
Gore Range, East Slopes Mosquito Range, and Cameron Pass
1109 AM MDT Thu Mar 12 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* WHAT...West winds 35 to 50 mph with gusts 80 to 100 mph expected.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range,
  The Mountains of Summit County, the Mosquito Range, the Indian
  Peaks, and The Northern Front Range Foothills.

* WHEN...Until noon MDT Friday.

* IMPACTS...Damaging winds may blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes U.S. 40 over
  Berthoud Pass, I-70 from Golden to the Eisenhower Tunnel, and the
  Peak to Peak Highway. Strong winds may lead to rapid growth of any
  new fires, particularly below 7,500 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drivers of high profile vehicles should consider delaying travel
until winds subside Friday afternoon.

People are urged to secure loose objects that could be blown around
or damaged by the wind.

&&

$$

COZ036-130115-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including the cities of Idaho Springs, Georgetown, Evergreen,
Westcreek, Central City, and Bailey
1109 AM MDT Thu Mar 12 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 80 mph.

* WHERE...The Southern Front Range Foothills, with the strongest
  winds along and north of I-70.

* WHEN...Until noon MDT Friday.

* IMPACTS...Damaging winds could blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes I-70 from
  Golden to the Eisenhower Tunnel. Strong winds may lead to rapid
  growth of any new fires, particularly below 7,500 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drivers of high profile vehicles should consider delaying travel
until winds subside Friday afternoon.

People are urged to secure loose objects that could be blown around
or damaged by the wind.

&&

$$

COZ038-042-048-130100-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T0100Z/
Larimer County Below 6000 Feet/Northwest Weld County-Northeast
Weld County-Logan County-
Including the cities of Loveland, Sterling, Peetz, Crook, Grover,
Fort Collins, Nunn, Pawnee Buttes, Hereford, Raymer, Merino,
Stoneham, and Briggsdale
1109 AM MDT Thu Mar 12 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING...

* WHAT...West winds 35 to 50 mph with gusts up to 90 mph expected
  north of Wellington, and gusts to around 60 mph across northern
  Weld and Logan Counties.

* WHERE...Western Fort Collins, Wellington, Briggsdale, and Sterling.

* WHEN...Until 7 PM MDT this evening.

* IMPACTS...Damaging winds may blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes I-25 north of
  Fort Collins to the Wyoming border. Strong winds may lead to rapid
  growth of any new fires.

* ADDITIONAL DETAILS...Blowing dust may reduce visibility to less
  than a quarter mile for brief periods.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drivers of high profile vehicles should consider delaying travel
until winds subside Friday afternoon.

People are urged to secure loose objects that could be blown around
or damaged by the wind.

&&

$$

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

Meier

274 
WWUS75 KBOU 130046
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
646 PM MDT Thu Mar 12 2026

COZ042-048-130200-
/O.EXP.KBOU.HW.W.0005.000000T0000Z-260313T0100Z/
Northeast Weld County-Logan County-
Including the cities of Peetz, Crook, Stoneham, Pawnee Buttes,
Raymer, Merino, Briggsdale, Sterling, and Grover
646 PM MDT Thu Mar 12 2026

...HIGH WIND WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING...

Winds are slowly decreasing across Logan and northeastern Weld county
this evening, and should continue to diminish after sunset.
Therefore, the High Wind Warning will be allowed to expire at 7 PM. A
Red Flag Warning remains in effect until 9 PM MDT this evening.

$$

COZ038-130200-
/O.EXT.KBOU.HW.W.0005.000000T0000Z-260313T0200Z/
Larimer County Below 6000 Feet/Northwest Weld County-
Including the cities of Nunn, Loveland, Hereford, and Fort Collins
646 PM MDT Thu Mar 12 2026

...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 PM MDT THIS EVENING...

* WHAT...West winds 30 to 40 mph with gusts up to 70 north of
  Wellington to the Wyoming border. Gusts up to 45 mph in Fort
  Collins and Loveland.

