Alert archive / Colorado / Winter Storm Warnings in 2021
Winter Storm Warning 12, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Dec 25, 2021, 1:48 PM MST for Grand County, Jackson County, Colorado. It took effect at Dec 26, 2021, 2:00 AM MST. It was in force for 54 hr. 26 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 25, 2021, 1:48 PM MST (20:48 UTC)
- In effect from
- Dec 26, 2021, 2:00 AM MST
- Expired
- Dec 28, 2021, 8:00 AM MST
- In force
- 54 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 20:50 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 26, 1:35 PM MST | HEAVY SNOW 2.5 | 1 Se Kremmling, CO | SNOW SQUALL. VISIBILITY DROPPED TO ONE QUARTER MILE FOR 20 MINUTES. METAR PEAK WIND GUSTS OF 46 MPH. |
| Dec 26, 6:30 PM MST | SNOW 1.3 | 1 Nnw Berthoud Pass, CO | BERTHOUD SUMMIT SNOTEL SNOWFALL BETWEEN 12 AM 12/26/2021 AND 5 PM 12/26/2021 ESTIMATED USING A 13.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 26, 6:30 PM MST | SNOW 2.7 | 10 Nne Silverthorne, CO | MIDDLE FORK CAMP SNOTEL SNOWFALL BETWEEN 12 AM 12/26/2021 AND 5 PM 12/26/2021 ESTIMATED USING A 13.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 26, 6:30 PM MST | SNOW 2.7 | 11 S Rabbit Ears Pass, CO | BUFFALO PARK SNOTEL SNOWFALL BETWEEN 12 AM 12/26/2021 AND 5 PM 12/26/2021 ESTIMATED USING A 13.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 26, 6:30 PM MST | SNOW 2.7 | 5 Ssw Glendevey, CO | RAWAH SNOTEL SNOWFALL BETWEEN 12 AM 12/26/2021 AND 5 PM 12/26/2021 ESTIMATED USING A 13.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 26, 6:30 PM MST | SNOW 4 | 5 Wsw Grand Lake, CO | STILLWATER CREEK SNOTEL SNOWFALL BETWEEN 12 AM 12/26/2021 AND 5 PM 12/26/2021 ESTIMATED USING A 13.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 26, 6:30 PM MST | SNOW 5.4 | 6 W Arapahoe Peak, CO | HIGH LONESOME SNOTEL SNOWFALL BETWEEN 12 AM 12/26/2021 AND 5 PM 12/26/2021 ESTIMATED USING A 13.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 26, 6:30 PM MST | SNOW 5.4 | 8 Sse Rand, CO | WILLOW CREEK PASS SNOTEL SNOWFALL BETWEEN 12 AM 12/26/2021 AND 5 PM 12/26/2021 ESTIMATED USING A 13.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 26, 6:30 PM MST | SNOW 5.4 | 9 Sse Spicer, CO | ARAPAHO RIDGE SNOTEL SNOWFALL BETWEEN 12 AM 12/26/2021 AND 5 PM 12/26/2021 ESTIMATED USING A 13.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 26, 6:30 PM MST | HEAVY SNOW 8.1 | 4 Se Mount Zirkel, CO | ZIRKEL SNOTEL SNOWFALL BETWEEN 12 AM 12/26/2021 AND 5 PM 12/26/2021 ESTIMATED USING A 13.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 26, 6:30 PM MST | HEAVY SNOW 8.1 | 9 Sse Gould, CO | NEVER SUMMER SNOTEL SNOWFALL BETWEEN 12 AM 12/26/2021 AND 5 PM 12/26/2021 ESTIMATED USING A 13.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | SNOW 3 | 5 Ssw Glendevey, CO | RAWAH SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | SNOW 4.5 | 11 S Rabbit Ears Pass, CO | BUFFALO PARK SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | SNOW 4.5 | 1 Nnw Berthoud Pass, CO | BERTHOUD SUMMIT SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | SNOW 4.5 | 5 W Berthoud Falls, CO | JONES PASS SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | SNOW 4.5 | 5 Wsw Grand Lake, CO | STILLWATER CREEK SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | SNOW 4.5 | 5 Wsw Winter Park, CO | FOOL CREEK SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | SNOW 4.5 | 8 Sse Cameron Pass, CO | PHANTOM VALLEY SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | SNOW 4.5 | 8 Sse Rand, CO | WILLOW CREEK PASS SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | HEAVY SNOW 6 | 10 Nne Silverthorne, CO | MIDDLE FORK CAMP SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | HEAVY SNOW 7.5 | 6 W Arapahoe Peak, CO | HIGH LONESOME SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | HEAVY SNOW 7.5 | 9 Sse Spicer, CO | ARAPAHO RIDGE SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | HEAVY SNOW 9 | 1 Nne Rabbit Ears Pass, CO | COLUMBINE SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | HEAVY SNOW 10.5 | 7 Sse Cameron Pass, CO | LAKE IRENE SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | HEAVY SNOW 12 | 4 Se Mount Zirkel, CO | ZIRKEL SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 27, 4:37 AM MST | HEAVY SNOW 12 | 9 Sse Gould, CO | NEVER SUMMER SNOTEL SNOWFALL BETWEEN 5 AM 12/26/2021 AND 2 AM 12/27/2021 ESTIMATED USING A 15.0 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
Grand Junction, CO (KGJT), launched 12:00Z, 8.8 hours before the alert went out and 239 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
- 1 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 1359 m above ground
- 0-6 km bulk shear
- 90 kt
- 0-1 km storm-relative helicity
- 295 m²/s²
- 0-3 km storm-relative helicity
- 355 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
