Alert archive / Colorado / High Wind Warnings in 2025
High Wind Warning 9, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this high wind warning at Dec 16, 2025, 1:51 AM MST for 19 counties in Colorado. It took effect at Dec 17, 2025, 8:00 AM MST. It was in force for 28 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 16, 2025, 1:51 AM MST (08:51 UTC)
- In effect from
- Dec 17, 2025, 8:00 AM MST
- Expired
- Dec 18, 2025, 12:00 PM MST
- In force
- 28 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Park County, CO, Phillips County, CO, Sedgwick County, CO, Summit County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 25 km from the middle of the area, began a volume at 08:53 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 17, 9:14 AM MST | NON-TSTM WND GST 68 | 3 Se Tolland, CO | AWOS station KC99 Dakota Hill. |
| Dec 17, 10:01 AM MST | NON-TSTM WND GST 64 | 2 W Mishawaka, CO | Mesonet station GW4629 LIVERMORE. |
| Dec 17, 10:15 AM MST | NON-TSTM WND GST 60 | Nederland, CO | Mesonet station DVI07801 Nederland. |
| Dec 17, 10:20 AM MST | NON-TSTM WND GST 68 | 4 Ene Nederland, CO | Mesonet station DW5338 Nederland. |
| Dec 17, 11:00 AM MST | NON-TSTM WND GST 63 | 2 Nne Bailey, CO | Mesonet station GW6466 BAILEY. |
| Dec 17, 11:32 AM MST | NON-TSTM WND GST 62 | Red Feather Lakes, CO | Mesonet station RFRC2 Red Feather RAWS. |
| Dec 17, 11:45 AM MST | NON-TSTM WND GST 60 | 4 Ese Estes Park, CO | Mesonet station DW0774 Estes Park. |
| Dec 17, 12:31 PM MST | NON-TSTM WND GST 63 | 4 Ssw Lyons, CO | Mesonet station TT789 Heil Ranch. |
| Dec 17, 12:31 PM MST | NON-TSTM WND GST 80 | 3 Sw Rocky Flats, CO | Mesonet station CO109 Rocky Flats Hwy 93 and 72. |
| Dec 17, 12:35 PM MST | NON-TSTM WND GST 60 | 3 Ese Buckeye, CO | Mesonet station BEYC2 Buckeye. |
| Dec 17, 12:40 PM MST | NON-TSTM WND GST 70 | 4 Nnw White Ranch Open, CO | Mesonet station 1925W Coal Creek Canyon. |
| Dec 17, 12:42 PM MST | NON-TSTM WND GST 60 | 3 W Lyons, CO | Mesonet station BCFC2 Boulder County Fire Qd1. |
| Dec 17, 12:49 PM MST | NON-TSTM WND GST 73 | 2 Nw Rocky Flats, CO | NLR Flatirons Campus (M2). |
| Dec 17, 12:55 PM MST | NON-TSTM WND GST 61 | 3 Nw Livermore, CO | CoAgMet station CKP01 Cherokee Park. |
| Dec 17, 12:55 PM MST | NON-TSTM WND GST 62 | 1 Ene Berthoud Pass, CO | AWOS station K0CO Berthoud Pass. |
| Dec 17, 12:55 PM MST | NON-TSTM WND GST 86 | 1 Ne Crisman, CO | Mesonet station EW4338 1 NE Crisman. |
| Dec 17, 12:58 PM MST | NON-TSTM WND GST 91 | 3 Nw Marshall, CO | NCAR Mesa Lab. Estimated from Gill Wind sensor. |
| Dec 17, 1:00 PM MST | NON-TSTM WND GST 57 | 1 Nne Boulder, CO | NCAR Foothills Lab. |
| Dec 17, 1:06 PM MST | NON-TSTM WND GST 61 | 2 Nw Masonville, CO | |
| Dec 17, 1:11 PM MST | NON-TSTM WND GST 62 | 6 Sw Carr, CO | Mesonet station CO166 I-25 and Buckeye Rd. |
| Dec 17, 1:15 PM MST | NON-TSTM WND GST 68 | 3 Nw Boulder, CO | Mesonet station BLD02 Boulder North West. |
| Dec 17, 1:17 PM MST | NON-TSTM WND GST 75 | 1 S Boulder, CO | |
| Dec 17, 1:20 PM MST | NON-TSTM WND GST 68 | 1 Nne Boulder, CO | NCAR Foothills Lab. |
| Dec 17, 1:20 PM MST | NON-TSTM WND GST 87 | 1 Ne Crisman, CO | Mesonet station EW4338 1 NE Crisman. |
| Dec 17, 1:23 PM MST | NON-TSTM WND GST 62 | 2 Nne Natural Fort, CO | Mesonet station CO041 I-25 at Wyoming Border. |
| Dec 17, 1:28 PM MST | NON-TSTM WND GST 62 | 3 Ne Boulder, CO | Mesonet station DW0417 Boulder. |
| Dec 17, 1:30 PM MST | NON-TSTM WND GST 62 | 2 Nw Masonville, CO | |
| Dec 17, 1:30 PM MST | NON-TSTM WND GST 69 | 3 E Pinewood Springs, CO | Mesonet station GW0895 Lyons. |
| Dec 17, 1:31 PM MST | NON-TSTM WND GST 58 | 3 Wnw Aspen Park, CO | Mesonet station GW3026 CONIFER. |
| Dec 17, 1:31 PM MST | NON-TSTM WND GST 72 | 4 Ssw Lyons, CO | Mesonet station TT789 Heil Ranch. |
| Dec 17, 1:34 PM MST | NON-TSTM WND GST 64 | 2 Ssw Boulder, CO | Mesonet station CO040 Boulder US 36/Baseline Rd. |
| Dec 17, 1:35 PM MST | NON-TSTM WND GST 87 | 1 Ene Boulder, CO | AWOS station KBDU Boulder. |
| Dec 17, 1:39 PM MST | NON-TSTM WND GST 88 | 4 Ssw Rocky Flats, CO | Mesonet station TT867 Arvada. |
| Dec 17, 1:45 PM MST | NON-TSTM WND DMG | 2 Sw Boulder, CO | Large tree down. |
| Dec 17, 1:47 PM MST | NON-TSTM WND GST 96 | 3 Nw Marshall, CO | NCAR Mesa Lab. Time and wind magnitude estimated from Gill Wind sensor. |
| Dec 17, 1:50 PM MST | NON-TSTM WND GST 81 | 2 Nw Rocky Flats, CO | NLR Flatirons Campus (M2). |
| Dec 17, 1:54 PM MST | NON-TSTM WND GST 93 | 4 Ssw Rocky Flats, CO | Mesonet station TT867 Arvada. |
| Dec 17, 1:58 PM MST | NON-TSTM WND GST 71 | 2 Wnw Brookvale, CO | Mesonet station CEKC2 Corral Creek. |
| Dec 17, 2:05 PM MST | NON-TSTM WND GST 69 | 3 E Pinewood Springs, CO | Mesonet station GW0895 Lyons. |
| Dec 17, 2:06 PM MST | NON-TSTM WND GST 64 | 1 Se Pine Grove, CO | |
| Dec 17, 2:09 PM MST | NON-TSTM WND GST 87 | 2 Nw Rocky Flats, CO | NRL Flatirons Campus (M2). |
| Dec 17, 2:13 PM MST | NON-TSTM WND GST 97 | 3 Sw Rocky Flats, CO | Mesonet station CO109 Rocky Flats Hwy 93 and 72. |
| Dec 17, 2:13 PM MST | NON-TSTM WND DMG | 1 Ssw Conifer, CO | One lodgepole pine snapped off 10 feet off ground. Estimated to be 80 feet tall. |
| Dec 17, 2:22 PM MST | NON-TSTM WND GST 74 | 3 S Pine Grove, CO | Mesonet station BAWC2 Bailey. |
| Dec 17, 2:23 PM MST | NON-TSTM WND GST 73 | 2 S Cheesman Reservoir, CO | Mesonet station CHRC2 Cheesman. |
| Dec 17, 2:39 PM MST | NON-TSTM WND GST 68 | 5 S Lyons, CO | Mesonet station EW8833 Longmont. |
| Dec 17, 2:49 PM MST | NON-TSTM WND GST 74 | Floyd Hill, CO | Mesonet station CO071 I-70 Floyd Hill. |
| Dec 17, 2:54 PM MST | NON-TSTM WND GST 62 | 2 N Mead, CO | Mesonet station CO165 I-25 Berthoud Hill. |
| Dec 17, 2:55 PM MST | NON-TSTM WND GST 80 | 3 S Boulder, CO | |
| Dec 17, 3:00 PM MST | NON-TSTM WND GST 67 | Aspen Springs, CO | Mesonet station CW5066 Aspen Springs. |
| Dec 17, 3:05 PM MST | NON-TSTM WND GST 61 | 1 Nnw Boulder, CO | Mesonet station FW9328 Boulder. |
| Dec 17, 3:06 PM MST | NON-TSTM WND GST 60 | 1 S Greenland, CO | Mesonet station CO193 Greenland. |
| Dec 17, 3:14 PM MST | NON-TSTM WND GST 63 | Virginia Dale, CO | Mesonet station CO036 Virginia Dale. |
| Dec 17, 3:21 PM MST | NON-TSTM WND GST 93 | 1 Ne Crisman, CO | Mesonet station EW4338 1 NE Crisman. |
| Dec 17, 3:23 PM MST | NON-TSTM WND GST 69 | 3 Ese Pinecliffe, CO | Mesonet station FW8937 Wondervu. |
| Dec 17, 3:25 PM MST | NON-TSTM WND GST 64 | 2 S Crisman, CO | Mesonet station BTAC2 Sugarloaf. |
| Dec 17, 3:30 PM MST | NON-TSTM WND GST 70 | 2 S Winter Park, CO | Mesonet station DDWPE Wp Eagle Wind. |
| Dec 17, 3:30 PM MST | NON-TSTM WND GST 109 | 3 Nw Marshall, CO | NCAR Mesa Lab. Time and wind magnitude estimated from Gill wind sensor. |
