Alert archive / Colorado / Winter Storm Warnings in 2026
Winter Storm Warning 2, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Feb 15, 2026, 12:24 PM MST for Grand County, Jackson County, Colorado. It took effect at Feb 17, 2026, 2:00 AM MST. It was in force for 51 hr. 58 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
- Feb 15, 2026, 12:24 PM MST (19:24 UTC)
- In effect from
- Feb 17, 2026, 2:00 AM MST
- Expired
- Feb 19, 2026, 5:00 AM MST
- In force
- 51 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Grand County, CO, Jackson County, CO
The radar
The Cheyenne radar (KCYS), 147 km from the middle of the area, began a volume at 19:28 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 |
|---|---|---|---|
| Feb 17, 3:03 PM MST | SNOW 1.2 | 11 S Rabbit Ears Pass, CO | BUFFALO PARK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 2 PM 02/17/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 17, 3:03 PM MST | SNOW 1.2 | 5 Wsw Winter Park, CO | FOOL CREEK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 2 PM 02/17/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 17, 3:03 PM MST | SNOW 2.4 | 9 Sse Spicer, CO | ARAPAHO RIDGE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 2 PM 02/17/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 17, 3:03 PM MST | SNOW 3.6 | 5 Wsw Grand Lake, CO | STILLWATER CREEK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 2 PM 02/17/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 17, 3:03 PM MST | SNOW 4.8 | 1 Nne Rabbit Ears Pass, CO | COLUMBINE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 2 PM 02/17/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 17, 3:03 PM MST | SNOW 4.8 | 8 Sse Rand, CO | WILLOW CREEK PASS SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 2 PM 02/17/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 17, 3:03 PM MST | SNOW 6 | 1 Nnw Berthoud Pass, CO | BERTHOUD SUMMIT SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 2 PM 02/17/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 17, 3:03 PM MST | SNOW 7.2 | 9 Sse Gould, CO | NEVER SUMMER SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 2 PM 02/17/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:00 AM MST | SNOW 1.5 | Williams Fork Reservoir, CO | CO-OP Observer station WIFC2 Williams Fork Reservoir. |
| Feb 18, 7:00 AM MST | SNOW 1.9 | Walden, CO | Cocorahs station CO-JK-36 Walden 0.2 S. |
| Feb 18, 7:00 AM MST | SNOW 2.4 | 2 Ssw Elkdale, CO | Cocorahs station CO-GR-68 Tabernash 2.7 NW. |
| Feb 18, 7:00 AM MST | SNOW 3.2 | 3 Nnw Parshall, CO | Cocorahs station CO-GR-52 Parshall 3.0 NNW. |
| Feb 18, 7:00 AM MST | SNOW 3.2 | 7 Wsw Grand Lake, CO | Cocorahs station CO-GR-73 Granby 7.7 N. |
| Feb 18, 7:00 AM MST | SNOW 3.5 | 9 Wnw Kremmling, CO | Cocorahs station CO-GR-77 Kremmling 9.1 WNW. |
| Feb 18, 7:48 AM MST | SNOW 5 | 1 W Elkdale, CO | Granby Ranch Ski Area snow stake. |
| Feb 18, 9:00 AM MST | SNOW 7 | 1 Se Gould, CO | CO-OP Observer station CSFC2 1.1 SE Gould. |
| Feb 18, 10:42 AM MST | SNOW 2 | 2 Sse Winter Park, CO | Winter Park Ski Area snow stake. |
| Feb 18, 11:19 AM MST | SNOW 1.2 | 5 Wsw Winter Park, CO | FOOL CREEK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 1.2 | 5 Wsw Winter Park, CO | FOOL CREEK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 2.4 | 11 S Rabbit Ears Pass, CO | BUFFALO PARK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 2.4 | 11 S Rabbit Ears Pass, CO | BUFFALO PARK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 3.6 | 5 W Berthoud Falls, CO | JONES PASS SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 3.6 | 5 W Berthoud Falls, CO | JONES PASS SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 3.6 | 5 Wsw Grand Lake, CO | STILLWATER CREEK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 3.6 | 5 Wsw Grand Lake, CO | STILLWATER CREEK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 3.6 | 6 W Arapahoe Peak, CO | HIGH LONESOME SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 3.6 | 6 W Arapahoe Peak, CO | HIGH LONESOME SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 4.8 | 8 Sse Cameron Pass, CO | PHANTOM VALLEY SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 4.8 | 8 Sse Cameron Pass, CO | PHANTOM VALLEY SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 7.2 | 1 Nnw Berthoud Pass, CO | BERTHOUD SUMMIT SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 7.2 | 1 Nnw Berthoud Pass, CO | BERTHOUD SUMMIT SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 7.2 | 9 Sse Spicer, CO | ARAPAHO RIDGE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 7.2 | 9 Sse Spicer, CO | ARAPAHO RIDGE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 8.4 | 4 Se Mount Zirkel, CO | ZIRKEL SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 8.4 | 4 Se Mount Zirkel, CO | ZIRKEL SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 9.6 | 8 Sse Rand, CO | WILLOW CREEK PASS SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 9.6 | 8 Sse Rand, CO | WILLOW CREEK PASS SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 12 | 9 Sse Gould, CO | NEVER SUMMER SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 12 | 9 Sse Gould, CO | NEVER SUMMER SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 13.2 | 1 Nne Rabbit Ears Pass, CO | COLUMBINE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 13.2 | 1 Nne Rabbit Ears Pass, CO | COLUMBINE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 11:19 AM MST | SNOW 15.6 | 7 Sse Cameron Pass, CO | LAKE IRENE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO. |