320 WWUS45 KBOU 252048 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 148 PM MST Sat Dec 25 2021 COZ031-260700- /O.UPG.KBOU.WS.A.0009.211226T0900Z-211227T1200Z/ /O.NEW.KBOU.WS.W.0012.211226T0900Z-211227T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 148 PM MST Sat Dec 25 2021 ...WINTER STORM WARNING IN EFFECT FROM 2 AM SUNDAY TO 5 AM MST MONDAY... * WHAT...Heavy snow. Additional snow accumulations between 7 and 14 inches, with higher amounts north of Rabbit Ears Pass. Winds gusting between 40 and 60 mph creating near blizzard conditions. * WHERE...Rabbit Ears Pass. * WHEN...Snow and winds will increase Sunday morning and snow will be heavy at times during the day. The snow will diminish Sunday night, but it will still be windy with extensive blowing and drifting snow. * IMPACTS...Travel could be very difficult to impossible, especially during the day Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider avoiding travel over Rabbit Ears Pass on Sunday. If you do travel, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ COZ033-034-260700- /O.UPG.KBOU.WS.A.0009.211226T0900Z-211227T1200Z/ /O.NEW.KBOU.WW.Y.0036.211226T1200Z-211227T1200Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of East Slopes Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 148 PM MST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM SUNDAY TO 5 AM MST MONDAY... * WHAT...Snow expected. Additional snow accumulations of 4 to 8 inches. Wind gusts of 30 to 50 mph will be common, with gusts as high as 70 mph above timberline in the Front Range. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Snow and wind will increase Sunday morning and snow may be heavy at times during the day. The snow will diminish overnight Sunday night, but it will remain windy with extensive blowing and drifting snow over higher areas. * IMPACTS...Travel could be very difficult, with intermittent road closures possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your travel plans to avoid travel during the day Sunday. Heavy snowfall is expected to make travel difficult. If you do travel, carry extra food, water and fuel along with warm clothing. Be prepared for slow travel and possible road closures. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ COZ030-032-260700- /O.NEW.KBOU.WW.Y.0036.211226T1200Z-211227T0000Z/ Jackson County Below 9000 Feet-Grand and Summit Counties Below 9000 Feet- Including the cities of Rand, Granby, North Park, Hot Sulphur Springs, Dillon, Kremmling, Fraser, Grand Lake, Walden, Gould, and Spicer 148 PM MST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY... * WHAT...Snow expected. Total snow accumulations between 2 and 4 inches. Winds gusting as high as 50 mph producing areas of blowing and drifting snow. * WHERE...North Park, and Grand and Summit Counties Below 9000 Feet. * WHEN...From 5 AM to 5 PM MST Sunday. * IMPACTS...Plan on slippery road conditions along with areas of poor visibility. 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. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Gimmestad
10 follow-up statements
044 WWUS45 KBOU 260659 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1159 PM MST Sat Dec 25 2021 ...SIGNIFICANT TRAVEL IMPACTS EXPECTED WITH QUICK HITTING STORM SUNDAY... .A fast moving storm system will bring hazardous travel conditions to the mountains on Sunday. Snow will develop late tonight and Sunday morning, and may then become heavy at times by early afternoon Sunday. Strong winds and considerable blowing snow will combine with the falling snow to produce blizzard or near blizzard conditions at times early to mid afternoon Sunday. Road closures will be possible. Snow will decrease by late afternoon or early evening, but slick roads, lighter snow, and areas of blowing snow will continue through Sunday night. COZ031-261500- /O.CON.KBOU.WS.W.0012.211226T0900Z-211227T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1159 PM MST Sat Dec 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Heavy snow and blowing snow. Snow accumulations between 7 and 14 inches, with higher amounts north of Rabbit Ears Pass. Winds gusting between 45 and 65 mph creating near blizzard conditions. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Monday. * IMPACTS...Travel could be very difficult to impossible, especially during the day Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider avoiding travel over Rabbit Ears Pass on Sunday. If you do travel, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ COZ030-032-261500- /O.CON.KBOU.WW.Y.0036.211226T1200Z-211227T0000Z/ Jackson County Below 9000 Feet-Grand and Summit Counties Below 9000 Feet- Including the cities of Rand, Granby, North Park, Hot Sulphur Springs, Dillon, Kremmling, Fraser, Grand Lake, Walden, Gould, and Spicer 1159 PM MST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM MST SUNDAY... * WHAT...Snow and blowing snow expected. Total snow accumulations between 2 and 4 inches. Winds gusting as high as 50 mph producing areas of blowing and drifting snow. * WHERE...North Park, and Grand and Summit Counties Below 9000 Feet. * WHEN...From 5 AM to 5 PM MST Sunday. * IMPACTS...Plan on slippery road conditions along with areas of poor visibility. 