454
WWUS45 KBOU 060637
WSWBOU
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1237 AM MDT WED MAY 6 2026
COZ033-035-061845-
/O.CON.KBOU.WS.W.0005.000000T0000Z-260506T2100Z/
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST
GRAND/NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-LARIMER AND
BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-
INCLUDING THE CITIES OF CAMERON PASS, WILLOW CREEK PASS, RED FEATHER
LAKES, NEDERLAND, ROCKY MOUNTAIN NATIONAL PARK, LARAMIE AND MEDICINE
BOW MOUNTAINS, ESTES PARK, RABBIT EARS RANGE, AND GLENDEVEY
1237 AM MDT WED MAY 6 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
* WHAT...HEAVY SNOW. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 3 AND 8
INCHES.
* WHERE...ROCKY MOUNTAIN NATIONAL PARK, THE MEDICINE BOW RANGE, AND
THE NORTHERN FRONT RANGE FOOTHILLS, INCLUDING RED FEATHER LAKES,
ESTES PARK, AND NEDERLAND.
* WHEN...UNTIL 3 PM MDT THIS AFTERNOON.
* IMPACTS...HEAVY SNOW ACCUMULATING ON TREES MAY RESULT IN BROKEN
TREE LIMBS, DOWNED POWERLINES, AND SCATTERED POWER OUTAGES. TRAVEL
COULD BE VERY DIFFICULT DUE TO THE DEPTH OF HEAVY, WET SNOW.
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.
PREPARE FOR POSSIBLE POWER OUTAGES BY CHARING CELL PHONES AND
PORTABLE CHARGERS AHEAD OF TIME.
COZ034-036-061845-
/O.CON.KBOU.WS.W.0005.000000T0000Z-260506T2100Z/
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST
BOULDER/GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES
ABOVE 9000 FEET-JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE
6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW
9000 FEET-
INCLUDING THE CITIES OF WILLIAMS FORK MOUNTAINS, GEORGETOWN, CENTRAL
CITY, WESTCREEK, EAST SLOPES SOUTHERN GORE RANGE, KENOSHA MOUNTAINS,
IDAHO SPRINGS, EISENHOWER TUNNEL, EVERGREEN, INDIAN PEAKS, EAST
SLOPES MOSQUITO RANGE, BRECKENRIDGE, WINTER PARK, BAILEY, BERTHOUD
PASS, AND MOUNT BLUE SKY
1237 AM MDT WED MAY 6 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
* WHAT...HEAVY SNOW. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 4 AND 6
INCHES.
* WHERE...THE MOUNTAINS OF SUMMIT COUNTY, THE MOSQUITO RANGE, THE
INDIAN PEAKS WILDERNESS, AND THE SOUTHERN FRONT RANGE FOOTHILLS.
* WHEN...UNTIL 3 PM MDT THIS AFTERNOON.
* IMPACTS...HEAVY SNOW WILL ACCUMULATE ON TREE BRANCHES AND
POWERLINES, POSSIBLY CAUSING THEM TO BREAK AND LEAD TO POWER
OUTAGES. TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
WILL IMPACT THE THE WEDNESDAY MORNING COMMUTE.
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.
PREPARE FOR POSSIBLE POWER OUTAGES BY CHARING CELL PHONES AND
PORTABLE CHARGERS AHEAD OF TIME.
COZ038>041-061845-
/O.CON.KBOU.WS.W.0005.000000T0000Z-260506T2100Z/
LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY-BOULDER AND
JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY-NORTH
DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE
COUNTIES/EAST BROOMFIELD COUNTY-ELBERT/CENTRAL AND EAST DOUGLAS
COUNTIES ABOVE 6000 FEET-
INCLUDING THE CITIES OF NUNN, BOULDER, LOVELAND, BRIGHTON, PARKER,
LARKSPUR, LITTLETON, LAKEWOOD, DENVER INTERNATIONAL AIRPORT,
HIGHLANDS RANCH, ARVADA, KIOWA, CITY OF DENVER, AURORA, CASTLE ROCK,
FORT COLLINS, ELBERT, HEREFORD, FONDIS, LONGMONT, AND GOLDEN
1237 AM MDT WED MAY 6 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
* WHAT...HEAVY SNOW. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 2 AND 4
INCHES.