| Feb 18, 11:19 AM MST | SNOW 15.6 | 7 Sse Cameron Pass, CO | LAKE IRENE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 9 AM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 1.2 | 10 Nne Silverthorne, CO | MIDDLE FORK CAMP SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 2.4 | 11 S Rabbit Ears Pass, CO | BUFFALO PARK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 2.4 | 5 Ssw Glendevey, CO | RAWAH SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 2.4 | 5 Wsw Winter Park, CO | FOOL CREEK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 3.6 | 5 W Berthoud Falls, CO | JONES PASS SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 6 | 5 Wsw Grand Lake, CO | STILLWATER CREEK SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 6 | 6 W Arapahoe Peak, CO | HIGH LONESOME SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 6 | 8 Sse Cameron Pass, CO | PHANTOM VALLEY SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 8.4 | 1 Nnw Berthoud Pass, CO | BERTHOUD SUMMIT SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 8.4 | 9 Sse Spicer, CO | ARAPAHO RIDGE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 9.6 | 4 Se Mount Zirkel, CO | ZIRKEL SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 9.6 | 8 Sse Rand, CO | WILLOW CREEK PASS SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 13.2 | 9 Sse Gould, CO | NEVER SUMMER SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 15.6 | 1 Nne Rabbit Ears Pass, CO | COLUMBINE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
| Feb 18, 7:13 PM MST | SNOW 16.8 | 7 Sse Cameron Pass, CO | LAKE IRENE SNOTEL SNOWFALL BETWEEN 3 PM 02/16/2026 AND 5 PM 02/18/2026 ESTIMATED USING A 12.0 TO 1 SNOW-TO-LIQUID RATIO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 7.4 hours before the alert went out and 349 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
- 2643 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
900 WWUS45 KBOU 151924 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1224 PM MST Sun Feb 15 2026 COZ031-160700- /O.NEW.KBOU.WS.W.0002.260217T0600Z-260219T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1224 PM MST Sun Feb 15 2026 ...WINTER STORM WARNING IN EFFECT FROM 11 PM MONDAY TO 5 AM MST THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations between 10 and 20 inches. Winds gusting as high as 70 mph. * WHERE...Rabbit Ears Pass. * WHEN...From 11 PM Monday to 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less. Travel could be very difficult to impossible. Damage to trees and power lines is possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ033-034-160700- /O.NEW.KBOU.WW.Y.0007.260217T0600Z-260219T0600Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of East Slopes Southern Gore Range, Cameron Pass, Rabbit Ears Range, Rocky Mountain National Park, Kenosha Mountains, Mount Blue Sky, Winter Park, Breckenridge, Berthoud Pass, Laramie and Medicine Bow Mountains, Indian Peaks, East Slopes Mosquito Range, Willow Creek Pass, Eisenhower Tunnel, and Williams Fork Mountains 1224 PM MST Sun Feb 15 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM MONDAY TO 11 PM MST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 3 and 10 inches, with localized higher amounts up to 12 inches. Winds gusting as high as 70 mph. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...From 11 PM Monday to 11 PM MST Wednesday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow, rapidly reduced visibility and treacherous travel conditions. Travel could be very difficult to impossible. The hazardous conditions will impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 09
9 follow-up statements