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. && $$ COZ033-034-261500- /O.CON.KBOU.WW.Y.0036.211226T1200Z-211227T1200Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of East Slopes Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 1159 PM MST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM SUNDAY TO 5 AM MST MONDAY... * WHAT...Snow and blowing snow expected. Snow accumulations of 4 to 8 inches. Wind gusts of 40 to 55 mph will be common, with gusts in excess of 70 mph above timberline. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...From 5 AM Sunday to 5 AM MST Monday. * IMPACTS...Travel could be very difficult, with intermittent road closures possible. Widespread blowing snow could significantly reduce visibility with blizzard or near blizzard conditions at times early to mid afternoon Sunday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your travel plans to avoid travel during the day Sunday. Heavy snowfall and significant blowing snow is expected to make travel difficult. If you do travel, carry extra food, water and fuel along with warm clothing. Be prepared for slow travel and possible road closures. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ For more information from the National Weather Service, visit https://weather.gov/bou Barjenbruch
097 WWUS45 KBOU 261322 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 622 AM MST Sun Dec 26 2021 ...SIGNIFICANT TRAVEL IMPACTS EXPECTED WITH QUICK HITTING STORM SUNDAY... .A fast moving storm system will bring hazardous travel conditions to the mountains on Sunday. Snow will increase this morning, and will be heavy at times especially during the middle of the day. Strong winds and considerable blowing snow will combine with the falling snow to produce near blizzard conditions at times. Road closures will be possible. Snow will decrease by late afternoon or early evening, but slick roads, lighter snow, and areas of blowing snow will continue through Sunday night. COZ031-262200- /O.CON.KBOU.WS.W.0012.000000T0000Z-211227T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 622 AM MST Sun Dec 26 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Heavy snow and blowing snow. Snow accumulations between 7 and 14 inches, with higher amounts north of Rabbit Ears Pass. Winds gusting between 45 and 65 mph creating near blizzard conditions. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Monday. * IMPACTS...Travel will be very difficult at times. Road closures are possible. Near blizzard conditions can be expected in exposed areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider avoiding travel during the worst conditions, which will likely be during the middle of the day today. If you do travel, drive with extreme caution. Take a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. For the latest road conditions, call 5 1 1 or visit www.cotrip.org. && $$ COZ030-032-262200- /O.CON.KBOU.WW.Y.0036.000000T0000Z-211227T0000Z/ Jackson County Below 9000 Feet-Grand and Summit Counties Below 9000 Feet- Including the cities of Rand, Granby, North Park, Hot Sulphur Springs, Dillon, Kremmling, Fraser, Grand Lake, Walden, Gould, and Spicer 622 AM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow and blowing snow expected. Total snow accumulations between 2 and 4 inches. Winds gusting as high as 50 mph producing areas of blowing and drifting snow. * WHERE...North Park, and Grand and Summit Counties Below 9000 Feet. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ COZ033-034-262200- /O.CON.KBOU.WW.Y.0036.000000T0000Z-211227T1200Z/ 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 Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 622 AM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Snow and blowing snow expected. Snow accumulations of 4 to 8 inches. Wind gusts of 40 to 55 mph will be common, with gusts in excess of 70 mph above timberline. * 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 Monday. * IMPACTS...Travel could be very difficult, with intermittent road closures possible. Widespread blowing snow could significantly reduce visibility with near blizzard conditions at times, especially this afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider altering your travel plans to avoid travel during the worst conditions, from late morning through this afternoon. If you do travel, carry extra food, water and fuel along with warm clothing. Be prepared for slow travel and possible road closures. 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 Gimmestad
