Alert archive / Colorado / Winter Storm Warnings in 2021
Winter Storm Warning 10, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Dec 8, 2021, 11:25 AM MST for 4 counties in Colorado. It took effect at Dec 8, 2021, 5:00 PM MST. It was in force for 48 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 8, 2021, 11:25 AM MST (18:25 UTC)
- In effect from
- Dec 8, 2021, 5:00 PM MST
- Expired
- Dec 10, 2021, 5:00 PM MST
- In force
- 48 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Grand County, CO, Jackson County, CO, Larimer County, CO
The radar
The Cheyenne radar (KCYS), 121 km from the middle of the area, began a volume at 18:26 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 9, 4:20 PM MST | SNOW 1 | 10 Nne Silverthorne, CO | MIDDLE FORK CAMP SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 1 | 10 Nne Silverthorne, CO | MIDDLE FORK CAMP SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 1 | 1 Sw Eldora, CO | LAKE ELDORA SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 1 | 1 Sw Eldora, CO | LAKE ELDORA SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 1.1 | 11 S Rabbit Ears Pass, CO | BUFFALO PARK SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 1.1 | 11 S Rabbit Ears Pass, CO | BUFFALO PARK SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 2.1 | 1 Nnw Cameron Pass, CO | JOE WRIGHT SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 2.1 | 1 Nnw Cameron Pass, CO | JOE WRIGHT SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 2.1 | 3 Sw Ward, CO | NIWOT SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 2.1 | 3 Sw Ward, CO | NIWOT SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 2.1 | 7 Nw Red Feather Lakes, CO | BLACK MOUNTAIN SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 2.1 | 7 Nw Red Feather Lakes, CO | BLACK MOUNTAIN SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 2.1 | 8 Sse Cameron Pass, CO | PHANTOM VALLEY SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 2.1 | 8 Sse Cameron Pass, CO | PHANTOM VALLEY SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 3 S Brainard Lake, CO | UNIVERSITY CAMP SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 3 S Brainard Lake, CO | UNIVERSITY CAMP SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 3 Sw Meeker Park, CO | COPELAND LAKE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 3 Sw Meeker Park, CO | COPELAND LAKE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 5 Ssw Glendevey, CO | RAWAH SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 5 Ssw Glendevey, CO | RAWAH SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 5 W Berthoud Falls, CO | JONES PASS SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 5 W Berthoud Falls, CO | JONES PASS SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 5 Wsw Grand Lake, CO | STILLWATER CREEK SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 5 Wsw Grand Lake, CO | STILLWATER CREEK SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 6 W Arapahoe Peak, CO | HIGH LONESOME SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 6 W Arapahoe Peak, CO | HIGH LONESOME SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 8 Sse Rand, CO | WILLOW CREEK PASS SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 3.1 | 8 Sse Rand, CO | WILLOW CREEK PASS SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 3.2 | 3 Wnw Pingree Park, CO | HOURGLASS LAKE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 3.2 | 3 Wnw Pingree Park, CO | HOURGLASS LAKE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 3.2 | 6 E Cameron Pass, CO | LONG DRAW RESERVOIR SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 3.2 | 6 E Cameron Pass, CO | LONG DRAW RESERVOIR SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 4.2 | 4 S Longs Peak, CO | WILD BASIN SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 4.2 | 4 S Longs Peak, CO | WILD BASIN SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 4.2 | 7 Sse Cameron Pass, CO | LAKE IRENE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 4.2 | 7 Sse Cameron Pass, CO | LAKE IRENE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 4.2 | 9 Se Cameron Pass, CO | WILLOW PARK SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 4.2 | 9 Se Cameron Pass, CO | WILLOW PARK SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 5.2 | 3 Nne Mount Audubon, CO | SAWTOOTH SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 5.2 | 3 Nne Mount Audubon, CO | SAWTOOTH SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 5.2 | 4 Nnw Longs Peak, CO | BEAR LAKE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 5.2 | 4 Nnw Longs Peak, CO | BEAR LAKE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 5.2 | 9 E Glendevey, CO | DEADMAN HILL SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 