670 WWUS45 KBOU 160605 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1105 PM MST Sun Feb 15 2026 COZ031-162200- /O.EXT.KBOU.WS.W.0002.260217T0900Z-260219T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1105 PM MST Sun Feb 15 2026 ...WINTER STORM WARNING NOW IN EFFECT FROM 2 AM TUESDAY TO 5 AM MST THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations between 10 and 20 inches. Winds gusting as high as 60 mph. * WHERE...Rabbit Ears Pass. * WHEN...From 2 AM Tuesday to 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow and rapidly reduced visibility. Snow and ice covered roads will make travel very difficult at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ033-034-162200- /O.EXT.KBOU.WW.Y.0007.260217T0900Z-260219T0600Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Breckenridge, Kenosha Mountains, Eisenhower Tunnel, East Slopes Mosquito Range, Indian Peaks, Rabbit Ears Range, Berthoud Pass, Rocky Mountain National Park, Williams Fork Mountains, Mount Blue Sky, Laramie and Medicine Bow Mountains, Willow Creek Pass, Cameron Pass, East Slopes Southern Gore Range, and Winter Park 1105 PM MST Sun Feb 15 2026 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 2 AM TUESDAY TO 11 PM MST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 3 and 10 inches, with localized higher amounts up to 12 inches. Winds gusting as high as 70 mph over the mountain passes. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...From 2 AM Tuesday to 11 PM MST Wednesday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow and rapidly reduced visibility. Snow and ice covered roads will make travel very difficult at times. The hazardous conditions will impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Meier
502 WWUS45 KBOU 161852 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1152 AM MST Mon Feb 16 2026 COZ031-170615- /O.CON.KBOU.WS.W.0002.260217T0900Z-260219T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1152 AM MST Mon Feb 16 2026 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 AM TUESDAY TO 5 AM MST THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations between 12 and 24 inches, with localized amounts up to 30 inches at the highest elevations. Winds gusting as high as 65 mph. * WHERE...Rabbit Ears Pass. * WHEN...From 2 AM Tuesday to 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow and rapidly reduced visibility. Snow and ice covered roads will make travel very difficult at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ030-032-170615- /O.EXA.KBOU.WW.Y.0007.260217T0900Z-260219T0600Z/ Jackson County Below 9000 Feet-Grand and Summit Counties Below 9000 Feet- Including the cities of Spicer, Hot Sulphur Springs, North Park, Grand Lake, Walden, Gould, Fraser, Kremmling, Rand, Dillon, and Granby 1152 AM MST Mon Feb 16 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM TUESDAY TO 11 PM MST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 5 and 10 inches. Winds gusting as high as 55 mph. * WHERE...North Park, and Grand and Summit Counties Below 9000 Feet. * WHEN...From 2 AM Tuesday to 11 PM MST Wednesday. * IMPACTS...Snow covered roads will make travel hazardous. Roads will become slippery in spots, especially through mountain passes. Use caution when traveling. Snow and blowing snow will reduce visibility to a quarter mile or less. Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ033-034-170615- /O.CON.KBOU.WW.Y.0007.260217T0900Z-260219T0600Z/ 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 Kenosha Mountains, Rocky Mountain National Park, Rabbit Ears Range, Breckenridge, Berthoud Pass, Williams Fork Mountains, Indian Peaks, Cameron Pass, East Slopes Southern Gore Range, Eisenhower Tunnel, Laramie and Medicine Bow Mountains, East Slopes Mosquito Range, Winter Park, Willow Creek Pass, and Mount Blue Sky 1152 AM MST Mon Feb 16 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 AM TUESDAY TO 11 PM MST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 5 and 12 inches, with localized higher amounts up to 16 inches. Winds gusting as high as 70 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 2 AM Tuesday to 11 PM MST Wednesday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow, rapidly reduced visibility and treacherous travel conditions. Travel could be very difficult to impossible. The hazardous conditions will impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 09
590 WWUS45 KBOU 170618 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1118 PM MST Mon Feb 16 2026 COZ031-171700- /O.CON.KBOU.WS.W.0002.260217T0900Z-260219T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1118 PM MST Mon Feb 16 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations between 12 and 24 inches. Winds gusting as high as 55 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow and rapidly reduced visibility. Snow and ice covered roads will make travel very difficult at times. * ADDITIONAL DETAILS...Between 4AM and 7AM this morning, a burst of heavy snow and strong winds are expected to drop visibility to less than a quarter and cause roads to become snow covered. Travel is expected to be very difficult during the time frame. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ030-032>034-171700- /O.CON.KBOU.WW.Y.0007.260217T0900Z-260219T0600Z/ Jackson County Below 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- Including the cities of Rand, Walden, Willow Creek Pass, Dillon, Winter Park, Kremmling, Rocky Mountain National Park, Eisenhower Tunnel, Hot Sulphur Springs, East Slopes Mosquito Range, Rabbit Ears Range, Kenosha Mountains, North Park, Indian Peaks, Gould, East Slopes Southern Gore Range, Breckenridge, Mount Blue Sky, Grand Lake, Fraser, Berthoud Pass, Laramie and Medicine Bow Mountains, Williams Fork Mountains, Granby, Cameron Pass, and Spicer 1118 PM MST Mon Feb 16 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 4 and 9 inches, with localized higher amounts up to 12 inches in the valleys. For the mountains, 6 to 12 inches with localized higher amounts up 18 inches. Winds gusting as high as 60 mph over the mountain passes. * WHERE...North Park, Grand and Summit Counties Below 9000 Feet, Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 11 PM MST Wednesday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow, rapidly reduced visibility, and treacherous travel conditions. Travel could be very difficult to impossible. The hazardous conditions will impact the Tuesday morning and evening commutes. * ADDITIONAL DETAILS...Between 5AM and 8AM this morning, a burst of heavy snow and strong winds are expected to drop visibility to less than a quarter and cause roads to become snow covered. Travel is expected to be very difficult during the time frame. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Meier
469 WWUS45 KBOU 171557 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 857 AM MST Tue Feb 17 2026 COZ031-180700- /O.CON.KBOU.WS.W.0002.000000T0000Z-260219T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 857 AM MST Tue Feb 17 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...Heavy snow expected. Total additional snow accumulations between 8 and 16 inches. Winds gusting as high as 55 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow and rapidly reduced visibility. Snow and ice covered roads will make travel very difficult at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ030-032>034-180700- /O.CON.KBOU.WW.Y.0007.000000T0000Z-260219T0600Z/ Jackson County Below 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- Including the cities of Hot Sulphur Springs, Mount Blue Sky, Cameron Pass, Dillon, Eisenhower Tunnel, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Granby, Indian Peaks, Walden, Fraser, East Slopes Mosquito Range, Berthoud Pass, Kenosha Mountains, Rocky Mountain National Park, Spicer, Rand, Williams Fork Mountains, Willow Creek Pass, Gould, Breckenridge, Kremmling, Grand Lake, East Slopes Southern Gore Range, Winter Park, and North Park 857 AM MST Tue Feb 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST WEDNESDAY... * WHAT...Snow expected. Additional snow accumulations between 2 and 5 inches in the valleys. For the mountains, 4 to 8 inches of additional snowfall with localized higher amounts up 12 inches. Winds gusting as high as 60 mph over the mountain passes. * WHERE...North Park, Grand and Summit Counties Below 9000 Feet, Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 11 PM MST Wednesday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow, rapidly reduced visibility, and treacherous travel conditions. Travel could be very difficult to impossible. The hazardous conditions will impact the Tuesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 22
260 WWUS45 KBOU 180328 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 828 PM MST Tue Feb 17 2026 COZ031-181530- /O.CON.KBOU.WS.W.0002.000000T0000Z-260219T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 828 PM MST Tue Feb 17 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...Heavy snow expected. Total additional snow accumulations between 8 and 16 inches. Winds gusting as high as 55 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow and rapidly reduced visibility. Snow and ice covered roads will make travel very difficult at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ030-032>034-181530- /O.CON.KBOU.WW.Y.0007.000000T0000Z-260219T0600Z/ Jackson County Below 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- Including the cities of Spicer, Cameron Pass, Rand, Kremmling, Indian Peaks, Rocky Mountain National Park, Mount Blue Sky, East Slopes Southern Gore Range, Rabbit Ears Range, Grand Lake, Berthoud Pass, Walden, Kenosha Mountains, East Slopes Mosquito Range, Fraser, Granby, Eisenhower Tunnel, Breckenridge, Hot Sulphur Springs, Laramie and Medicine Bow Mountains, Winter Park, Dillon, Williams Fork Mountains, North Park, Willow Creek Pass, and Gould 828 PM MST Tue Feb 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST WEDNESDAY... * WHAT...Snow expected. Additional snow accumulations between 2 and 5 inches in the valleys. For the mountains, 4 to 8 inches of additional snowfall with localized higher amounts possible. Winds gusting as high as 60 mph over the mountain passes. * WHERE...North Park, Grand and Summit Counties Below 9000 Feet, Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 11 PM MST Wednesday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls to bring quick intense bursts of snow, rapidly reduced visibility, and treacherous travel conditions. Travel could be very difficult to impossible. The hazardous conditions will impact the Wednesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 63