733 WWUS45 KBOU 262148 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 248 PM MST Sun Dec 26 2021 ...HEAVY SNOW AND STRONG WINDS MOVING ACROSS THE NORTHERN COLORADO MOUNTAINS... .A cold front moving across the mountains was bringing strong winds and considerable blowing snow along with a quick shot of heavy snow across the northern Colorado mountains this afternoon. There will be near blizzard conditions at times and road closures will be possible. The worst of the snow and winds will be past by this evening, though lighter snow and windy conditions will continue over the higher mountains overnight. Snow will decrease by late afternoon or early evening, but slick roads, lighter snow, and areas of blowing snow will continue through Sunday night. COZ031-270600- /O.CON.KBOU.WS.W.0012.000000T0000Z-211227T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 248 PM MST Sun Dec 26 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Heavy snow and blowing snow. Total snow accumulations between 7 and 14 inches, with higher amounts north of Rabbit Ears Pass. Winds gusting between 45 and 65 mph creating near blizzard conditions. * WHERE...Rabbit Ears Pass. * WHEN...The worst conditions will be during the afternoon, with gradual improvement overnight. * IMPACTS...Travel will be very difficult at times. Road closures are possible. Near blizzard conditions can be expected in exposed areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider avoiding travel over Rabbit Ears Pass, at least until conditions improve later this evening or until tomorrow if possible. If you do travel, drive with extreme caution. Take a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. For the latest road conditions and closure information, call 5 1 1 or visit www.cotrip.org. && $$ COZ030-032-270000- /O.CON.KBOU.WW.Y.0036.000000T0000Z-211227T0000Z/ Jackson County Below 9000 Feet-Grand and Summit Counties Below 9000 Feet- Including the cities of Rand, Granby, North Park, Hot Sulphur Springs, Dillon, Kremmling, Fraser, Grand Lake, Walden, Gould, and Spicer 248 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow and blowing snow expected. Total snow accumulations between 2 and 4 inches. Winds gusting as high as 50 mph producing areas of blowing and drifting snow. * WHERE...North Park, and Grand and Summit Counties Below 9000 Feet. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Plan on slippery road conditions. Widespread blowing snow could significantly reduce visibility. 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 && $$ COZ033-034-270600- /O.CON.KBOU.WW.Y.0036.000000T0000Z-211227T1200Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet-South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of East Slopes Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 248 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Snow and blowing snow expected. Total snow accumulations of 4 to 8 inches. Wind gusts of 40 to 55 mph will be common, with gusts in excess of 70 mph above timberline. * WHERE...Rocky Mountain National Park and the Medicine Bow Range, and The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...The worst conditions will be this afternoon, with gradual improvement overnight. * IMPACTS...Travel could be very difficult, with intermittent road closures possible. Widespread blowing snow could significantly reduce visibility with near blizzard conditions at times, especially this afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Consider delaying travel until the worst conditions have passed later this evening, or tomorrow morning if possible. If you do travel, carry extra food, water and fuel along with warm clothing. Be prepared for slow travel and possible road closures. The latest road conditions and closure information for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Gimmestad
733 WWUS45 KBOU 270010 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 510 PM MST Sun Dec 26 2021 COZ030-032-270115- /O.EXP.KBOU.WW.Y.0036.000000T0000Z-211227T0000Z/ Jackson County Below 9000 Feet-Grand and Summit Counties Below 9000 Feet- Including the cities of Rand, Granby, North Park, Hot Sulphur Springs, Dillon, Kremmling, Fraser, Grand Lake, Walden, Gould, and Spicer 510 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY HAS EXPIRED... The heaviest snow has moved out of the area. Light snow showers and blowing snow will continue overnight with accumulations less than an inch possible. $$ COZ031-271200- /O.CON.KBOU.WS.W.0012.000000T0000Z-211227T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 510 PM MST Sun Dec 26 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Heavy snow and blowing snow. Total snow accumulations between 7 and 14 inches, with higher amounts north of Rabbit Ears Pass. Winds gusting between 45 and 65 mph creating near blizzard conditions. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Monday. * IMPACTS...Travel will be very difficult at times. Road closures are possible. Near blizzard conditions can be expected in exposed areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ COZ033-034-271200- /O.CON.KBOU.WW.Y.0036.000000T0000Z-211227T1200Z/ 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 Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 510 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Snow and blowing snow expected. Total snow accumulations of 4 to 8 inches. Wind gusts of 40 to 55 mph will be common, with gusts in excess of 70 mph above timberline. * 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 Monday. * IMPACTS...Travel could be very difficult, with intermittent road closures possible. Widespread blowing snow could significantly reduce visibility through Monday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org Consider altering your travel plans. Heavy snowfall is expected to make travel very difficult to impossible. If you do travel, consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Hiris