| Dec 17, 3:30 PM MST | NON-TSTM WND GST 109 | 3 Nw Marshall, CO | Updates previous peak non-tstm wnd gust report from NCAR Mesa Lab. Time and wind magnitude estimated from Gill Wind sensor. |
| Dec 17, 3:31 PM MST | NON-TSTM WND GST 78 | 4 Ssw Lyons, CO | Mesonet station TT789 Heil Ranch. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Grand Junction, CO (KGJT), launched 00:00Z, 8.9 hours before the alert went out and 344 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2731 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
694 WWUS75 KBOU 160851 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 151 AM MST Tue Dec 16 2025 COZ033-034-162200- /O.UPG.KBOU.HW.A.0006.251217T1800Z-251218T0700Z/ /O.NEW.KBOU.HW.W.0009.251217T1800Z-251218T1200Z/ 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- Including the cities of Rabbit Ears Range, Willow Creek Pass, Indian Peaks, Eisenhower Tunnel, East Slopes Mosquito Range, Rocky Mountain National Park, Williams Fork Mountains, Breckenridge, Mount Blue Sky, Winter Park, East Slopes Southern Gore Range, Kenosha Mountains, Laramie and Medicine Bow Mountains, Cameron Pass, and Berthoud Pass 151 AM MST Tue Dec 16 2025 ...HIGH WIND WARNING IN EFFECT FROM 11 AM WEDNESDAY TO 5 AM MST THURSDAY... * WHAT...West winds 30 to 40 mph with gusts up to 80 mph expected. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...From 11 AM Wednesday to 5 AM MST Thursday. Strongest winds expected Wednesday evening through Wednesday night. * IMPACTS...Damaging winds may blow down trees and power lines, with power outages 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. && $$ COZ035-036-038-039-162200- /O.UPG.KBOU.HW.A.0006.251217T1800Z-251218T0700Z/ /O.NEW.KBOU.HW.W.0009.251217T1800Z-251218T0700Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet-Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet-Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Glendevey, Golden, Central City, Nederland, Lakewood, Georgetown, Longmont, Evergreen, Estes Park, Hereford, Boulder, Bailey, Red Feather Lakes, Arvada, Loveland, Idaho Springs, Westcreek, Nunn, and Fort Collins 151 AM MST Tue Dec 16 2025 ...HIGH WIND WARNING IN EFFECT FROM 11 AM WEDNESDAY TO MIDNIGHT MST WEDNESDAY NIGHT... * WHAT...West winds 30 to 40 mph with gusts 65 to 85 mph expected. * WHERE...The Northern Front Range Foothills, The Southern Front Range Foothills, Fort Collins, Longmont, Boulder and the western suburbs of Denver. Strongest winds will be west of I-25 and north of I-70. * WHEN...From 11 AM Wednesday to midnight MST Wednesday Night. Strongest winds expected Wednesday afternoon. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Strong winds will likely lead to rapid fire growth of any new fire. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Avoid outdoor burning or any activity that may cause sparks. The strong winds will likely fuel rapid fire growth. && $$ COZ042-044-048-162200- /O.NEW.KBOU.HW.A.0007.251218T0000Z-251218T0700Z/ Northeast Weld County-Morgan County-Logan County- Including the cities of Grover, Peetz, Sterling, Wiggins, Stoneham, Raymer, Fort Morgan, Merino, Crook, Brush, Pawnee Buttes, Goodrich, and Briggsdale 151 AM MST Tue Dec 16 2025 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Briggsdale, Fort Morgan, and Sterling. * WHEN...From Wednesday afternoon through Wednesday evening. * IMPACTS...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. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ For more information from the National Weather Service, visit https://weather.gov/bou BRQ
10 follow-up statements
683 WWUS75 KBOU 162109 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 209 PM MST Tue Dec 16 2025 COZ033-034-171300- /O.EXT.KBOU.HW.W.0009.251217T1500Z-251218T1200Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Cameron Pass, East Slopes Mosquito Range, Kenosha Mountains, Williams Fork Mountains, Willow Creek Pass, Indian Peaks, Eisenhower Tunnel, East Slopes Southern Gore Range, Mount Blue Sky, Rabbit Ears Range, Laramie and Medicine Bow Mountains, Berthoud Pass, Rocky Mountain National Park, Winter Park, and Breckenridge 209 PM MST Tue Dec 16 2025 ...HIGH WIND WARNING NOW IN EFFECT FROM 8 AM WEDNESDAY TO 5 AM MST THURSDAY... * WHAT...West winds 30 to 50 mph with gusts up to 90 mph expected. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...From 8 AM Wednesday to 5 AM MST Thursday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. && $$ COZ035-036-171300- /O.EXT.KBOU.HW.W.0009.251217T1500Z-251218T1200Z/ 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 Bailey, Idaho Springs, Central City, Evergreen, Estes Park, Westcreek, Georgetown, Nederland, Red Feather Lakes, and Glendevey 209 PM MST Tue Dec 16 2025 ...HIGH WIND WARNING NOW IN EFFECT FROM 8 AM WEDNESDAY TO 5 AM MST THURSDAY... * WHAT...West winds 30 to 50 mph with gusts up to 90 mph expected. * WHERE...The Northern Front Range Foothills, and The Southern Front Range Foothills. * WHEN...From 8 AM Wednesday to 5 AM MST Thursday. * 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. && $$ COZ038-039-171300- /O.CON.KBOU.HW.W.0009.251217T1800Z-251218T0700Z/ Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Boulder, Arvada, Longmont, Fort Collins, Lakewood, Golden, Loveland, Hereford, and Nunn 209 PM MST Tue Dec 16 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 AM WEDNESDAY TO MIDNIGHT MST WEDNESDAY NIGHT... * WHAT...West winds 30 to 50 mph with gusts up to 80 mph expected. * WHERE...Fort Collins, and Boulder and the western suburbs of Denver. * WHEN...From 11 AM Wednesday to midnight MST Wednesday Night. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Strong winds will likely lead to rapid fire growth of any new fire. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Avoid outdoor burning or any activity that may cause sparks. The strong winds will likely fuel rapid fire growth. && $$ COZ042-044-048-171300- /O.CON.KBOU.HW.A.0007.251218T0000Z-251218T0700Z/ Northeast Weld County-Morgan County-Logan County- Including the cities of Stoneham, Goodrich, Peetz, Fort Morgan, Brush, Grover, Crook, Sterling, Briggsdale, Raymer, Merino, Wiggins, and Pawnee Buttes 209 PM MST Tue Dec 16 2025 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Briggsdale, Fort Morgan, and Sterling. * WHEN...From Wednesday afternoon through Wednesday evening. * IMPACTS...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. 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 41