5.2 | 9 E Glendevey, CO | DEADMAN HILL SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | SNOW 5.2 | 9 Sse Spicer, CO | ARAPAHO RIDGE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | SNOW 5.2 | 9 Sse Spicer, CO | ARAPAHO RIDGE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | HEAVY SNOW 7.4 | 8 Nw Glendevey, CO | ROACH SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | HEAVY SNOW 7.4 | 8 Nw Glendevey, CO | ROACH SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | HEAVY SNOW 8.4 | 9 Sse Gould, CO | NEVER SUMMER SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | HEAVY SNOW 8.4 | 9 Sse Gould, CO | NEVER SUMMER SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 4:20 PM MST | HEAVY SNOW 11.6 | 4 Se Mount Zirkel, CO | ZIRKEL SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 4:20 PM MST | HEAVY SNOW 11.6 | 4 Se Mount Zirkel, CO | ZIRKEL SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 2 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 9:59 PM MST | SNOW 1 | 10 Nne Silverthorne, CO | MIDDLE FORK CAMP SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 9 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 9:59 PM MST | SNOW 1 | 10 Nne Silverthorne, CO | MIDDLE FORK CAMP SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 9 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 9:59 PM MST | SNOW 1.1 | 11 S Rabbit Ears Pass, CO | BUFFALO PARK SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 9 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 9:59 PM MST | SNOW 3.1 | 5 W Berthoud Falls, CO | JONES PASS SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 9 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 9:59 PM MST | SNOW 3.1 | 5 W Berthoud Falls, CO | JONES PASS SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 9 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO. |
| Dec 9, 9:59 PM MST | SNOW 3.1 | 5 Wsw Grand Lake, CO | STILLWATER CREEK SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 9 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 9:59 PM MST | SNOW 4.2 | 3 Sw Meeker Park, CO | COPELAND LAKE SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 9 PM 12/09/2021 ESTIMATED USING A 10.5 TO 1 SNOW-TO-LIQUID RATIO |
| Dec 9, 9:59 PM MST | SNOW 4.2 | 6 E Cameron Pass, CO | LONG DRAW RESERVOIR SNOTEL SNOWFALL BETWEEN 5 PM 12/08/2021 AND 9 PM 12/09/2021 ESTIMATED USING A 10.5 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
Denver, CO (KDNR), launched 12:00Z, 6.4 hours before the alert went out and 227 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
- 3026 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
122 WWUS45 KBOU 081825 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 1125 AM MST Wed Dec 8 2021 COZ031-090600- /O.UPG.KBOU.WS.A.0007.211209T0000Z-211211T0000Z/ /O.NEW.KBOU.WS.W.0010.211209T0000Z-211211T0000Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 1125 AM MST Wed Dec 8 2021 ...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 15 and 30 inches. Winds gusting as high as 50 mph. * WHERE...Rabbit Ears Pass. * WHEN...From 5 PM this afternoon to 5 PM MST Friday. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip. org && $$ COZ033-090600- /O.UPG.KBOU.WS.A.0007.211209T0000Z-211211T0000Z/ /O.NEW.KBOU.WS.W.0010.211209T1200Z-211211T0000Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet- Including the cities of Laramie and Medicine Bow Mountains, Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park, and Willow Creek Pass 1125 AM MST Wed Dec 8 2021 ...WINTER STORM WARNING IN EFFECT FROM 5 AM THURSDAY TO 5 PM MST FRIDAY... * WHAT...Heavy snow possible. Total snow accumulations between 10 and 20 inches possible. Winds could gust as high as 50 mph. * WHERE...Rocky Mountain National Park and the Medicine Bow Range. * WHEN...From 5 AM Thursday to 5 PM MST Friday. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip. org && $$ COZ034-090600- /O.NEW.KBOU.WW.Y.0032.211209T1200Z-211211T0000Z/ 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 Indian Peaks, Eisenhower Tunnel, East Slopes Southern Gore Range, Mount Evans, East Slopes Mosquito Range, Breckenridge, Winter Park, Williams Fork Mountains, Kenosha Mountains, and Berthoud Pass 1125 AM MST Wed Dec 8 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM THURSDAY TO 5 PM MST FRIDAY... * WHAT...Snow expected. Total snow accumulations between 4 and 10 inches. Winds gusting as high as 50 mph. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...From 5 AM Thursday to 5 PM MST Friday. * IMPACTS...Roads will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ For more information from the National Weather Service, visit https://weather.gov/bou Hiris
8 follow-up statements