* WHERE...Western Fort Collins, Wellington, Briggsdale, and Nunn.

* WHEN...Until 8 PM MDT this evening.

* IMPACTS...Damaging winds may blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes I-25 north of
  Fort Collins to the Wyoming border.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drivers of high profile vehicles should consider delaying travel
until winds subside.

People are urged to secure loose objects that could be blown around
or damaged by the wind.

&&

$$

COZ033>035-131200-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-South and
Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear
Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer
and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Estes Park, Mount Blue Sky, Williams Fork
Mountains, Kenosha Mountains, Breckenridge, Glendevey, East Slopes
Mosquito Range, Winter Park, East Slopes Southern Gore Range, Laramie
and Medicine Bow Mountains, Eisenhower Tunnel, Willow Creek Pass,
Cameron Pass, Nederland, Rocky Mountain National Park, Berthoud Pass,
Red Feather Lakes, Rabbit Ears Range, and Indian Peaks
646 PM MDT Thu Mar 12 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 75 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range,
  The Mountains of Summit County, the Mosquito Range, the Indian
  Peaks, and The Northern Front Range Foothills.

* WHEN...Until noon MDT Friday.

* IMPACTS...Damaging winds may blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes U.S. 40 over
  Berthoud Pass, I-70 from Golden to the Eisenhower Tunnel, and the
  Peak to Peak Highway. Strong winds may lead to rapid growth of any
  new fires, particularly below 7,500 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind.

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

COZ036-131200-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including the cities of Georgetown, Central City, Evergreen, Idaho
Springs, Bailey, and Westcreek
646 PM MDT Thu Mar 12 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* WHAT...West winds 25 to 35 mph with gusts up to 75 mph.

* WHERE...The Southern Front Range Foothills, with the strongest
  winds along and north of I-70.

* WHEN...Until noon MDT Friday.

* IMPACTS...Damaging winds could blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes I-70 from
  Golden to the Eisenhower Tunnel. Strong winds may lead to rapid
  growth of any new fires, particularly below 7,500 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind.

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

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

Hiris

546 
WWUS75 KBOU 130154
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
754 PM MDT Thu Mar 12 2026

COZ038-130300-
/O.EXP.KBOU.HW.W.0005.000000T0000Z-260313T0200Z/
Larimer County Below 6000 Feet/Northwest Weld County-
Including the cities of Nunn, Loveland, Hereford, and Fort Collins
754 PM MDT Thu Mar 12 2026

...HIGH WIND WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING...

Winds are slowly decreasing this evening, and should continue to
diminish over the next few hours. Therefore, the High Wind Warning
will be allowed to expire.

$$

COZ033>035-131215-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-South and
Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear
Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer
and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Estes Park, Mount Blue Sky, Williams Fork
Mountains, Kenosha Mountains, Breckenridge, Glendevey, East Slopes
Mosquito Range, Winter Park, East Slopes Southern Gore Range, Laramie
and Medicine Bow Mountains, Eisenhower Tunnel, Willow Creek Pass,
Cameron Pass, Nederland, Rocky Mountain National Park, Berthoud Pass,
Red Feather Lakes, Rabbit Ears Range, and Indian Peaks
754 PM MDT Thu Mar 12 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 80 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range,
  The Mountains of Summit County, the Mosquito Range, the Indian
  Peaks, and The Northern Front Range Foothills.

* WHEN...Until noon MDT Friday.

* IMPACTS...Damaging winds may blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes U.S. 40 over
  Berthoud Pass, I-70 from Golden to the Eisenhower Tunnel, and the
  Peak to Peak Highway. Strong winds may lead to rapid growth of any
  new fires, particularly below 7,500 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind.

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

COZ036-131215-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including the cities of Georgetown, Central City, Evergreen, Idaho
Springs, Bailey, and Westcreek
754 PM MDT Thu Mar 12 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY...

* WHAT...West winds 25 to 35 mph with gusts up to 75 mph.

* WHERE...The Southern Front Range Foothills.