268 WWUS75 KBOU 170408 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 908 PM MST Tue Dec 16 2025 COZ033>036-171215- /O.CON.KBOU.HW.W.0009.251217T1500Z-251218T1200Z/ 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 Rocky Mountain National Park, Berthoud Pass, Evergreen, Glendevey, Estes Park, Kenosha Mountains, Laramie and Medicine Bow Mountains, Mount Blue Sky, Nederland, Cameron Pass, East Slopes Southern Gore Range, Central City, Breckenridge, Eisenhower Tunnel, Williams Fork Mountains, Westcreek, Red Feather Lakes, Idaho Springs, Rabbit Ears Range, Willow Creek Pass, Winter Park, Georgetown, Bailey, Indian Peaks, and East Slopes Mosquito Range 908 PM MST Tue Dec 16 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM WEDNESDAY TO 5 AM MST THURSDAY... * WHAT...West winds 30 to 50 mph with gusts up to 90 mph expected, with the strongest winds on the crest and east facing slopes of the Front Range including wind prone locations of the foothills. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, the Mountains of Summit County, the Mosquito Range, the Indian Peaks, the Northern Front Range Foothills, and the Southern Front Range Foothills. * WHEN...From 8 AM Wednesday to 5 AM MST Thursday. * IMPACTS...Damaging winds may blow down trees and power lines, with power outages 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. && $$ COZ038-039-171215- /O.CON.KBOU.HW.W.0009.251217T1800Z-251218T0700Z/ Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Nunn, Fort Collins, Hereford, Arvada, Loveland, Longmont, Boulder, Lakewood, and Golden 908 PM MST Tue Dec 16 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 AM WEDNESDAY TO MIDNIGHT MST WEDNESDAY NIGHT... * WHAT...West winds 30 to 50 mph with gusts up to 80 mph expected. * WHERE...Fort Collins, Boulder, and the western suburbs of Denver. * WHEN...From 11 AM Wednesday to midnight MST Wednesday Night. Strongest winds expected Wednesday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles. Strong winds will likely lead to rapid fire growth of any new fire. 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. Avoid outdoor burning or any activity that may cause sparks. The strong winds will fuel rapid fire growth. && $$ COZ042-044-048-171215- /O.CON.KBOU.HW.A.0007.251218T0000Z-251218T0700Z/ Northeast Weld County-Morgan County-Logan County- Including the cities of Wiggins, Stoneham, Peetz, Merino, Goodrich, Crook, Sterling, Brush, Fort Morgan, Briggsdale, Raymer, Pawnee Buttes, and Grover 908 PM MST Tue Dec 16 2025 ...HIGH WIND WATCH REMAINS IN EFFECT WEDNESDAY EVENING... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Briggsdale, Fort Morgan, and Sterling. * WHEN...Wednesday evening. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 20
312 WWUS75 KBOU 170835 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 135 AM MST Wed Dec 17 2025 COZ042-044-048-180200- /O.UPG.KBOU.HW.A.0007.251218T0000Z-251218T0700Z/ /O.EXB.KBOU.HW.W.0009.251218T0000Z-251218T0700Z/ Northeast Weld County-Morgan County-Logan County- Including the cities of Stoneham, Fort Morgan, Peetz, Briggsdale, Goodrich, Raymer, Crook, Wiggins, Sterling, Grover, Pawnee Buttes, Merino, and Brush 135 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING IN EFFECT FOR THIS EVENING... * WHAT...Northwest winds 25 to 40 mph with gusts up to 65 mph possible. * WHERE...Briggsdale, Fort Morgan, and Sterling. * WHEN...From 5 PM this afternoon to midnight MST tonight. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. 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. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ COZ038-039-180200- /O.EXT.KBOU.HW.W.0009.251217T1800Z-251218T0200Z/ Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Boulder, Arvada, Hereford, Longmont, Golden, Nunn, Lakewood, Fort Collins, and Loveland 135 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING IN EFFECT FOR THIS AFTERNOON... * WHAT...West winds 30 to 50 mph with gusts 65 to 85 mph expected. * WHERE...Fort Collins, Longmont, Boulder, and the western suburbs of Denver. * WHEN...From 11 AM this morning to 7 PM MST this evening. * IMPACTS...Damaging winds may blow down trees and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles. Strong winds will lead to rapid fire growth of any new fire. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Avoid outdoor burning or any activity that may cause sparks. The strong winds will fuel rapid fire growth. && $$ COZ033>036-180200- /O.CON.KBOU.HW.W.0009.251217T1500Z-251218T1200Z/ 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 Bailey, Mount Blue Sky, Eisenhower Tunnel, Nederland, Evergreen, Laramie and Medicine Bow Mountains, Winter Park, Cameron Pass, Idaho Springs, Estes Park, East Slopes Mosquito Range, Central City, Willow Creek Pass, Westcreek, Breckenridge, Red Feather Lakes, Glendevey, Rabbit Ears Range, Rocky Mountain National Park, Berthoud Pass, Indian Peaks, East Slopes Southern Gore Range, Kenosha Mountains, Georgetown, and Williams Fork Mountains 135 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 5 AM MST THURSDAY... * WHAT...West winds 30 to 50 mph with gusts up to 90 mph expected, with the strongest winds focused over wind-prone locations in the foothills. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, the Mountains of Summit County, the Mosquito Range, the Indian Peaks, and the foothills. * WHEN...From 8 AM this morning to 5 AM MST Thursday. * IMPACTS...Damaging winds may blow down trees and power lines, with power outages possible. Travel will be difficult, especially for high profile vehicles. Strong winds may lead to rapid fire growth of any new fire in the lower foothills. 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. Avoid outdoor burning or any activity that may cause sparks. The strong winds may fuel rapid fire growth in areas free of snow cover. && $$ COZ050-051-180200- /O.NEW.KBOU.HW.A.0008.251218T1200Z-251219T0000Z/ Sedgwick County-Phillips County- Including the cities of Amherst, Holyoke, Julesburg, Haxtun, Ovid, and Sedgwick 135 AM MST Wed Dec 17 2025 ...HIGH WIND WATCH IN EFFECT THURSDAY MORNING AND AFTERNOON... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Sedgwick and Phillips Counties, including Julesburg and Holyoke. * WHEN...5 AM Thursday through 5 PM Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ For more information from the National Weather Service, visit https://weather.gov/bou BRQ