790 WWUS45 KBOU 180559 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1059 PM MST Tue Feb 17 2026 COZ031-182200- /O.CON.KBOU.WS.W.0002.000000T0000Z-260219T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1059 PM MST Tue Feb 17 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...Heavy snow and blowing snow. Additional snow accumulations between 7 and 15 inches. Winds gusting to around 50 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls Wednesday afternoon and evening to bring quick intense bursts of snow and whiteout conditions. Travel will be very difficult at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ033-034-182200- /O.EXT.KBOU.WW.Y.0007.000000T0000Z-260219T1200Z/ 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 Kenosha Mountains, Rocky Mountain National Park, Williams Fork Mountains, East Slopes Mosquito Range, Eisenhower Tunnel, Mount Blue Sky, Cameron Pass, Berthoud Pass, Laramie and Medicine Bow Mountains, Breckenridge, Winter Park, East Slopes Southern Gore Range, Willow Creek Pass, Rabbit Ears Range, and Indian Peaks 1059 PM MST Tue Feb 17 2026 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...Snow. Additional snow accumulations between 3 and 8 inches. Winds gusting as high as 65 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...Until 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less at times. There will also be potential for sudden snow squalls late Wednesday afternoon and evening to bring quick intense bursts of snow and brief whiteout conditions. The hazardous conditions will impact the Wednesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ COZ030-032-182200- /O.CON.KBOU.WW.Y.0007.000000T0000Z-260219T0600Z/ Jackson County Below 9000 Feet-Grand and Summit Counties Below 9000 Feet- Including the cities of Spicer, Rand, Walden, Dillon, Fraser, Kremmling, Grand Lake, Hot Sulphur Springs, North Park, Granby, and Gould 1059 PM MST Tue Feb 17 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST WEDNESDAY... * WHAT...Snow and patchy blowing snow. Additional snow accumulations between 3 and 5 inches. Winds gusting as high as 35 mph. * WHERE...North Park, and Grand and Summit Counties Below 9000 Feet. * WHEN...Until 11 PM MST Wednesday. * IMPACTS...Snow covered roads will make travel hazardous. Snow and blowing snow may briefly reduce visibility to a quarter mile or less. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 20
768 WWUS45 KBOU 181747 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1047 AM MST Wed Feb 18 2026 COZ031-191200- /O.CON.KBOU.WS.W.0002.000000T0000Z-260219T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1047 AM MST Wed Feb 18 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...Heavy snow and blowing snow. Additional snow accumulations between 5 and 10 inches. Winds gusting as high as 50 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less, with potential for sudden snow squalls Wednesday afternoon and evening to bring quick intense bursts of snow and whiteout conditions. Travel will be very difficult at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ030-032-190600- /O.CON.KBOU.WW.Y.0007.000000T0000Z-260219T0600Z/ Jackson County Below 9000 Feet-Grand and Summit Counties Below 9000 Feet- Including the cities of North Park, Gould, Spicer, Hot Sulphur Springs, Walden, Grand Lake, Dillon, Fraser, Rand, Kremmling, and Granby 1047 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Snow and blowing snow. Additional snow accumulations between 1 and 3 inches. Winds gusting as high as 35 mph. * WHERE...North Park, and Grand and Summit Counties Below 9000 Feet. * WHEN...Until 11 PM MST this evening. * IMPACTS...Snow covered roads will make travel hazardous. Snow and blowing snow may briefly reduce visibility to a quarter mile or less. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ033-034-191200- /O.CON.KBOU.WW.Y.0007.000000T0000Z-260219T1200Z/ 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 Kenosha Mountains, Willow Creek Pass, Rocky Mountain National Park, Laramie and Medicine Bow Mountains, Indian Peaks, Winter Park, Berthoud Pass, East Slopes Southern Gore Range, Eisenhower Tunnel, East Slopes Mosquito Range, Breckenridge, Rabbit Ears Range, Williams Fork Mountains, Mount Blue Sky, and Cameron Pass 1047 AM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...Snow and blowing snow. Additional snow accumulations between 3 and 5 inches. Winds gusting as high as 65 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...Until 5 AM MST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Wednesday evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 22