590 WWUS45 KBOU 090238 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 738 PM MST Wed Dec 8 2021 COZ031-091300- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 738 PM MST Wed Dec 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 15 and 30 inches. Winds gusting as high as 50 mph. Heaviest snowfall Thursday through Thursday evening. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 PM MST Friday. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip. org && $$ COZ033-091300- /O.CON.KBOU.WS.W.0010.211209T1200Z-211211T0000Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet- Including the cities of Laramie and Medicine Bow Mountains, Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park, and Willow Creek Pass 738 PM MST Wed Dec 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 10 and 20 inches possible. Winds could gust as high as 50 mph. Heaviest snowfall Thursday through Thursday evening. * WHERE...Rocky Mountain National Park and the Medicine Bow Range. * WHEN...From 5 AM Thursday to 5 PM MST Friday. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ COZ034-091300- /O.CON.KBOU.WW.Y.0032.211209T1200Z-211211T0000Z/ South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Indian Peaks, Eisenhower Tunnel, East Slopes Southern Gore Range, Mount Evans, East Slopes Mosquito Range, Breckenridge, Winter Park, Williams Fork Mountains, Kenosha Mountains, and Berthoud Pass 738 PM MST Wed Dec 8 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM THURSDAY TO 5 PM MST FRIDAY... * WHAT...Snow expected, heaviest late Thursday through Thursday night. Total snow accumulations between 4 and 10 inches. Winds gusting as high as 50 mph. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...From 5 AM Thursday to 5 PM MST Friday. * IMPACTS...Roads will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Mensch
782 WWUS45 KBOU 090959 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 259 AM MST Thu Dec 9 2021 COZ031-092200- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 259 AM MST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 15 and 30 inches. Winds gusting as high as 50 mph. Heaviest snowfall Thursday through Thursday evening. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 PM MST Friday. * IMPACTS...Travel could be very difficult to impossible. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip. org && $$ COZ033-092200- /O.CON.KBOU.WS.W.0010.211209T1200Z-211211T0000Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet- Including the cities of Laramie and Medicine Bow Mountains, Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park, and Willow Creek Pass 259 AM MST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 10 and 20 inches possible. Winds could gust as high as 50 mph. Heaviest snowfall Thursday through Thursday evening. * WHERE...Rocky Mountain National Park and the Medicine Bow Range. * WHEN...Until 5 PM MST Friday. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ COZ034-092200- /O.CON.KBOU.WW.Y.0032.211209T1200Z-211211T0000Z/ 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 Indian Peaks, Eisenhower Tunnel, East Slopes Southern Gore Range, Mount Evans, East Slopes Mosquito Range, Breckenridge, Winter Park, Williams Fork Mountains, Kenosha Mountains, and Berthoud Pass 259 AM MST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Snow expected, heaviest late Thursday through Thursday night. Total snow accumulations between 4 and 10 inches. Winds gusting as high as 50 mph. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 5 PM MST Friday. * IMPACTS...Roads will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Cooper
144 WWUS45 KBOU 091003 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 303 AM MST Thu Dec 9 2021 COZ031-092215- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 303 AM MST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 15 and 30 inches. Winds gusting as high as 50 mph. Heaviest snowfall today through this evening. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 PM MST Friday. * IMPACTS...Travel could be very difficult to impossible. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip. org && $$ COZ033-092215- /O.CON.KBOU.WS.W.0010.211209T1200Z-211211T0000Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet- Including the cities of Laramie and Medicine Bow Mountains, Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park, and Willow Creek Pass 303 AM MST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations between 10 and 20 inches possible. Winds could gust as high as 50 mph. Heaviest snowfall today through this evening. * WHERE...Rocky Mountain National Park and the Medicine Bow Range. * WHEN...Until 5 PM MST Friday. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ COZ034-092215- /O.CON.KBOU.WW.Y.0032.211209T1200Z-211211T0000Z/ South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Indian Peaks, Eisenhower Tunnel, East Slopes Southern Gore Range, Mount Evans, East Slopes Mosquito Range, Breckenridge, Winter Park, Williams Fork Mountains, Kenosha Mountains, and Berthoud Pass 303 AM MST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Snow expected, heaviest late today through tonight. Total snow accumulations between 4 and 10 inches. Winds gusting as high as 50 mph. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 5 PM MST Friday. * IMPACTS...Roads will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Cooper