* WHERE...FORT COLLINS, BOULDER, DENVER METRO AREA, AND CASTLE ROCK.
* WHEN...UNTIL 3 PM MDT THIS AFTERNOON.
* IMPACTS...HEAVY SNOW ACCUMULATING ON TREES MAY RESULT IN BROKEN
TREE LIMBS, DOWNED POWERLINES, AND SCATTERED POWER OUTAGES. DESPITE
LESSER ACCUMULATIONS ON ROADWAYS, SLICK AND HAZARDOUS CONDITIONS
ARE STILL POSSIBLE FOR THE WEDNESDAY MORNING COMMUTE.
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.
PREPARE FOR POSSIBLE POWER OUTAGES BY CHARING CELL PHONES AND
PORTABLE CHARGERS AHEAD OF TIME.
COZ030-032-037-043-045-046-061845-
/O.CON.KBOU.WW.Y.0017.000000T0000Z-260506T2100Z/
JACKSON COUNTY BELOW 9000 FEET-GRAND AND SUMMIT COUNTIES BELOW
9000 FEET-CENTRAL AND SOUTHEAST PARK COUNTY-CENTRAL AND SOUTH
WELD COUNTY-CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-NORTH
AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-
INCLUDING THE CITIES OF SPICER, AGATE, GRAND LAKE, BYERS, NORTH PARK,
ROGGEN, BENNETT, FRASER, EATON, KREMMLING, WALDEN, DEER TRAIL, LIMON,
SOUTH PARK, LAKE GEORGE, GREELEY, GOULD, GRANBY, HOT SULPHUR SPRINGS,
FAIRPLAY, MATHESON, FORT LUPTON, HARTSEL, DILLON, HUGO, RAND, AND
LEADER
1237 AM MDT WED MAY 6 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
* WHAT...SNOW. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 2 AND 4 INCHES.
* WHERE...PORTIONS OF CENTRAL, EAST CENTRAL, NORTH CENTRAL, AND
NORTHEAST COLORADO.
* WHEN...UNTIL 3 PM MDT THIS AFTERNOON.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS, WHICH MAY IMPACT THE
WEDNESDAY MORNING COMMUTE. THE HEAVY AND WET NATURE OF THE SNOW MAY
LEAD TO DAMAGE TO TREE LIMBS.
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.
COZ031-061800-
/O.CON.KBOU.WW.Y.0017.000000T0000Z-260506T1800Z/
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
INCLUDING THE CITIES OF MT ZIRKEL
1237 AM MDT WED MAY 6 2026
..WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY
* WHAT...SNOW. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 1 AND 3 INCHES.
WINDS GUSTING AS HIGH AS 35 MPH.
* WHERE...RABBIT EARS PASS.
* WHEN...UNTIL NOON MDT TODAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS.
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.
IF TRAVELING TO THE MOUNTAINS, BE PREPARED FOR WINTER DRIVING
CONDITIONS. CHECK COTRIP.ORG FOR ROAD CLOSURES AND TRACTION LAWS.
COZ042-044-049-061845-
/O.CON.KBOU.WW.Y.0017.000000T0000Z-260506T2100Z/
NORTHEAST WELD COUNTY-MORGAN COUNTY-WASHINGTON COUNTY-
INCLUDING THE CITIES OF BRUSH, GROVER, GOODRICH, PAWNEE BUTTES,
STONEHAM, RAYMER, COPE, WIGGINS, AKRON, LAST CHANCE, BRIGGSDALE, FORT
MORGAN, AND OTIS
1237 AM MDT WED MAY 6 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT THIS
AFTERNOON...
* WHAT...SNOW. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 1 AND 3 INCHES.
* WHERE...BRIGGSDALE, FORT MORGAN, AND AKRON.
* WHEN...UNTIL 3 PM MDT THIS AFTERNOON.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS, MAINLY LATE TONIGHT
THROUGH WEDNESDAY 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.
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE, VISIT
HTTPS://WEATHER.GOV/BOU
63
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