* WHEN...Until noon MDT Friday.

* IMPACTS...Damaging winds could blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes I-70 from
  Golden to the Eisenhower Tunnel. Strong winds may lead to rapid
  growth of any new fires, particularly below 7,500 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind.

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

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

Hiris

157 
WWUS75 KBOU 130829
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
229 AM MDT Fri Mar 13 2026

COZ033>035-131800-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-South and
Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear
Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer
and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Kenosha Mountains, Glendevey, Williams Fork
Mountains, Rocky Mountain National Park, East Slopes Southern Gore
Range, Nederland, Willow Creek Pass, Berthoud Pass, Cameron Pass, Red
Feather Lakes, Estes Park, East Slopes Mosquito Range, Breckenridge,
Winter Park, Indian Peaks, Rabbit Ears Range, Mount Blue Sky, Laramie
and Medicine Bow Mountains, and Eisenhower Tunnel
229 AM MDT Fri Mar 13 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* WHAT...West winds 30 to 40 mph with gusts up to 80 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range,
  The Mountains of Summit County, the Mosquito Range, the Indian
  Peaks, and The Northern Front Range Foothills.

* WHEN...Until noon MDT today.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles. Gusty winds will blow around
  unsecured objects and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drivers of high profile vehicles should consider delaying travel
until winds subside this afternoon.

People are urged to secure loose objects that could be blown around
or damaged by the wind.

&&

$$

COZ036-131800-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including the cities of Idaho Springs, Westcreek, Central City,
Georgetown, Evergreen, and Bailey
229 AM MDT Fri Mar 13 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* WHAT...West winds 25 to 35 mph with gusts up to 70 mph.

* WHERE...The Southern Front Range Foothills, with the strongest
  winds along and north of I-70.

* WHEN...Until noon MDT today.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind.

&&

$$

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

63

939 
WWUS75 KBOU 131725
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
1125 AM MDT Fri Mar 13 2026

COZ033>035-131830-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-South and
Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear
Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer
and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Kenosha Mountains, East Slopes Mosquito
Range, Rocky Mountain National Park, Glendevey, Williams Fork
Mountains, Indian Peaks, Rabbit Ears Range, Laramie and Medicine Bow
Mountains, Eisenhower Tunnel, Berthoud Pass, Estes Park, Red Feather
Lakes, Nederland, Winter Park, Breckenridge, East Slopes Southern
Gore Range, Cameron Pass, Willow Creek Pass, and Mount Blue Sky
1125 AM MDT Fri Mar 13 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* WHAT...West winds 30 to 40 mph with gusts up to 80 mph.

* WHERE...Rocky Mountain National Park and the Medicine Bow Range,
  The Mountains of Summit County, the Mosquito Range, the Indian
  Peaks, and The Northern Front Range Foothills.

* WHEN...Until noon MDT today.

* IMPACTS...Damaging winds may blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes U.S. 40 over
  Berthoud Pass, I-70 from Golden to the Eisenhower Tunnel, and the
  Peak to Peak Highway. Strong winds may lead to rapid growth of any
  new fires, particularly below 7,500 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drivers of high profile vehicles should consider delaying travel
until winds subside this afternoon.

People are urged to secure loose objects that could be blown around
or damaged by the wind.

&&

$$

COZ036-131830-
/O.CON.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including the cities of Bailey, Idaho Springs, Central City,
Westcreek, Evergreen, and Georgetown
1125 AM MDT Fri Mar 13 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* WHAT...West winds 25 to 35 mph with gusts up to 70 mph.

* WHERE...The Southern Front Range Foothills, with the strongest
  winds along and north of I-70.

* WHEN...Until noon MDT today.

* IMPACTS...Damaging winds could blow down trees and power lines, and
  scattered power outages are possible. Travel will be difficult,
  especially for high profile vehicles. This includes I-70 from
  Golden to the Eisenhower Tunnel. Strong winds may lead to rapid
  growth of any new fires, particularly below 7,500 ft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around
or damaged by the wind.