046 WWUS45 KBOU 190614 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1114 PM MST Wed Feb 18 2026 COZ030-032-190715- /O.EXP.KBOU.WW.Y.0007.000000T0000Z-260219T0600Z/ Jackson County Below 9000 Feet-Grand and Summit Counties Below 9000 Feet- Including the cities of Gould, Granby, Dillon, Grand Lake, Kremmling, Fraser, Rand, Hot Sulphur Springs, North Park, Spicer, and Walden 1114 PM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY HAS EXPIRED... $$ COZ031-191200- /O.CON.KBOU.WS.W.0002.000000T0000Z-260219T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1114 PM MST Wed Feb 18 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...Heavy snow. Additional snow accumulations up to three inches. Winds gusting as high as 45 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Thursday. * IMPACTS...Snow and ice covered roads will make travel hazardous, with the possibility of very difficult or impossible travel. Snow and blowing snow will reduce visibility to a quarter mile or less. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. If traveling to the mountains, be prepared for winter driving conditions. Check cotrip.org for road closures and traction laws. && $$ COZ033-034-191200- /O.CON.KBOU.WW.Y.0007.000000T0000Z-260219T1200Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of East Slopes Southern Gore Range, Berthoud Pass, Williams Fork Mountains, Cameron Pass, East Slopes Mosquito Range, Breckenridge, Rocky Mountain National Park, Laramie and Medicine Bow Mountains, Willow Creek Pass, Indian Peaks, Kenosha Mountains, Mount Blue Sky, Winter Park, Eisenhower Tunnel, and Rabbit Ears Range 1114 PM MST Wed Feb 18 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... * WHAT...Snow. Additional snow accumulations up to three inches. Winds gusting as high as 60 mph. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 5 AM MST Thursday. * IMPACTS...Snow and blowing snow will reduce visibility to a quarter mile or less at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ For more information from the National Weather Service, visit https://weather.gov/bou 63
256 WWUS45 KBOU 191156 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 456 AM MST Thu Feb 19 2026 COZ031-191300- /O.EXP.KBOU.WS.W.0002.000000T0000Z-260219T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 456 AM MST Thu Feb 19 2026 ...WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... Widespread snow has ended, therefore the Winter Storm Warning will be allow to expire. Light snow will linger in places with up to 2 additional inches of snow. Roads are snow covered and slippery in places. If traveling this morning, expect slow travel and give yourself extra time. $$ COZ033-034-191300- /O.EXP.KBOU.WW.Y.0007.000000T0000Z-260219T1200Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Laramie and Medicine Bow Mountains, Winter Park, Indian Peaks, Cameron Pass, Willow Creek Pass, Kenosha Mountains, East Slopes Southern Gore Range, Rocky Mountain National Park, Rabbit Ears Range, Berthoud Pass, Eisenhower Tunnel, Mount Blue Sky, Breckenridge, East Slopes Mosquito Range, and Williams Fork Mountains 456 AM MST Thu Feb 19 2026 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... Widespread snow has ended, therefore the Winter Weather Advisory will be allow to expire. Light snow will linger in places with up to 2 additional inches of snow. Roads are snow covered and slippery in places. If traveling this morning, expect slow travel and give yourself extra time. $$ For more information from the National Weather Service, visit https://weather.gov/bou Meier
What forecasters said that day
The local office's own words before this winter storm 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 winter storm warning went out at Feb 15, 10:38 AM MST, 1 hour 46 minutes earlier. Its key messages:
- Critical fire weather conditions today for portions of the eastern plains. Elevated to critical fire weather conditions are likely again on Monday for much of the eastern plains and southern I-25 corridor.
- Very windy with critical to extremely critical fire weather conditions possible Tuesday for the lower foothills eastward across all of the eastern Colorado plains.
- Additional fire weather concerns for elevated to critical fire weather conditions Wednesday and Thursday.
- Snow returns to the mountains early Tuesday. Snow and blowing snow will likely lead to travel impacts across most of the higher elevations beginning Tuesday. Additional mountain snow possible Wednesday and Friday.