487 WWUS75 KBOU 171725 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 1025 AM MST Wed Dec 17 2025 COZ049-180215- /O.EXA.KBOU.HW.W.0009.251218T0000Z-251218T0700Z/ Washington County- Including the cities of Akron, Cope, Last Chance, and Otis 1025 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO MIDNIGHT MST TONIGHT... * WHAT...Northwest winds 25 to 40 mph with gusts up to 65 mph possible. * WHERE...Akron. * WHEN...From 5 PM this afternoon to midnight MST tonight. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. 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. && $$ COZ033>036-180215- /O.CON.KBOU.HW.W.0009.000000T0000Z-251218T1200Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including the cities of Cameron Pass, Eisenhower Tunnel, Georgetown, Estes Park, Glendevey, Breckenridge, Williams Fork Mountains, Westcreek, Berthoud Pass, Laramie and Medicine Bow Mountains, Red Feather Lakes, Winter Park, Rocky Mountain National Park, Central City, Indian Peaks, Bailey, East Slopes Mosquito Range, Nederland, Mount Blue Sky, Willow Creek Pass, Idaho Springs, Evergreen, Rabbit Ears Range, Kenosha Mountains, and East Slopes Southern Gore Range 1025 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...West winds 30 to 50 mph with gusts up to 90 mph expected, with the strongest winds focused over wind-prone locations in the foothills. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, the Mountains of Summit County, the Mosquito Range, the Indian Peaks, and the foothills. * WHEN...From 11 AM Wednesday to 5 AM MST Thursday. Strongest winds expected Wednesday evening through Wednesday night. * IMPACTS...Damaging winds may blow down trees and power lines, with power outages possible. Travel will be difficult, especially for high profile vehicles. Strong winds may lead to rapid fire growth of any new fire in the lower foothills. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. && $$ COZ038-039-180200- /O.CON.KBOU.HW.W.0009.251217T1800Z-251218T0200Z/ Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Golden, Arvada, Fort Collins, Lakewood, Loveland, Longmont, Hereford, Nunn, and Boulder 1025 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING... * WHAT...West winds 30 to 50 mph with gusts 65 to 85 mph expected. * WHERE...Fort Collins, Longmont, Boulder, and the western suburbs of Denver. * WHEN...Until 7 PM MST this evening. * IMPACTS...Damaging winds may blow down trees and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles. Strong winds will lead to rapid fire growth of any new fire. 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. Avoid outdoor burning or any activity that may cause sparks. The strong winds will likely fuel rapid fire growth. && $$ COZ042-044-048-180215- /O.CON.KBOU.HW.W.0009.251218T0000Z-251218T0700Z/ Northeast Weld County-Morgan County-Logan County- Including the cities of Grover, Raymer, Stoneham, Sterling, Crook, Pawnee Buttes, Merino, Peetz, Fort Morgan, Briggsdale, Wiggins, Brush, and Goodrich 1025 AM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO MIDNIGHT MST TONIGHT... * WHAT...Northwest winds 25 to 40 mph with gusts up to 65 mph possible. * WHERE...Briggsdale, Fort Morgan, and Sterling. * WHEN...From 5 PM this afternoon to midnight MST tonight. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. && $$ COZ050-051-180215- /O.CON.KBOU.HW.A.0008.251218T1200Z-251219T0000Z/ Sedgwick County-Phillips County- Including the cities of Ovid, Holyoke, Haxtun, Amherst, Sedgwick, and Julesburg 1025 AM MST Wed Dec 17 2025 ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Sedgwick and Phillips Counties, including Julesburg and Holyoke. * WHEN...5 AM Thursday through 5 PM Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 41
216 WWUS75 KBOU 172126 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 226 PM MST Wed Dec 17 2025 COZ050-051-180215- /O.UPG.KBOU.HW.A.0008.251218T1200Z-251219T0000Z/ /O.EXB.KBOU.HW.W.0009.251218T1200Z-251218T1900Z/ Sedgwick County-Phillips County- Including the cities of Ovid, Holyoke, Haxtun, Amherst, Sedgwick, and Julesburg 226 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING IN EFFECT FROM 5 AM TO NOON MST THURSDAY... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Sedgwick and Phillips Counties, including Julesburg and Holyoke. * WHEN...From 5 AM to noon MST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. && $$ COZ033>036-180215- /O.NEW.KBOU.HW.A.0009.251219T0400Z-251220T0000Z/ /O.CON.KBOU.HW.W.0009.000000T0000Z-251218T1200Z/ 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 Cameron Pass, Eisenhower Tunnel, Georgetown, Estes Park, Glendevey, Breckenridge, Williams Fork Mountains, Westcreek, Berthoud Pass, Laramie and Medicine Bow Mountains, Red Feather Lakes, Winter Park, Rocky Mountain National Park, Central City, Indian Peaks, Bailey, East Slopes Mosquito Range, Nederland, Mount Blue Sky, Willow Creek Pass, Idaho Springs, Evergreen, Rabbit Ears Range, Kenosha Mountains, and East Slopes Southern Gore Range 226 PM MST Wed Dec 17 2025 ...HIGH WIND WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY AFTERNOON... ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...For the High Wind Warning, west winds 30 to 50 mph with gusts up to 90 mph expected, with the strongest winds focused over wind-prone locations in the foothills. For the High Wind Watch, west winds up 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 foothills. * WHEN...For the High Wind Warning, until 5 AM MST Thursday. For the High Wind Watch, from Thursday evening through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines, with power outages possible. Travel will be difficult, especially for high profile vehicles. Strong winds may lead to rapid fire growth of any new fire in the lower foothills. 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. Avoid outdoor burning or any activity that may cause sparks. The strong winds may fuel rapid fire growth in areas free of snow cover. && $$ COZ038-039-180215- /O.NEW.KBOU.HW.A.0009.251219T1800Z-251220T0000Z/ /O.CON.KBOU.HW.W.0009.000000T0000Z-251218T0200Z/ Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Golden, Arvada, Fort Collins, Lakewood, Loveland, Longmont, Hereford, Nunn, and Boulder 226 PM MST Wed Dec 17 2025 ...HIGH WIND WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING... * WHAT...For the High Wind Warning, west winds 30 to 50 mph with gusts 65 to 85 mph expected. For the High Wind Watch, west winds up to 50 mph with gusts up to 80 mph possible. * WHERE...Fort Collins, Longmont, Boulder, and the western suburbs of Denver. * WHEN...For the High Wind Warning, until 7 PM MST this evening. For the High Wind Watch, from Friday morning through Friday afternoon. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. Strong winds will likely lead to rapid fire growth of any new fire. Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Avoid outdoor burning or any activity that may cause sparks. The strong winds will likely fuel rapid fire growth. Monitor the latest forecasts and warnings for updates. && $$ COZ042-044-048-049-180215- /O.CON.KBOU.HW.W.0009.251218T0000Z-251218T0700Z/ Northeast Weld County-Morgan County-Logan County-Washington County- Including the cities of Grover, Raymer, Stoneham, Sterling, Crook, Pawnee Buttes, Merino, Peetz, Fort Morgan, Last Chance, Briggsdale, Cope, Wiggins, Akron, Brush, Otis, and Goodrich 226 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... * WHAT...Northwest winds 25 to 40 mph with gusts up to 65 mph possible. * WHERE...Briggsdale, Fort Morgan, Sterling, and Akron. * WHEN...Until midnight MST tonight. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. 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. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 41
