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WWUS45 KBOU 210355
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver CO
855 PM MST Sat Dec 20 2025

COZ031-033-034-210500-
/O.CAN.KBOU.WW.Y.0033.000000T0000Z-251221T0700Z/
West Jackson and West Grand Counties Above 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 East Slopes Mosquito Range, Kenosha
Mountains, East Slopes Southern Gore Range, Mount Blue Sky, Mt
Zirkel, Cameron Pass, Berthoud Pass, Willow Creek Pass, Williams Fork
Mountains, Winter Park, Indian Peaks, Laramie and Medicine Bow
Mountains, Rocky Mountain National Park, Rabbit Ears Range,
Breckenridge, and Eisenhower Tunnel
855 PM MST Sat Dec 20 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

There may still be some slick spots on roads, mainly for the high
passes, but the main threat has ended.

$$

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

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