Area forecast discussion, Feb 15, 10:38 AM MST, 1 hour 46 minutes before
Area Forecast Discussion National Weather Service Denver/Boulder CO 1038 AM MST Sun Feb 15 2026 .KEY MESSAGES... - Critical fire weather conditions today for portions of the eastern plains. Elevated to critical fire weather conditions are likely again on Monday for much of the eastern plains and southern I-25 corridor. - Very windy with critical to extremely critical fire weather conditions possible Tuesday for the lower foothills eastward across all of the eastern Colorado plains. - Additional fire weather concerns for elevated to critical fire weather conditions Wednesday and Thursday. - Snow returns to the mountains early Tuesday. Snow and blowing snow will likely lead to travel impacts across most of the higher elevations beginning Tuesday. Additional mountain snow possible Wednesday and Friday. && .DISCUSSION /Through Saturday/... Issued at 1143 PM MST Sat Feb 14 2026 Near record high temperatures are forecast for Sunday as a ridge axis sits over the region. Mid-level (700mb) temperatures are expected to warm to about +3 to +5C this afternoon, with enough of a westerly downslope component to the flow aloft to push temperatures into the mid to upper 60s. With most of the CWA right on the northern extent of the thermal ridge, the warmer temperatures will likely end up south of I-76 with temperatures closer to the low/mid 60s for Fort Collins and Greeley. Some elevated to critical fire weather conditions appear likely across the plains, but will be somewhat localized to where gustier southwesterly winds are able to develop. We'll gradually start to see more influence from a trough over the Pacific coast by Monday, as southwesterly flow aloft begins to develop and strengthen. Once again warm mid-level temperatures will lead well above normal temperatures, with upper 60s to perhaps low 70s possible across the plains. The combination of warm and dry conditions will lead to some fire weather concerns yet again, but winds look to be considerably weaker across most of the I-25 corridor during the afternoon hours. We did consider trimming the areal extent of Monday's fire weather watch, but left it as is. See the Fire Wx section of the AFD for additional details on all of our current highlights. The first shortwave associated with the broader western US trough ejects into Colorado by Tuesday. While moisture depths aren't particularly impressive across the mountains, well-aligned west- southwesterly flow combined with steepening sfc-400mb lapse rates should lead to a gradual increase in snow showers across the mountains during the day. Periods of moderate to heavy snow will be possible Tuesday into Tuesday night, especially with support (albeit brief) from increasing PVA/QG ascent and our favorable, left exit quadrant of a 150kt jet streak. Across the plains, fire weather will be the main concern for Tuesday... though model trends have slowly started to back away from the higher end scenarios shown over the last couple of days. While the overall synoptic trends are subtle, it is at least worth discussing. First, the timing of the shortwave and the subsequent cold air advection/bora remains up in the air... with a subsident regime (which would favor better mixing/gusty winds) potentially holding off until late in the afternoon or evening. On a similar note, some guidance is rather bullish developing at least scattered showers across the foothills/I-25 corridor Tuesday AM, again likely aided by the favorable jet position at the time. Most of the 00z deterministic guidance has backed off quite a bit with maximum wind gusts Tuesday afternoon as a response, and it will be worth monitoring if that trend continues. As we get to mid-week and beyond, the forecast pattern remains relatively consistent over the mountains but considerably less certain across the plains. At least two additional shortwaves are expected to race across the CWA on Wednesday/Wednesday night and again Friday into Friday night, leading to additional rounds of light to moderate mountain snow. We'll likely need some winter highlights through most of the week for most of the mountain zones, but it's still a little early to try to sort out the best way to handle the multiple periods of snow/blowing snow. Across the plains, the main question will be where the main surface baroclinic zone and subsequent lee cyclogenesis sets up. The general consensus across guidance is that each shortwave will shove that zone further south - meaning that the surface low may develop right over our CWA on Wednesday and closer to southeast Colorado by Friday/Saturday. Gusty winds and elevated/critical fire weather conditions are likely to the south wherever the low develops, though again we appear to be trending towards the cooler/wetter(?) side of this regime as we get through the week. A couple models are actually pretty close to producing some snow across the lower elevations towards the end of the week, which would be a welcome pattern change (at least in this forecaster's opinion). && .AVIATION /18Z TAFS through 18Z Monday/... Issued at 1033 AM MST Sun Feb 15 2026 Today...VFR. We hold onto the southerly winds a tad longer before