731 WWUS75 KBOU 180157 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 657 PM MST Wed Dec 17 2025 COZ038-181300- /O.EXP.KBOU.HW.W.0009.000000T0000Z-251218T0200Z/ /O.NEW.KBOU.HW.W.0010.251218T0200Z-251218T0700Z/ /O.CON.KBOU.HW.A.0009.251219T1800Z-251220T0000Z/ Larimer County Below 6000 Feet/Northwest Weld County- Including the cities of Hereford, Fort Collins, Nunn, and Loveland 657 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT... ...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... * WHAT...For the High Wind Warning, northwest winds 20 to 35 mph with gusts up to 60 mph expected. For the High Wind Watch, west winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Fort Collins. * WHEN...For the High Wind Warning, until midnight MST tonight. For the High Wind Watch, from Friday morning through Friday afternoon. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Monitor the latest forecasts and warnings for updates. && $$ COZ039-181300- /O.EXP.KBOU.HW.W.0009.000000T0000Z-251218T0200Z/ /O.CON.KBOU.HW.A.0009.251219T1800Z-251220T0000Z/ Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Arvada, Golden, Lakewood, Boulder, and Longmont 657 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING WILL EXPIRE AT 7 PM MST THIS EVENING... ...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... * WHAT...West winds 25 to 40 mph with gusts up to 75 mph possible. * WHERE...Boulder and the western suburbs of Denver. * WHEN...From Friday morning through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles. Strong winds will lead to rapid fire growth of any new fire. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ COZ046-180700- /O.EXB.KBOU.HW.W.0009.251218T0200Z-251218T0700Z/ North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Limon, Agate, Hugo, and Matheson 657 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Limon. * WHEN...Until midnight MST tonight. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Blowing dust will reduce visibility to less than a quarter mile in places. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. && $$ COZ033>036-181300- /O.CON.KBOU.HW.W.0009.000000T0000Z-251218T1200Z/ /O.CON.KBOU.HW.A.0009.251219T0400Z-251220T0000Z/ 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 East Slopes Southern Gore Range, East Slopes Mosquito Range, Georgetown, Idaho Springs, Williams Fork Mountains, Indian Peaks, Winter Park, Red Feather Lakes, Estes Park, Kenosha Mountains, Central City, Laramie and Medicine Bow Mountains, Evergreen, Nederland, Westcreek, Rocky Mountain National Park, Mount Blue Sky, Cameron Pass, Breckenridge, Berthoud Pass, Willow Creek Pass, Bailey, Rabbit Ears Range, Eisenhower Tunnel, and Glendevey 657 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... ...HIGH WIND WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY AFTERNOON... * WHAT...For the High Wind Warning, west winds 30 to 40 mph with gusts up to 100 mph or more above timberline. Gusts up to 80 mph in the foothills. For the High Wind Watch, west winds 30 to 40 mph with gusts up to 100 mph possible. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, The Northern Front Range Foothills, and The Southern Front Range Foothills. * WHEN...For the High Wind Warning, until 5 AM MST Thursday. For the High Wind Watch, from Thursday evening through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines, with power outages possible. Travel will be difficult, especially for high profile vehicles. Strong winds may lead to rapid fire growth of any new fire in the lower foothills. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Monitor the latest forecasts and warnings for updates. && $$ COZ042-044-048-049-180700- /O.CON.KBOU.HW.W.0009.000000T0000Z-251218T0700Z/ Northeast Weld County-Morgan County-Logan County-Washington County- Including the cities of Briggsdale, Stoneham, Merino, Otis, Goodrich, Raymer, Last Chance, Pawnee Buttes, Akron, Crook, Brush, Sterling, Grover, Cope, Wiggins, Peetz, and Fort Morgan 657 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... * WHAT...Northwest winds 25 to 40 mph with gusts up to 65 mph possible. * WHERE...Briggsdale, Fort Morgan, Sterling, and Akron. * WHEN...Until midnight MST tonight. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ COZ050-051-181300- /O.CON.KBOU.HW.W.0009.251218T1200Z-251218T1900Z/ Sedgwick County-Phillips County- Including the cities of Haxtun, Amherst, Sedgwick, Holyoke, Ovid, and Julesburg 657 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 5 AM TO NOON MST THURSDAY... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph. * WHERE...Sedgwick and Phillips Counties, including Julesburg and Holyoke. * WHEN...From 5 AM to noon MST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. 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. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 22
918 WWUS75 KBOU 180655 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 1155 PM MST Wed Dec 17 2025 COZ038-181400- /O.EXP.KBOU.HW.W.0010.000000T0000Z-251218T0700Z/ /O.CON.KBOU.HW.A.0009.251219T1800Z-251220T0000Z/ Larimer County Below 6000 Feet/Northwest Weld County- Including the cities of Loveland, Nunn, Fort Collins, and Hereford 1155 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT... ...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts greater than 60 mph possible. * WHERE...Fort Collins. * WHEN...From Friday morning through Friday afternoon. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ COZ042-044-046-048-049-180800- /O.EXP.KBOU.HW.W.0009.000000T0000Z-251218T0700Z/ Northeast Weld County-Morgan County-North and Northeast Elbert County Below 6000 Feet/North Lincoln County-Logan County- Washington County- Including the cities of Agate, Pawnee Buttes, Fort Morgan, Limon, Matheson, Last Chance, Stoneham, Otis, Wiggins, Grover, Peetz, Hugo, Brush, Sterling, Crook, Akron, Goodrich, Raymer, Merino, Cope, and Briggsdale 1155 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT... Winds have decreased slightly, but gusts of 40 to 50 mph can still be expected overnight. $$ COZ033>036-181400- /O.CON.KBOU.HW.W.0009.000000T0000Z-251218T1200Z/ /O.CON.KBOU.HW.A.0009.251219T0400Z-251220T0000Z/ 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 Breckenridge, East Slopes Mosquito Range, Kenosha Mountains, Glendevey, Westcreek, Rocky Mountain National Park, Winter Park, Red Feather Lakes, Williams Fork Mountains, Willow Creek Pass, Nederland, Eisenhower Tunnel, Laramie and Medicine Bow Mountains, Cameron Pass, Evergreen, Estes Park, Bailey, Rabbit Ears Range, Central City, Idaho Springs, Berthoud Pass, Georgetown, Mount Blue Sky, Indian Peaks, and East Slopes Southern Gore Range 1155 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... ...HIGH WIND WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY AFTERNOON... * WHAT...For the High Wind Warning, west winds 30 to 40 mph with gusts up to 100 mph or more above timberline. Gusts up to 80 mph in the foothills. For the High Wind Watch, west winds 30 to 40 mph with gusts up to 100 mph possible. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, The Northern Front Range Foothills, and The Southern Front Range Foothills. * WHEN...For the High Wind Warning, until 5 AM MST Thursday. For the High Wind Watch, from Thursday evening through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines, with power outages possible. Travel will be difficult, especially for high profile vehicles. Strong winds may lead to rapid fire growth of any new fire in the lower foothills. 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. Avoid outdoor burning or any activity that may cause sparks. The strong winds may fuel rapid fire growth in areas free of snow cover. && $$ COZ050-051-181400- /O.CON.KBOU.HW.W.0009.251218T1200Z-251218T1900Z/ Sedgwick County-Phillips County- Including the cities of Haxtun, Julesburg, Ovid, Holyoke, Amherst, and Sedgwick 1155 PM MST Wed Dec 17 2025 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 5 AM TO NOON MST THURSDAY... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph. * WHERE...Julesburg, and Holyoke. * WHEN...From 5 AM to noon MST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. 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. && $$ COZ039-181400- /O.CON.KBOU.HW.A.0009.251219T1800Z-251220T0000Z/ Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Golden, Boulder, Longmont, Arvada, and Lakewood 1155 PM MST Wed Dec 17 2025 ...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... * WHAT...West winds 25 to 40 mph with gusts up to 75 mph possible. * WHERE...Boulder and the western suburbs of Denver. * WHEN...From Friday morning through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines. Scattered power outages are possible. Travel will be difficult, especially for high profile vehicles. Strong winds will lead to rapid fire growth of any new fire. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 20
898 WWUS75 KBOU 180951 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 251 AM MST Thu Dec 18 2025 COZ035-036-182200- /O.CAN.KBOU.HW.W.0009.000000T0000Z-251218T1200Z/ /O.CON.KBOU.HW.A.0009.251219T0400Z-251220T0000Z/ 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 Red Feather Lakes, Westcreek, Georgetown, Estes Park, Evergreen, Idaho Springs, Bailey, Nederland, Central City, and Glendevey 251 AM MST Thu Dec 18 2025 ...HIGH WIND WARNING IS CANCELLED... ...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH FRIDAY AFTERNOON... * WHAT...West winds 35 to 45 mph with gusts up to 85 mph possible. * WHERE...The Northern Front Range Foothills, and The Southern Front Range Foothills. Strongest winds in the foothills of Boulder, Gilpin, Clear Creek and Jefferson Counties. * WHEN...From this evening through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines, with power outages possible. Travel will be difficult, especially for high profile vehicles. Strong winds may lead to rapid fire growth of any new fire in the lower foothills. 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. Avoid outdoor burning or any activity that may cause sparks. The strong winds may fuel rapid fire growth in areas free of snow cover. && $$ COZ033-034-182200- /O.EXT.KBOU.HW.W.0009.000000T0000Z-251218T1800Z/ /O.CON.KBOU.HW.A.0009.251219T0400Z-251220T0000Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Mount Blue Sky, Winter Park, East Slopes Southern Gore Range, East Slopes Mosquito Range, Indian Peaks, Laramie and Medicine Bow Mountains, Eisenhower Tunnel, Cameron Pass, Rabbit Ears Range, Willow Creek Pass, Kenosha Mountains, Williams Fork Mountains, Berthoud Pass, Breckenridge, and Rocky Mountain National Park 251 AM MST Thu Dec 18 2025 ...HIGH WIND WARNING NOW IN EFFECT UNTIL 11 AM MST THIS MORNING... ...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH FRIDAY AFTERNOON... * WHAT...For the High Wind Warning, west winds 35 to 45 mph with gusts up to 80 mph for both the High Wind Warning and High Wind Watch. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...For the High Wind Warning, until 11 AM MST this morning. For the High Wind Watch, from 9 PM MST this evening through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Monitor the latest forecasts and warnings for updates. && $$ COZ050-051-181900- /O.CON.KBOU.HW.W.0009.251218T1200Z-251218T1900Z/ Sedgwick County-Phillips County- Including the cities of Julesburg, Haxtun, Holyoke, Ovid, Amherst, and Sedgwick 251 AM MST Thu Dec 18 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... * WHAT...Northwest winds 25 to 35 mph with gusts up to 65 mph. * WHERE...Sedgwick and Phillips Counties, including Julesburg and Holyoke. * WHEN...Until noon MST today. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Travel will be difficult, especially for high profile vehicles. Strong winds may lead to rapid fire growth of any new fire. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. && $$ COZ038-039-182200- /O.CON.KBOU.HW.A.0009.251219T1800Z-251220T0000Z/ Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Boulder, Lakewood, Golden, Longmont, Hereford, Nunn, Fort Collins, Arvada, and Loveland 251 AM MST Thu Dec 18 2025 ...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... * WHAT...West winds 25 to 40 mph with gusts up to 85 mph, strongest near the base of the foothills. * WHERE...Fort Collins, and Boulder and the western suburbs of Denver. * WHEN...From Friday morning through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines. Scattered power outages are possible. Travel will be difficult, especially for high profile vehicles. Strong winds will lead to rapid fire growth of any new fire. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ For more information from the National Weather Service, visit https://weather.gov/bou BRQ