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

COZ041-042-044>051-141200-
/O.NEW.KBOU.HW.A.0006.260315T1000Z-260316T0000Z/
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Morgan County-Central and East Adams and
Arapahoe Counties-North and Northeast Elbert County Below
6000 Feet/North Lincoln County-Southeast Elbert County Below
6000 Feet/South Lincoln County-Logan County-Washington County-
Sedgwick County-Phillips County-
Including the cities of Sterling, Cope, Grover, Briggsdale, Agate,
Bennett, Forder, Limon, Sedgwick, Castle Rock, Brush, Julesburg,
Byers, Ovid, Haxtun, Larkspur, Kutch, Elbert, Kiowa, Karval, Punkin
Center, Otis, Pawnee Buttes, Matheson, Amherst, Stoneham, Crook,
Merino, Akron, Last Chance, Fort Morgan, Fondis, Wiggins, Raymer,
Goodrich, Holyoke, Leader, Hugo, Peetz, and Deer Trail
1125 AM MDT Fri Mar 13 2026

...HIGH WIND WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY
AFTERNOON...

* WHAT...North winds 30 to 40 mph with gusts up to 65 mph possible.

* WHERE...Castle Rock, Briggsdale, Fort Morgan, Byers, Limon,
  Southern Lincoln County, Sterling, Akron, Julesburg, and Holyoke.

* WHEN...From late Saturday night through Sunday afternoon.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates.

&&

$$

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

22

327 
WWUS75 KBOU 131753
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
1153 AM MDT Fri Mar 13 2026

COZ033>036-131900-
/O.EXP.KBOU.HW.W.0005.000000T0000Z-260313T1800Z/
South and East Jackson/Larimer/North and Northeast
Grand/Northwest Boulder Counties Above 9000 Feet-South and
Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear
Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer
and Boulder Counties Between 6000 and 9000 Feet-Jefferson and
West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including the cities of Kenosha Mountains, East Slopes Mosquito
Range, Idaho Springs, Rocky Mountain National Park, Georgetown,
Central City, Evergreen, Glendevey, Williams Fork Mountains, Indian
Peaks, Rabbit Ears Range, Laramie and Medicine Bow Mountains,
Eisenhower Tunnel, Bailey, Westcreek, Berthoud Pass, Estes Park, Red
Feather Lakes, Nederland, Winter Park, Breckenridge, East Slopes
Southern Gore Range, Cameron Pass, Willow Creek Pass, and Mount Blue
Sky
1153 AM MDT Fri Mar 13 2026

...HIGH WIND WARNING WILL EXPIRE AT NOON MDT TODAY...

Strong winds with gusts up to 60 mph will continue in the mountains
throughout the day today.

$$

COZ041-042-044>051-141200-
/O.CON.KBOU.HW.A.0006.260315T1000Z-260316T0000Z/
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Morgan County-Central and East Adams and
Arapahoe Counties-North and Northeast Elbert County Below
6000 Feet/North Lincoln County-Southeast Elbert County Below
6000 Feet/South Lincoln County-Logan County-Washington County-
Sedgwick County-Phillips County-
Including the cities of Sterling, Cope, Grover, Briggsdale, Agate,
Bennett, Forder, Limon, Sedgwick, Castle Rock, Brush, Julesburg,
Byers, Ovid, Haxtun, Larkspur, Kutch, Elbert, Kiowa, Karval, Punkin
Center, Otis, Pawnee Buttes, Matheson, Amherst, Stoneham, Crook,
Merino, Akron, Last Chance, Fort Morgan, Fondis, Wiggins, Raymer,
Goodrich, Holyoke, Leader, Hugo, Peetz, and Deer Trail
1153 AM MDT Fri Mar 13 2026

...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH
SUNDAY AFTERNOON...

* WHAT...North winds 30 to 40 mph with gusts up to 65 mph possible.

* WHERE...Castle Rock, Briggsdale, Fort Morgan, Byers, Limon,
  Southern Lincoln County, Sterling, Akron, Julesburg, and Holyoke.

