027
WWUS75 KRIW 201923
NPWRIW
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1223 PM MST MON JAN 20 2025
WYZ001-002-211200-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1700Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF OLD FAITHFUL, MAMMOTH, AND LAKE
1223 PM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY
* WHAT...VERY COLD WIND CHILL TEMPERATURES WILL DROP TO 20 TO 30
DEGREES BELOW ZERO OVERNIGHT.
* WHERE...ABSAROKA MOUNTAINS AND YELLOWSTONE NATIONAL PARK.
* WHEN...UNTIL 10 AM MST TUESDAY.
* IMPACTS...THE DANGEROUSLY COLD WIND CHILLS AS LOW AS 30 BELOW ZERO
COULD CAUSE FROSTBITE ON EXPOSED SKIN IN AS LITTLE AS 10 MINUTES.
* ADDITIONAL DETAILS...DAYTIME HIGHS TODAY WILL CLIMB INTO THE
SINGLE DIGITS ABOVE ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO BE OUTDOORS. WEAR APPROPRIATE
CLOTHING, A HAT, AND GLOVES.
WYZ003>007-010-011-016>020-022-211200-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1700Z/
CODY FOOTHILLS-NORTH BIGHORN BASIN-SOUTHWEST BIGHORN BASIN-
SOUTHEAST BIGHORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS-NORTHEAST
JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY-UPPER WIND RIVER BASIN-
WIND RIVER BASIN-LANDER FOOTHILLS-GREEN MOUNTAINS AND RATTLESNAKE
RANGE-NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-
INCLUDING THE CITIES OF MEETEETSE, CODY, BUFFALO, LOVELL,
THERMOPOLIS, SHELL, JEFFREY CITY, BASIN, CLARK, LANDER, GREYBULL,
WORLAND, KAYCEE, DUBOIS, POWELL, TEN SLEEP, RIVERTON, CASPER, AND
SHOSHONI
1223 PM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY
* WHAT...VERY COLD WIND CHILL TEMPERATURES WILL DROP TO 20 TO 30
DEGREES BELOW ZERO OVERNIGHT.
* WHERE...PORTIONS OF CENTRAL, NORTH CENTRAL, AND NORTHWEST WYOMING.
* WHEN...UNTIL 10 AM MST TUESDAY.
* IMPACTS...THE DANGEROUSLY COLD WIND CHILLS AS LOW AS 30 BELOW ZERO
COULD CAUSE FROSTBITE ON EXPOSED SKIN IN AS LITTLE AS 10 MINUTES.
* ADDITIONAL DETAILS...DAYTIME HIGHS TODAY WILL CLIMB TO NEAR ZERO
OR UP TO THE SINGLE DIGITS ABOVE ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO BE OUTDOORS. WEAR APPROPRIATE
CLOTHING, A HAT, AND GLOVES.
KEEP PETS INDOORS AS MUCH AS POSSIBLE.
MAKE FREQUENT CHECKS ON OLDER FAMILY, FRIENDS, AND NEIGHBORS. ENSURE
PORTABLE HEATERS ARE USED CORRECTLY. DO NOT USE GENERATORS OR GRILLS
INSIDE.
WYZ008-009-211200-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1200Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
1223 PM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY
* WHAT...VERY COLD WIND CHILL TEMPERATURES WILL DROP TO 25 TO 35
DEGREES BELOW ZERO AFTER SUNSET.
* WHERE...BIGHORN MOUNTAINS. THIS INCLUDES POWDER RIVER PASS AND
GRANITE PASS.
* WHEN...UNTIL 5 AM MST TUESDAY.
* IMPACTS...THE DANGEROUSLY COLD WIND CHILLS AS LOW AS 40 BELOW ZERO
COULD CAUSE FROSTBITE ON EXPOSED SKIN IN AS LITTLE AS 10 MINUTES.
* ADDITIONAL DETAILS...DAYTIME HIGHS TODAY WILL WARM UP SLIGHTLY BUT
WILL REMAIN BELOW ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO BE OUTDOORS. WEAR APPROPRIATE
CLOTHING, A HAT, AND GLOVES.