710 WWUS45 KBOU 270520 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1020 PM MST Sun Dec 26 2021 COZ031-271200- /O.CON.KBOU.WS.W.0012.000000T0000Z-211227T1200Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1020 PM MST Sun Dec 26 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Snow and blowing snow. Total snow accumulations between 7 and 14 inches, with higher amounts north of Rabbit Ears Pass. Winds gusting around 45 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 AM MST Monday. * IMPACTS...Plan on hazardous travel conditions due to snow covered roads and poor visibility in snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ COZ033-034-271200- /O.CON.KBOU.WW.Y.0036.000000T0000Z-211227T1200Z/ 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 Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 1020 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Snow and blowing snow expected. Total snow accumulations of 4 to 8 inches. Wind gusts around 40 mph can be expected over some of the higher 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...Until 5 AM MST Monday. * IMPACTS...Travel will be hazardous due to snow covered roads and patchy blowing snow. 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 && $$ For more information from the National Weather Service, visit https://weather.gov/bou Barjenbruch
464 WWUS45 KBOU 271014 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 314 AM MST Mon Dec 27 2021 ...MORE SNOW FOR THE MOUNTAINS... .Snow showers will continue off and on through the day, and then another round of heavier snow is expected to develop tonight. Mountain roads will remain snow covered and slick for a majority of this period, with hazardous winter travel conditions. Areas of blowing and drifting snow can also be expected over the higher passes and above timberline. COZ031-272300- /O.EXT.KBOU.WS.W.0012.000000T0000Z-211228T1500Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 314 AM MST Mon Dec 27 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 8 AM MST TUESDAY... * WHAT...Snow, heavy at times tonight. Additional snow accumulations between 6 and 14 inches. Winds gusting as high as 50 mph. Snow will decrease by early Tuesday morning. * WHERE...Rabbit Ears Pass. * WHEN...Until 8 AM MST Tuesday. * IMPACTS...Plan on hazardous travel conditions due to snow covered roads and poor visibility in snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing, food, and water. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ COZ033-034-272300- /O.EXT.KBOU.WW.Y.0036.000000T0000Z-211228T1500Z/ 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 Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 314 AM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 8 AM MST TUESDAY... * WHAT...Snow ongoing. Additional snow accumulations between 4 and 9 inches. Winds gusting as high as 50 mph above timberline. * 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 8 AM MST Tuesday. * IMPACTS...Travel will be hazardous due to snow covered roads and patchy blowing snow. 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. Chain and traction laws will likely be enacted for the mountains. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Barjenbruch
820 WWUS45 KBOU 272053 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 153 PM MST Mon Dec 27 2021 ...SNOW AND BLOWING SNOW FOR THE HIGHER MOUNTAINS THROUGH TONIGHT... .Snow showers will increase by early evening, and another round of heavier snow is expected during the night tonight. Mountain roads will remain snow covered and slick. Blowing and drifting snow can be expected over the higher passes and above timberline. COZ031-280600- /O.CON.KBOU.WS.W.0012.000000T0000Z-211228T1500Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 153 PM MST Mon Dec 27 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST TUESDAY... * WHAT...Snow will be heavy at times. Additional snow accumulations between 3 and 10 inches by Tuesday morning. Winds gusting as high as 50 mph. * WHERE...Rabbit Ears Pass. * WHEN...Snow will increase this evening and be heavy at times overnight, then diminish Tuesday morning. * IMPACTS...Plan on hazardous travel conditions due to snow covered roads and poor visibility in snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ COZ033-034-280600- /O.CON.KBOU.WW.Y.0036.000000T0000Z-211228T1500Z/ 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 Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 153 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST TUESDAY... * WHAT...Snow ongoing. Additional snow accumulations between 3 and 5 inches by Tuesday morning. Winds gusting as high as 50 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...Snow will increase this evening and may be heavy at times overnight. The snow will diminish significantly Tuesday morning. * IMPACTS...Travel will be hazardous due to snow covered roads and areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Be prepared for travel delays or intermittent road closures. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Gimmestad