a more northwest push occurs closer to 21Z at all the terminals. There will likely be a period, maybe an hour, where the winds go light and variable during the transition. Winds then continue to turn more northeast during the evening pushes over the TRACON airspace. High confidence. Tonight/Monday...VFR. Light and variable leading to drainage winds tonight into mid-Monday morning is expected. Some guidance is hinting at a possible DCVZ, albeit weak, developing late morning. We introduce a stronger west of south wind for the afternoon hours, 19-20Z, based on the DCVZ placement. Medium to high confidence. && .FIRE WEATHER... Issued at 1143 PM MST Sat Feb 14 2026 An extended period of elevated to critical fire weather conditions remains likely through at least Tuesday. Sunday will feature some elevated to critical conditions, mainly along a narrow corridor from roughly Limon to Akron to Julesburg during the afternoon hours. Monday's fire weather forecast remains rather difficult. While confidence in the well above normal temperatures and low humidity is high, the wind forecast remains challenging during the daytime hours. As a general rule, southwesterly flow aloft often shelters most of the urban corridor and some of the adjacent plains (typically along/north of I-76), while some of the exposed portions of the southern Foothills can tap into the flow aloft. Unsurprisingly, our initial look at the overnight CAMs would support that pattern... with most of the Denver metro and foothills below ~7000ft remaining sheltered through most of the day. While we did not make any changes to the existing Fire Weather Watch, I suspect that we'll eventually need to trim the extent of that as we get closer to Monday. We would favor the Palmer Divide, eastern Adams/Arapahoe and most of Lincoln/Washington counties as the most likely spot for critical fire weather conditions Monday afternoon. Tuesday remains the most likely day for widespread critical fire weather conditions as more widespread wind develops across the lower elevations. Again, the main questions in this period are (1) how much moisture spills over into the foothills/I-25 corridor, and (2) just how strong are the winds going to get during the afternoon? If the last couple model cycles are to be believed, our forecast is a bit drier/windier than a multi-model consensus (see the main discussion section for what's changed), but nonetheless virtually every model would support fairly widespread critical conditions across the lower elevations, especially east of I-25 where better overlap of the gusty winds/low RH is forecast. Elevated to critical fire weather conditions may also be possible Wednesday or Thursday, though again recent trends would support a quicker transition to a cooler/unsettled pattern across the foothills and plains in this period. We'll continue to monitor forecast trends but at this time no additional fire weather highlights are planned beyond Tuesday. && .BOU WATCHES/WARNINGS/ADVISORIES... Fire Weather Watch from Tuesday morning through Tuesday evening for COZ215-216-238>251. Fire Weather Watch from Monday morning through Monday afternoon for COZ216-240-241-244>247-249. Red Flag Warning until 5 PM MST this afternoon for COZ246- 249>251. && DISCUSSION...Hiris AVIATION...Heavener FIRE WEATHER...Hiris
Hazardous weather outlook, Feb 15, 4:08 AM MST, 8 hours 16 minutes before
Hazardous Weather Outlook National Weather Service Denver/Boulder CO 408 AM MST Sun Feb 15 2026 COZ030>051-161115- 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- 408 AM MST Sun Feb 15 2026 This hazardous weather outlook is for northeast and north central Colorado. .DAY ONE...Today and Tonight Warm and dry conditions will prevail today leading to elevated fire weather conditions. Over the eastern plains, east of a Limon to Akron to Julesburg line, southwest winds gusting to around 30 mph will lead to Red Flag conditions. .DAYS TWO THROUGH SEVEN...Monday through Saturday Elevated to locally critical fire weather conditions are expected for Monday. The stronger winds on Monday are expected to be over/near the Palmer Divide and eastward across the plains south of I-70. Widespread critical fire weather conditions are still on track for Tuesday afternoon due to very windy conditions with wind gusts of 50 to 60 mph possible. Wednesday could be another critical fire weather day with the best chance being over the plains along and south of I-70. For the mountains, a few rounds of light to moderate snow are expected. This first being Tuesday and a second one Wednesday. A break in snow is expected Thursday before another round of snow moves in for Friday. .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 |
|---|---|---|---|---|
| Feb 15, 11:26 AM MST | Red Flag Warning | BOU | Adams, Arapahoe, Clear Creek, Douglas, Elbert, Gilpin and 4 more | 31 hr |
| Feb 15, 11:41 AM MST | High Wind Watch | BOU | Adams, Arapahoe, Elbert, Lincoln, Logan, Morgan and 2 more | 25 hr |
| Feb 15, 12:24 PM MST | Winter Weather Advisory | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 4 days |
Nearby
Winter Storm Warnings in Colorado, 2026Every winter storm warning in 2026
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.