WYZ012-013-211200-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1700Z/
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-
INCLUDING THE CITIES OF JACKSON
1223 PM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY
* WHAT...VERY COLD WIND CHILL TEMPERATURES WILL DROP TO 20 TO 30
DEGREES BELOW ZERO OVERNIGHT.
* WHERE...JACKSON HOLE AND TETON AND GROS VENTRE MOUNTAINS.
* WHEN...UNTIL 10 AM MST TUESDAY.
* IMPACTS...THE DANGEROUSLY COLD WIND CHILLS AS LOW AS 30 BELOW ZERO
COULD CAUSE FROSTBITE ON EXPOSED SKIN IN AS LITTLE AS 10 MINUTES.
* ADDITIONAL DETAILS...OUTDOOR RECREATIONISTS SHOULD DRESS IN LAYERS
AND COVER EXPOSED SKIN. DAYTIME HIGHS TODAY WILL CLIMB TO NEAR
ZERO OR UP TO THE SINGLE DIGITS ABOVE ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO BE OUTDOORS. WEAR APPROPRIATE
CLOTHING, A HAT, AND GLOVES.
KEEP PETS INDOORS AS MUCH AS POSSIBLE.
MAKE FREQUENT CHECKS ON OLDER FAMILY, FRIENDS, AND NEIGHBORS. ENSURE
PORTABLE HEATERS ARE USED CORRECTLY. DO NOT USE GENERATORS OR GRILLS
INSIDE.
WYZ014-015-211200-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1700Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
1223 PM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY
* WHAT...VERY COLD WIND CHILL TEMPERATURES WILL DROP TO 25 TO 35
DEGREES BELOW ZERO AFTER SUNSET.
* WHERE...WIND RIVER MOUNTAINS.
* WHEN...UNTIL 10 AM MST TUESDAY. COLDEST WIND CHILL TEMPERATURES
WILL OCCUR SOON AFTER SUNSET THROUGH AROUND 11 PM TONIGHT.
* IMPACTS...THE DANGEROUSLY COLD WIND CHILLS AS LOW AS 35 BELOW ZERO
COULD CAUSE FROSTBITE ON EXPOSED SKIN IN AS LITTLE AS 10 MINUTES.
* ADDITIONAL DETAILS...OUTDOOR RECREATIONISTS SHOULD DRESS IN LAYERS
AND COVER EXPOSED SKIN. DAYTIME HIGHS TODAY WILL CLIMB TO NEAR
ZERO OR UP TO THE SINGLE DIGITS ABOVE ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO BE OUTDOORS. WEAR APPROPRIATE
CLOTHING, A HAT, AND GLOVES.
WYZ025-026-030-211200-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1700Z/
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER GREEN RIVER BASIN-EAST
SWEETWATER COUNTY-
INCLUDING THE CITIES OF BIG PINEY, LA BARGE, FARSON, PINEDALE,
AND WAMSUTTER
1223 PM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY
* WHAT...VERY COLD WIND CHILL TEMPERATURES WILL DROP TO 25 TO 35
DEGREES BELOW ZERO OVERNIGHT.
* WHERE...EAST SWEETWATER COUNTY, UPPER GREEN RIVER BASIN, AND UPPER
GREEN RIVER BASIN FOOTHILLS.
* WHEN...UNTIL 10 AM MST TUESDAY.
* IMPACTS...THE DANGEROUSLY COLD WIND CHILLS AS LOW AS 35 BELOW ZERO
COULD CAUSE FROSTBITE ON EXPOSED SKIN IN AS LITTLE AS 10 MINUTES.
* ADDITIONAL DETAILS...DAYTIME HIGHS TODAY WILL CLIMB TO NEAR ZERO
OR UP TO THE SINGLE DIGITS ABOVE ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO BE OUTDOORS. WEAR APPROPRIATE
CLOTHING, A HAT, AND GLOVES.
KEEP PETS INDOORS AS MUCH AS POSSIBLE.
MAKE FREQUENT CHECKS ON OLDER FAMILY, FRIENDS, AND NEIGHBORS. ENSURE
PORTABLE HEATERS ARE USED CORRECTLY. DO NOT USE GENERATORS OR GRILLS
INSIDE.
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE, VISIT
HTTPS://WEATHER.GOV/RIW/ .
HENSLEY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page