209 WWUS45 KBOU 280351 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 851 PM MST Mon Dec 27 2021 ...SNOW AND BLOWING SNOW FOR THE HIGHER MOUNTAINS TONIGHT... .Bands of moderate to heavy snow showers will continue across the higher terrain tonight. Mountain roads will remain snow covered and slick. Blowing and drifting snow can be expected over the higher passes and above timberline. COZ031-281500- /O.CON.KBOU.WS.W.0012.000000T0000Z-211228T1500Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 851 PM MST Mon Dec 27 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST TUESDAY... * WHAT...Snow will be heavy at times. Additional snow accumulations between 3 and 10 inches by Tuesday morning. Winds gusting as high as 50 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 8 AM MST Tuesday. * IMPACTS...Plan on hazardous travel conditions due to snow covered roads and poor visibility in snow and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ COZ033-034-281500- /O.CON.KBOU.WW.Y.0036.000000T0000Z-211228T1500Z/ 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 Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 851 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST TUESDAY... * WHAT...Snow ongoing. Additional snow accumulations between 3 and 7 inches by Tuesday morning. Winds gusting as high as 50 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 8 AM MST Tuesday. * IMPACTS...Travel will be hazardous due to snow covered roads and areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Be prepared for travel delays or intermittent road closures. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Danielson
921 WWUS45 KBOU 281205 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 505 AM MST Tue Dec 28 2021 ...SNOW AND BLOWING SNOW FOR THE HIGHER MOUNTAINS THIS MORNNG... .Bands of light snow will continue across the higher terrain this morning. Mountain roads will remain snow covered and slick. Blowing and drifting snow can be expected over the higher passes and above timberline. COZ031-281500- /O.CON.KBOU.WS.W.0012.000000T0000Z-211228T1500Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 505 AM MST Tue Dec 28 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... * WHAT...Light snow. Additional snow accumulations between 1 and 2 inches. Winds gusting as high as 50 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 8 AM MST this morning. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip. org Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. && $$ COZ033-034-281500- /O.CON.KBOU.WW.Y.0036.000000T0000Z-211228T1500Z/ 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 Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 505 AM MST Tue Dec 28 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... * WHAT...Light snow. Additional snow accumulations between 1 and 2 inches. Winds gusting as high as 50 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 8 AM MST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning 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 Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. && $$ For more information from the National Weather Service, visit https://weather.gov/bou RPK
273 WWUS45 KBOU 281453 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 753 AM MST Tue Dec 28 2021 COZ031-281600- /O.EXP.KBOU.WS.W.0012.000000T0000Z-211228T1500Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 753 AM MST Tue Dec 28 2021 ...WINTER STORM WARNING WILL EXPIRE AT 8 AM MST THIS MORNING... Light snow will continue today with additional accumulation of an inch or two. Road conditions will generally improve, but there will still be icy areas. $$ COZ033-034-281600- /O.EXP.KBOU.WW.Y.0036.000000T0000Z-211228T1500Z/ 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 Mosquito Range, Indian Peaks, Eisenhower Tunnel, Rocky Mountain National Park, East Slopes Southern Gore Range, Mount Evans, Laramie and Medicine Bow Mountains, Cameron Pass, Breckenridge, Kenosha Mountains, Winter Park, Williams Fork Mountains, Willow Creek Pass, Rabbit Ears Range, and Berthoud Pass 753 AM MST Tue Dec 28 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 8 AM MST THIS MORNING... Light snow will continue today with additional accumulation of an inch or two. Road conditions will generally improve, but there will still be icy areas. $$ For more information from the National Weather Service, visit https://weather.gov/bou Gimmestad
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 25, 3:25 AM MST | Fire Weather Watch | BOU | Arapahoe, Douglas, Elbert, Lincoln, Washington | 12 hr |
| Dec 25, 3:46 AM MST | Winter Storm Watch | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 10 hr |
| Dec 25, 1:48 PM MST | Winter Weather Advisory | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 66 hr |
| Dec 25, 3:34 PM MST | Red Flag Warning | BOU | Elbert, Lincoln | 25 hr |
Nearby
Winter Storm Warnings in Colorado, 2021Every winter storm warning in 2021
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.