672
WWUS45 KBOU 171750
WSWBOU
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1150 AM MDT SUN MAY 17 2026
COZ031-181200-
/O.EXB.KBOU.WW.Y.0018.260518T0600Z-260519T0300Z/
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
INCLUDING THE CITIES OF MT ZIRKEL
1150 AM MDT SUN MAY 17 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM
MDT MONDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS 5 TO 14 INCHES,
HEAVIEST IN THE PARK RANGE. WINDS GUSTING AS HIGH AS 30 MPH.
* WHERE...RABBIT EARS PASS.
* WHEN...FROM MIDNIGHT TONIGHT TO 9 PM MDT MONDAY.
* IMPACTS...TRAVEL COULD BE SLIPPERY WITH SNOW COVERED ROADS AT
TIMES, ESPECIALLY LATE TONIGHT AND DURING THE PERIODS OF HEAVIEST
SNOWFALL ON MONDAY. THE HAZARDOUS CONDITIONS MAY IMPACT THE MONDAY
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.
COZ033-034-181200-
/O.EXT.KBOU.WW.Y.0018.260518T0600Z-260519T0300Z/
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, WINTER PARK,
CAMERON PASS, ROCKY MOUNTAIN NATIONAL PARK, WILLOW CREEK PASS,
WILLIAMS FORK MOUNTAINS, MOUNT BLUE SKY, BRECKENRIDGE, BERTHOUD PASS,
EAST SLOPES MOSQUITO RANGE, RABBIT EARS RANGE, LARAMIE AND MEDICINE
BOW MOUNTAINS, INDIAN PEAKS, EISENHOWER TUNNEL, AND KENOSHA MOUNTAINS
1150 AM MDT SUN MAY 17 2026
...WINTER WEATHER ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 9
PM MDT MONDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS OF 4 TO 12 INCHES
OVER MOST OF THE ADVISORY AREA. HOWEVER, LITTLE IF ANY ACCUMULATION
IN THE VALLEYS OF SUMMIT COUNTY WHILE THE HEAVIEST AMOUNTS OCCUR IN
THE MOUNTAINS NORTH OF I-70.
* WHERE...ROCKY MOUNTAIN NATIONAL PARK AND THE MEDICINE BOW RANGE,
THE MOUNTAINS OF SUMMIT COUNTY, THE MOSQUITO RANGE, AND THE INDIAN
PEAKS.
* WHEN...FROM MIDNIGHT TONIGHT TO 9 PM MDT MONDAY.
* IMPACTS...TRAVEL COULD BE SLIPPERY WITH SNOW COVERED ROADS AT
TIMES, ESPECIALLY LATE TONIGHT AND DURING THE PERIODS OF HEAVIEST
SNOWFALL ON MONDAY. THE HAZARDOUS CONDITIONS MAY IMPACT THE MONDAY
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.
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE, VISIT
HTTPS://WEATHER.GOV/BOU
20
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