* WHEN...From late Saturday night through Sunday afternoon.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates.

&&

$$

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

22

Area Forecast Discussion
National Weather Service Denver/Boulder CO
1146 AM MDT Wed Mar 11 2026

.KEY MESSAGES...

- Prolonged period of widespread critical fire weather conditions
  is expected Thursday through Saturday as successive downslope
  wind events impact the Front Range.

- Mountain snow expected to develop late Saturday following a cold
  front, with precipitation potential and cooler temperatures
  extending into the lower elevations through Sunday.

&&

.DISCUSSION /Through Tuesday/...
Issued at 1155 PM MDT Tue Mar 10 2026

Current trends necessitated some changes to our short-term forecast
grids for this overnight period, with low and mid-level moisture
spilling over the Continental Divide and into the urban corridor and
plains in the wake of the frontal passage. Snow showers have become
more expansive with gradual moistening of near-surface conditions,
so have introduced higher PoPs and lowered snow levels to account
for the potential for a few areas of light snow accumulations up to
1", mainly on colder surfaces. In the mountains, 2-5" can be
expected through the next few hours, with locally slick conditions
and travel impacts for the passes. Shower activity should subside by
around 3AM Wednesday.

Expect cooler highs Wednesday in the wake of the front, mostly in
the low to mid 50's for the plains. Clear skies will prevail and the
jet will remain fairly close just to our north, and with quite
efficient mixing, breezy conditions will continue in the high
country and also portions of our northeast plains, with near-
critical fire weather conditions in place.

Healthy amplification of the surface low on Thursday across the
northern CONUS will support rapid strengthening of east-west
pressure gradients, set to peak Thursday afternoon when cross-
barrier flow up to 65 kts is indicated. Cross-sections suggest
mountain wave development beginning near daybreak, with the axis of
strongest winds centered over our foothills above 7,500 ft, where
the probability of gusts exceeding 80-90 mph is high (75%). There's
some disagreement with regard to inversion placement and duration
however, and wind directions become suboptimal (i.e. more
northwesterly) above ~600mb for downwind amplification, which
notably limits confidence in such strong gusts materializing for
adjacent lower elevations. Most of the higher resolution models
still maintain the core of these winds in the foothills, but we've
seen guidance change quickly in the past within the 12-24 hours
preceding the onset of wind events, so will opt to maintain our
current High Wind Watch for areas along/west of I-25 with this
potential in mind. As is typical, the Highway 93 corridor would be
the most susceptible to incursions of very strong gusts, if that
occurs. In any case, most of the urban corridor and plains will be
exposed to fingers of at least moderately strong winds (gusts 35-50
mph) through the day, which will drive critical fire weather
conditions given renewed low humidity.

Pressure gradients relax Friday, but we'll remain under a warm and
dry subsident flow regime, with healthy flow aloft persisting. As
such, critical fire weather conditions will continue despite some
moderation in the peak strength of the winds.

Our next wind event arrives Saturday as a developing shortwave over
the northern plains nudges the jet stream southward over Colorado.
Downslope winds will strengthen through the day, and mountain wave
potential does exist for the afternoon hours. Critical fire weather
conditions may be more expansive Saturday for the lower elevations
and into portions of the foothills, and we'll be plenty dry and
warm. However, the strongest winds for many areas, including our
plains, may actually hold off until Thursday evening into early
Sunday and be primarily Bora-driven as a robust cold front descends
into the area. This system will begin to increase snowfall chances
in our high country by Saturday evening and, if moisture can
survive, potentially bring some light snow to our lower elevations
as well overnight and into Sunday (~60% chance). Depending on how
much moisture we can hold on to under the northwest flow aloft,
mountain snow could linger into Monday. Temperatures will cool down
considerably for Sunday, but a warming trend will return quickly for
Monday with rapid warming anticipated through next week.