622 WWUS45 KBOU 092130 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 230 PM MST Thu Dec 9 2021 COZ031-101300- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 230 PM MST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Heavy snow expected. New snow accumulations between 10 and 24 inches. Winds gusting as high as 50 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 PM MST Friday. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ COZ033-101300- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet- Including the cities of Laramie and Medicine Bow Mountains, Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park, and Willow Creek Pass 230 PM MST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Heavy snow expected. New snow accumulations between 8 and 16 inches possible. Winds could gust as high as 50 mph. * WHERE...Rocky Mountain National Park and the Medicine Bow Range. * WHEN...Until 5 PM MST Friday. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ COZ034-101300- /O.CON.KBOU.WW.Y.0032.000000T0000Z-211211T0000Z/ 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 Indian Peaks, Eisenhower Tunnel, East Slopes Southern Gore Range, Mount Evans, East Slopes Mosquito Range, Breckenridge, Winter Park, Williams Fork Mountains, Kenosha Mountains, and Berthoud Pass 230 PM MST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Snow expected, heaviest late today through tonight. Total snow accumulations between 4 and 10 inches. Winds gusting as high as 50 mph. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 5 PM MST Friday. * IMPACTS...Roads will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Meier
285 WWUS45 KBOU 100445 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 945 PM MST Thu Dec 9 2021 COZ031-101645- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 945 PM MST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Heavy snow expected. New snow accumulations between 10 and 20 inches. Winds gusting as high as 50 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 PM MST Friday. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ COZ033-101645- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet- Including the cities of Laramie and Medicine Bow Mountains, Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park, and Willow Creek Pass 945 PM MST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Heavy snow expected. New snow accumulations between 8 and 16 inches possible. Winds could gust as high as 50 mph. * WHERE...Rocky Mountain National Park and the Medicine Bow Range. * WHEN...Until 5 PM MST Friday. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip. org && $$ COZ034-101645- /O.CON.KBOU.WW.Y.0032.000000T0000Z-211211T0000Z/ South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Indian Peaks, Eisenhower Tunnel, East Slopes Southern Gore Range, Mount Evans, East Slopes Mosquito Range, Breckenridge, Winter Park, Williams Fork Mountains, Kenosha Mountains, and Berthoud Pass 945 PM MST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST FRIDAY... * WHAT...Snow expected, heaviest late today through tonight. Total snow accumulations between 4 and 10 inches. Winds gusting as high as 50 mph. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 5 PM MST Friday. * IMPACTS...Roads will likely become slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ For more information from the National Weather Service, visit https://weather.gov/bou Danielson
387 WWUS45 KBOU 101039 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 339 AM MST Fri Dec 10 2021 COZ031-110000- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 339 AM MST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow, heavy at times. New snow accumulations between 6 and 11 inches. Winds gusting as high as 50 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ COZ033-110000- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet- Including the cities of Laramie and Medicine Bow Mountains, Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park, and Willow Creek Pass 339 AM MST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow, heavy at times. New snow accumulations between 6 and 11 inches possible. Winds could gust as high as 50 mph. * WHERE...Rocky Mountain National Park and the Medicine Bow Range. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ COZ034-110000- /O.CON.KBOU.WW.Y.0032.000000T0000Z-211211T0000Z/ 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 Indian Peaks, Eisenhower Tunnel, East Slopes Southern Gore Range, Mount Evans, East Slopes Mosquito Range, Breckenridge, Winter Park, Williams Fork Mountains, Kenosha Mountains, and Berthoud Pass 339 AM MST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow, with additional accumulations between 4 and 8 inches. Winds gusting as high as 50 mph. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Roads will likely be slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. Chain and traction laws will possibly be enacted for the mountains. If traveling to the mountains, be prepared for winter driving conditions. && $$ For more information from the National Weather Service, visit https://weather.gov/bou Cooper
920 WWUS45 KBOU 102047 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 147 PM MST Fri Dec 10 2021 COZ031-110000- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ West Jackson and West Grand Counties Above 9000 Feet- Including the cities of Mt Zirkel 147 PM MST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Heavy snow ongoing. Additional snow accumulations up to three inches. Winds gusting as high as 35 mph. * WHERE...Rabbit Ears Pass. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ COZ033-110000- /O.CON.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet- Including the cities of Laramie and Medicine Bow Mountains, Rabbit Ears Range, Cameron Pass, Rocky Mountain National Park, and Willow Creek Pass 147 PM MST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow ongoing. Additional snow accumulations up to two inches. Winds gusting as high as 40 mph. * WHERE...Rocky Mountain National Park and the Medicine Bow Range. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Snow covered roads will make travel hazardous. Travel may become very difficult to impossible due to heavy snowfall on roadways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ COZ034-110000- /O.CON.KBOU.WW.Y.0032.000000T0000Z-211211T0000Z/ South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Indian Peaks, Eisenhower Tunnel, East Slopes Southern Gore Range, Mount Evans, East Slopes Mosquito Range, Breckenridge, Winter Park, Williams Fork Mountains, Kenosha Mountains, and Berthoud Pass 147 PM MST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow ongoing. Additional snow accumulations up to two inches. Winds gusting as high as 45 mph. * WHERE...The Mountains of Summit County, the Mosquito Range, and the Indian Peaks. * WHEN...Until 5 PM MST this afternoon. * IMPACTS...Roads will likely be slick and hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Roads will be slick resulting in slow and hazardous travel. Allow extra time to reach your destination. The latest road conditions for Colorado can be obtained by calling 5 1 1 or by going to www.cotrip.org && $$ For more information from the National Weather Service, visit https://weather.gov/bou Hiris
975 WWUS45 KBOU 102354 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver CO 454 PM MST Fri Dec 10 2021 COZ031-033-110100- /O.EXP.KBOU.WS.W.0010.000000T0000Z-211211T0000Z/ West Jackson and West Grand Counties Above 9000 Feet-South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet- Including the cities of Rocky Mountain National Park, Mt Zirkel, Laramie and Medicine Bow Mountains, Cameron Pass, Willow Creek Pass, and Rabbit Ears Range 454 PM MST Fri Dec 10 2021 ...WINTER STORM WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... A few flurries may fall tonight across the mountains but the accumulating snowfall has ended. Webcams show many slick and snow covered roads so caution is advised when traveling in the mountains. $$ COZ034-110100- /O.EXP.KBOU.WW.Y.0032.000000T0000Z-211211T0000Z/ South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Indian Peaks, Eisenhower Tunnel, East Slopes Southern Gore Range, Mount Evans, East Slopes Mosquito Range, Breckenridge, Winter Park, Williams Fork Mountains, Kenosha Mountains, and Berthoud Pass 454 PM MST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... A few flurries may fall tonight across the mountains but the accumulating snowfall has ended. Webcams show many slick and snow covered roads so caution is advised when traveling in the mountains. $$ For more information from the National Weather Service, visit https://weather.gov/bou Danielson
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 8, 11:25 AM MST | Winter Weather Advisory | BOU | Boulder, Clear Creek, Gilpin, Grand, Jefferson, Park and 1 more | 54 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.