596 WWUS75 KBOU 181812 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 1112 AM MST Thu Dec 18 2025 COZ033-034-190215- /O.EXP.KBOU.HW.W.0009.000000T0000Z-251218T1800Z/ /O.CON.KBOU.HW.A.0009.251219T0400Z-251220T0000Z/ 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- Including the cities of Winter Park, Laramie and Medicine Bow Mountains, Kenosha Mountains, East Slopes Southern Gore Range, Eisenhower Tunnel, Mount Blue Sky, Breckenridge, Rocky Mountain National Park, Rabbit Ears Range, East Slopes Mosquito Range, Indian Peaks, Berthoud Pass, Williams Fork Mountains, Willow Creek Pass, and Cameron Pass 1112 AM MST Thu Dec 18 2025 ...HIGH WIND WARNING HAS EXPIRED... ...HIGH WIND WATCH REMAINS IN EFFECT FROM 9 PM MST THIS EVENING THROUGH FRIDAY AFTERNOON... * WHAT...For the High Wind Warning, west winds 35 to 45 mph with gusts up to 85 mph. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...From 9 PM MST this evening through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ COZ050-051-181915- /O.CON.KBOU.HW.W.0009.000000T0000Z-251218T1900Z/ Sedgwick County-Phillips County- Including the cities of Amherst, Julesburg, Holyoke, Haxtun, Sedgwick, and Ovid 1112 AM MST Thu Dec 18 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... * WHAT...Northwest winds 25 to 35 mph with gusts up to 65 mph. * WHERE...Sedgwick and Phillips Counties, including Julesburg and Holyoke. * WHEN...Until noon MST today. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Travel will be difficult, especially for high profile vehicles. Strong winds may lead to rapid fire growth of any new fire. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. && $$ COZ035-036-190215- /O.CON.KBOU.HW.A.0009.251219T0400Z-251220T0000Z/ 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 Evergreen, Georgetown, Estes Park, Bailey, Westcreek, Glendevey, Nederland, Red Feather Lakes, Idaho Springs, and Central City 1112 AM MST Thu Dec 18 2025 ...HIGH WIND WATCH REMAINS IN EFFECT FROM 9 PM MST THIS EVENING THROUGH FRIDAY AFTERNOON... * WHAT...West winds 35 to 45 mph with gusts up to 85 mph possible. * WHERE...The Northern Front Range Foothills, and The Southern Front Range Foothills. Strongest winds in the foothills of Boulder, Gilpin, Clear Creek and Jefferson Counties. * WHEN...From 9 PM MST this evening through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines, with power outages possible. Travel will be difficult, especially for high profile vehicles. Strong winds may lead to rapid fire growth of any new fire in the lower foothills. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ COZ038-039-190215- /O.CON.KBOU.HW.A.0009.251219T1800Z-251220T0000Z/ Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Fort Collins, Nunn, Golden, Loveland, Boulder, Longmont, Arvada, Lakewood, and Hereford 1112 AM MST Thu Dec 18 2025 ...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... * WHAT...West winds 25 to 40 mph with gusts up to 85 mph, strongest near the base of the foothills. * WHERE...Fort Collins, Longmont, Boulder, and the western suburbs of Denver. * WHEN...From Friday morning through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines. Scattered power outages are possible. Travel will be difficult, especially for high profile vehicles. Strong winds will lead to rapid fire growth of any new fire. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Avoid outdoor burning or any activity that may cause sparks. The strong winds may fuel rapid fire growth in areas free of snow cover. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Meier
329 WWUS75 KBOU 181911 NPWBOU URGENT - WEATHER MESSAGE National Weather Service Denver CO 1211 PM MST Thu Dec 18 2025 COZ050-051-182015- /O.EXP.KBOU.HW.W.0009.000000T0000Z-251218T1900Z/ Sedgwick County-Phillips County- Including the cities of Holyoke, Ovid, Julesburg, Haxtun, Amherst, and Sedgwick 1211 PM MST Thu Dec 18 2025 ...HIGH WIND WARNING HAS EXPIRED... Wind gusts are slowly diminishing across the area and will continue to decrease into the rest of the afternoon. A Red Flag Warning remains in effect until 5 PM MST. $$ COZ033>036-190315- /O.CON.KBOU.HW.A.0009.251219T0400Z-251220T0000Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including the cities of Indian Peaks, Evergreen, Breckenridge, Cameron Pass, Idaho Springs, Westcreek, East Slopes Southern Gore Range, Red Feather Lakes, Rabbit Ears Range, Bailey, Kenosha Mountains, Laramie and Medicine Bow Mountains, Central City, Estes Park, Winter Park, Willow Creek Pass, Mount Blue Sky, Williams Fork Mountains, Eisenhower Tunnel, Glendevey, Berthoud Pass, Nederland, Rocky Mountain National Park, East Slopes Mosquito Range, and Georgetown 1211 PM MST Thu Dec 18 2025 ...HIGH WIND WATCH REMAINS IN EFFECT FROM 9 PM MST THIS EVENING THROUGH FRIDAY AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 100 mph possible. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, The Mountains of Summit County, the Mosquito Range, and the Indian Peaks, The Northern Front Range Foothills, and The Southern Front Range Foothills. * WHEN...From 9 PM MST this evening through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines, with power outages possible. Travel will be difficult, especially for high profile vehicles. Strong winds may lead to rapid fire growth of any new fire in the lower foothills. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ COZ038-039-190315- /O.CON.KBOU.HW.A.0009.251219T1800Z-251220T0000Z/ Larimer County Below 6000 Feet/Northwest Weld County-Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Longmont, Hereford, Boulder, Lakewood, Nunn, Golden, Fort Collins, Loveland, and Arvada 1211 PM MST Thu Dec 18 2025 ...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... * WHAT...West winds 25 to 40 mph with gusts up to 85 mph, strongest near the base of the foothills. * WHERE...Fort Collins, Longmont, Boulder, and the western suburbs of Denver. * WHEN...From Friday morning through Friday afternoon. * IMPACTS...Damaging winds may blow down trees and power lines. Scattered power outages are possible. Travel will be difficult, especially for high profile vehicles. Strong winds will lead to rapid fire growth of any new fire. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Hiris
What forecasters said that day
The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Denver/Boulder, CO wrote its last area forecast discussion before this high wind warning went out at Dec 15, 10:29 PM MST, 3 hours 22 minutes earlier. Its key messages:
- Warm and dry through Tuesday, with breezy conditions tonight into Tuesday for the foothills and mountains.
- Remaining warm Wednesday with strong winds expected west of I-25. A High Wind Watch has been issued for Wednesday late morning through Wednesday evening.
- Near-critical to critical fire weather across portions of the foothills and plains on Wednesday. A Fire Weather Watch will be in effect from late Wednesday morning through early Wednesday evening.
- Friday may see critical fire weather conditions across portions of the plains and urban corridor.
- Light mountain snow potential Wednesday into Thursday and Friday into the weekend.