&&

.AVIATION /18Z TAFS through 18Z Thursday/...
Issued at 1146 AM MDT Wed Mar 11 2026

VFR to prevail through tonight and Thursday. Winds will continue
to follow an anticyclonic pattern through 00Z Thursday with NE to
E winds at DEN, E to SE winds at APA, and SE winds at BJC. The
winds slowly turn E to SE at DEN, likely ending up southeast
around 00Z. Southerly winds then prevail overnight at the Denver
airports.

For Thursday, channels of gusty west winds are expected to develop
late morning and early afternoon (16-19Z). The threat for gusty
winds (35 knot gusts) will be mainly after 18Z at DEN, but a slight
chance (20-30%) the gustier winds arrive earlier. Along the edges of
the wind channels, rotors/eddies are expected to form, so winds may
end up variable at times if one of these rotors/eddies moves over.

&&

.FIRE WEATHER...
Issued at 1155 PM MDT Tue Mar 10 2026

Wednesday will bring warmer and drier conditions with humidity
lowering to near or slightly below 15% across the plains. There's
potential for efficient mixing to lead to a window or breezier
northwest winds gusting 25-35 mph for the northeast plains this
afternoon, though some weakening is likely as the afternoon
progresses. Patchy critical conditions are thus possible for parts
of our plains today, but confidence in their spatial extent or
duration is not high enough for any headlines.

On Thursday, a strong mountain wave will develop and produce
westerly wind gusts in excess of 80 mph across much of the
foothills, with potential for localized gusts of 60-80 mph for
immediately adjacent lower elevations, where humidity will fall to
near 15%. Critical fire weather conditions will extend into the
plains with gusts above 35-45 mph expected. Overnight recoveries
will be poor along the base of the foothills Thursday night.

Critical conditions will continue Friday, with some moderation in
peak winds, but still retaining some gusts above 30-45 mph for
parts of the plains, urban corridor and lower foothills where
humidity will again be low.

Another wind event is anticipated Saturday with potential for
stronger gusts and mountain wave development, before a potent
front brings a surge of strong winds late in the day. Dry daytime
conditions will be in place leading to widespread critical fire
weather.

&&

.BOU WATCHES/WARNINGS/ADVISORIES...
High Wind Watch from late tonight through late Thursday night
for COZ033>036.

High Wind Watch from Thursday morning through late Thursday
night for COZ038-039-042.

Fire Weather Watch from Thursday morning through late Thursday
night for COZ238-239.

Fire Weather Watch from Thursday morning through Thursday
evening for COZ240-242>245-248>251.

&&

DISCUSSION...BRQ
AVIATION...12
FIRE WEATHER...BRQ

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
458 AM MDT Wed Mar 11 2026

COZ030>051-121100-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
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-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
458 AM MDT Wed Mar 11 2026

...HIGH WIND WATCH FOR THE FRONT RANGE MOUNTAINS, FOOTHILLS, AND
NEARBY ADJACENT PLAINS WEST OF I-25 AND NEAR THE WYOMING BORDER
STARTING LATE TONIGHT AND THURSDAY, LASTING THROUGH THURSDAY
NIGHT...
...FIRE WEATHER WATCH FOR THE NORTHEAST PLAINS AND I-25
URBAN CORRIDOR STARTING THURSDAY...

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Today will feature gusty winds to around 35 mph and elevated fire
weather conditons over the northeast plains.

Winds will start to increase over the higher Front Range Mountains
and Foothills late tonight, and strengthen into Thursday morning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A prolonged period of significant fire weather conditions is
shaping up for Thursday through Saturday as winds strengthen and
humidities drop. Thursday will feature a potential of high winds
with gusts greater than 60-70 mph near the base of the foothills
and along Wyoming border, and up to 80-90 mph in some of the
foothills and mountains of western Boulder and Larimer Counties.

Friday will likely see critical fire weather conditions again, but
a slight reprieve in the magnitude of winds. Another round of
widespread critical fire weather conditions will be likely again
on Saturday as winds strengthen again in an unseasonably warm and
dry airmass.

A cold front will bring a chance of snow by Saturday night and
Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.