815
WWUS45 KBOU 190255
WSWBOU
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
855 PM MDT MON MAY 18 2026
COZ033-190400-
/O.EXP.KBOU.WS.W.0006.000000T0000Z-260519T0300Z/
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, WILLOW CREEK PASS, AND ROCKY MOUNTAIN
NATIONAL PARK
855 PM MDT MON MAY 18 2026
..WINTER STORM WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING
WHILE LIGHT SNOW MAY CONTINUE THROUGH THE EARLY OVERNIGHT HOURS,
LITTLE ADDITIONAL ACCUMULATION IS EXPECTED TONIGHT. THEREFORE, THE
WINTER STORM WARNING WILL BE ALLOWED TO EXPIRE.
COZ030-031-034-035-190400-
/O.EXP.KBOU.WW.Y.0018.000000T0000Z-260519T0300Z/
JACKSON COUNTY BELOW 9000 FEET-WEST JACKSON AND WEST GRAND
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-
INCLUDING THE CITIES OF BRECKENRIDGE, EAST SLOPES MOSQUITO RANGE,
INDIAN PEAKS, WALDEN, GOULD, RAND, WINTER PARK, ESTES PARK, BERTHOUD
PASS, NORTH PARK, EAST SLOPES SOUTHERN GORE RANGE, MOUNT BLUE SKY, MT
ZIRKEL, EISENHOWER TUNNEL, SPICER, RED FEATHER LAKES, WILLIAMS FORK
MOUNTAINS, NEDERLAND, KENOSHA MOUNTAINS, AND GLENDEVEY
855 PM MDT MON MAY 18 2026
..WINTER WEATHER ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING
LIGHT SNOW IS EXPECTED TO CONTINUE OVER THE NEXT FEW HOURS, BUT ANY
ADDITIONAL ACCUMULATION SHOULD BE LIGHT. LINGERING TRAVEL IMPACTS ARE
POSSIBLE OVERNIGHT, MAINLY ACROSS THE HIGHER ELEVATIONS OF THE
NORTHERN FRONT RANGE FOOTHILLS.
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE, VISIT
HTTPS://WEATHER.GOV/BOU
HIRIS
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