Area forecast discussion, Dec 15, 10:29 PM MST, 3 hours 22 minutes before
Area Forecast Discussion National Weather Service Denver/Boulder CO 1029 PM MST Mon Dec 15 2025 .KEY MESSAGES... - Warm and dry through Tuesday, with breezy conditions tonight into Tuesday for the foothills and mountains. - Remaining warm Wednesday with strong winds expected west of I-25. A High Wind Watch has been issued for Wednesday late morning through Wednesday evening. - Near-critical to critical fire weather across portions of the foothills and plains on Wednesday. A Fire Weather Watch will be in effect from late Wednesday morning through early Wednesday evening. - Friday may see critical fire weather conditions across portions of the plains and urban corridor. - Light mountain snow potential Wednesday into Thursday and Friday into the weekend. && .SHORT TERM /Through Monday/... Issued at 302 PM MST Mon Dec 15 2025 Current satellite imagery shows mostly clear skies across the forecast area. Temperatures are about 15 to 20+ degrees above normal on the plains, ranging between low and high 60s, with a few stations in the southern Denver metro reaching low 70s. We have officially tied our record high temperature for DIA (68 set in 1921), and won't be surprised if we are able to warm up another degree or two to break the record. Other than that, quiet conditions prevail for the mountains and plains this evening and tonight. It will be warm and mostly dry on Tuesday as upper level flow flattens due to a shortwave trekking south of Colorado. With increased flow aloft, expect breezy conditions along the high terrain and areas off the Cheyenne Ridge. Cross-sections do indicate moisture embedded in the flow, so can't rule out a snow shower in the northern mountains and an isolated light rain shower or two in the northern plains and foothills, particularly in the morning. For the rest of the day, downsloping winds will create elevated fire weather conditions (see Fire Weather Discussion below) and allow temperatures to rise into the mid-to-high 60s again. While unlikely, we do have the potential to break the max temperature (70 degrees set in 1980). && .LONG TERM /Tuesday night through Monday/... Issued at 302 PM MST Mon Dec 15 2025 Strong winds will return to the mountains and potentially the I-25 corridor on Wednesday. The mid and upper level flow will increase along the Front Range Wednesday morning and into the afternoon. Winds are forecast to peak Wednesday afternoon and evening with cross barrier flow around 60 to 70kts at mountain top. Wind gusts in the higher elevations could approach 90 mph at times Wednesday afternoon. The soundings from the global models are missing a critical layer and the inversion above ridge top is not at the ideal level for a downsloping event, both of which will hinder the winds ability to push eastward into the lower foothills and surrounding plains. However, some of the higher res models, like the RRFS, are starting to show both a critical layer and inversion, which helps increase our confidence that stronger winds could move further east into the I-25 corridor Wednesday afternoon. Also, a few ensemble members of both the GEFS and European are showing gusts in the 60 to 75mph range in the foothills and at the base of the foothills. We'll get a better idea on the potential for the winds to push further east as the high res models continue to come in and we'll continue to keep an eye on the potential for a critical layer and inversion. Another thing to watch for Wednesday is the cold front moving in from the northwest Wednesday evening and overnight. Just ahead of the front, we could see mountain wave enhancement, which would help give the winds the extra push they need to reach Boulder and west metro Denver. As the front moves in, the winds will turn from a chinook event into more of a bora event, with decent northwest winds behind the front. Right now, winds behind the front look to stay around 20 to 30mph with gusts around 40mph. However, the GFS does keep winds a bit higher behind the front, with some sustained speeds closer to 40mph. Temperatures will be cooler and much closer to normal for Thursday afternoon thanks to the front. RH is expected to drop to 15-20% across the I-25 corridor. With the potential for high winds several hours Wednesday afternoon, there are significant fire weather concerns covered in in the fire weather discussion below. Winds will pick back up Thursday night into Friday. Wind gusts at higher elevations could be in the 70 to 90mph range again Friday morning. Once again, we have lower certainty in how far east the stronger winds will push. Right now, we're keeping the stronger wind gusts (50+mph) generally above 7000ft. With the downsloping winds again on Friday, temperatures will warm back up to potentially record breaking highs. Weaker downsloping winds and the approach of a low pressure system and cold front will keep temperatures a few degrees cooler for the weekend, but highs will remain well above normal. Now onto precip chances. The mountains will have a few chances at snow this week. The first round will be associated with the strong west upslope flow, decent moisture, and frontal passage Wednesday into Thursday. The higher elevations of the Front Range and Park Range could see a around 2 to 6 inches of snow, with some higher amounts on the peaks. The foothills and plains also have a chance of precip with the frontal passage, but chances will be low (<30%) and it should be primarily lighter rain amounts. The next chance for precipitation in the mountains will be Friday through Sunday. The Front and Park Ranges could see an additional few inches with this activity. && .AVIATION /06Z TAFS through 06Z Wednesday/... Issued at 1027 PM MST Mon Dec 15 2025 VFR conditions will prevail for all terminals through the TAF period. Expecting winds to make a gradual transisition to the N at KDEN/KAPA through the morning, with westerly winds expected to remain at KBJC, where there's a 60% chance of gusts 25-35 kts 12Z-19Z. Winds will return to drainage patterns early/mid evening. && .FIRE WEATHER... Issued at 302 PM MST Mon Dec 15 2025 Strong downsloping winds and marginal relative humidity values will lead to near critical to critical fire weather Wednesday afternoon. Minimum RH values will be around 15 to 30% in the foothills and the plains. Wind gusts Wednesday afternoon could approach 60mph at times in the I-25 corridor. Winds will be lighter and RH higher on Thursday, limiting fire weather potential. Winds will increase into the 15 to 30mph range for Friday. Minimum RH values Friday will drop to 13 to 25%, leading to elevated to near- critical fire weather. Smoke dispersal conditions will be Fair to Very Good for the West Slope mountain valleys Wednesday through Saturday. && .BOU WATCHES/WARNINGS/ADVISORIES... High Wind Watch from Wednesday morning through Wednesday evening for COZ033>036-038-039. Fire Weather Watch from Wednesday morning through Wednesday afternoon for COZ238>240-242-243-245. && SHORT TERM.....12 LONG TERM...AP AVIATION...BRQ FIRE WEATHER...AP
Hazardous weather outlook, Dec 15, 11:45 AM MST, 14 hours 6 minutes before
Hazardous Weather Outlook National Weather Service Denver/Boulder CO 1145 AM MST Mon Dec 15 2025 COZ030>051-161845- 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- 1145 AM MST Mon Dec 15 2025 This hazardous weather outlook is for northeast and north central Colorado. .DAY ONE...This Afternoon and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Winds will increase Tuesday into Wednesday, with strong winds on Wednesday afternoon in the higher elevations and potentially the foothills. Light snow is expected to return to the northern mountains by Wednesday, with additional chances this weekend. Elevated fire weather conditions will be present Wednesday and Friday across lower elevations, as strong winds and well above normal temperatures combine. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 1:51 AM MST | High Wind Watch | BOU | Logan, Morgan, Weld | 24 hr |
| Dec 16, 3:06 AM MST | Red Flag Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 5 more | 39 hr |
| Dec 16, 2:06 PM MST | Winter Weather Advisory | BOU | Boulder, Grand, Jackson, Larimer | 33 hr |
Nearby
High Wind Warnings in Colorado, 2025Every high wind warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.