528
WWUS75 KRIW 200819
NPWRIW
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
119 AM MST MON JAN 20 2025
WYZ001-002-210400-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1700Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF OLD FAITHFUL, LAKE, AND MAMMOTH
119 AM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY
* WHAT...LOW TEMPERATURES OF 20 BELOW TO 30 BELOW ZERO WILL COMBINE
WITH A NORTH WIND TO CREATE WIND CHILL READINGS 30 BELOW TO 40
BELOW ZERO MONDAY MORNING. IT WILL BE SLIGHTLY WARMER MONDAY NIGHT.
* WHERE...ABSAROKA MOUNTAINS AND YELLOWSTONE NATIONAL PARK.
* WHEN...UNTIL 10 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 DURING THE DAYLIGHT HOURS
MONDAY WILL CLIMB INTO THE SINGLE DIGITS ABOVE ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO RECREATE OUTSIDE. WEAR
APPROPRIATE CLOTHING, A HAT, AND GLOVES.
WYZ003>007-010-011-016>020-022-210400-
/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 CODY, LOVELL, SHOSHONI, CLARK, BUFFALO,
KAYCEE, MEETEETSE, JEFFREY CITY, RIVERTON, DUBOIS, GREYBULL,
POWELL, CASPER, SHELL, BASIN, LANDER, WORLAND, THERMOPOLIS, AND
TEN SLEEP
119 AM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY
* WHAT...LOW TEMPERATURES OF 10 BELOW TO 20 BELOW ZERO WILL COMBINE
WITH A NORTH WIND TO CREATE WIND CHILL READINGS 25 BELOW TO 35
BELOW ZERO MONDAY MORNING. IT WILL BE SLIGHTLY WARMER MONDAY NIGHT.
* WHERE...GREEN MOUNTAINS AND RATTLESNAKE RANGE, LANDER FOOTHILLS,
NATRONA COUNTY LOWER ELEVATIONS, SOUTHWEST BIGHORN BASIN, WIND
RIVER BASIN, NORTHEAST JOHNSON COUNTY, SOUTHEAST BIGHORN BASIN,
SOUTHEAST JOHNSON COUNTY, CODY FOOTHILLS, AND NORTH BIGHORN BASIN.
* 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 DURING THE DAYLIGHT HOURS
MONDAY WILL CLIMB TO BETWEEN 4 BELOW ZERO AND 6 ABOVE ZERO
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO RECREATE OUTSIDE. 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.
WYZ008-009-210400-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1200Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
119 AM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY
* WHAT...LOW TEMPERATURES OF 15 BELOW TO 25 BELOW ZERO WILL COMBINE
WITH A NORTH WIND TO CREATE WIND CHILL READINGS 30 BELOW TO 40
BELOW ZERO MONDAY MORNING. IT WILL BE SLIGHTLY WARMER MONDAY NIGHT.
* WHERE...BIGHORN MOUNTAINS SOUTHEAST AND BIGHORN MOUNTAINS WEST.
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 DURING THE DAYLIGHT HOURS
MONDAY WILL ONLY RANGE FROM 10 BELOW ZERO TO ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO RECREATE OUTSIDE. WEAR
APPROPRIATE CLOTHING, A HAT, AND GLOVES.
WYZ012-013-210400-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1700Z/
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-
INCLUDING THE CITIES OF JACKSON
119 AM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY
* WHAT...LOW TEMPERATURES OF 15 BELOW TO 25 BELOW ZERO WILL COMBINE
WITH A LIGHT WIND TO CREATE WIND CHILL READINGS 25 BELOW TO 35
BELOW ZERO MONDAY MORNING. IT WILL BE SLIGHTLY WARMER MONDAY NIGHT.
* WHERE...JACKSON HOLE AND TETON AND GROS VENTRE MOUNTAINS.
* 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...OUTDOOR RECREATIONISTS SHOULD DRESS IN LAYERS
AND COVER EXPOSED SKIN. DAYTIME HIGHS DURING THE DAYLIGHT HOURS
MONDAY WILL CLIMB INTO THE SINGLE DIGITS ABOVE ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO RECREATE OUTSIDE. 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.
WYZ014-015-210400-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1700Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
119 AM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY
* WHAT...LOW TEMPERATURES OF 20 BELOW TO 30 BELOW ZERO WILL COMBINE
WITH A NORTH WIND TO CREATE WIND CHILL READINGS 30 BELOW TO 40
BELOW ZERO MONDAY MORNING. IT WILL BE SLIGHTLY WARMER MONDAY NIGHT.
* WHERE...WIND RIVER MOUNTAINS EAST AND WIND RIVER MOUNTAINS WEST.
* WHEN...UNTIL 10 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 DURING THE DAYLIGHT HOURS
MONDAY WILL CLIMB TO BETWEEN 5 BELOW AND 5 ABOVE ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO RECREATE OUTSIDE. WEAR
APPROPRIATE CLOTHING, A HAT, AND GLOVES.
WYZ025-026-030-210400-
/O.CON.KRIW.CW.Y.0001.000000T0000Z-250121T1700Z/
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER GREEN RIVER BASIN-EAST
SWEETWATER COUNTY-
INCLUDING THE CITIES OF WAMSUTTER, PINEDALE, FARSON, BIG PINEY,
AND LA BARGE
119 AM MST MON JAN 20 2025
..COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY
* WHAT...LOW TEMPERATURES OF 15 BELOW TO 25 BELOW ZERO WILL COMBINE
WITH A LIGHT NORTHWEST WIND TO CREATE WIND CHILL READINGS 25 BELOW
TO 35 BELOW ZERO MONDAY MORNING. IT WILL BE SLIGHTLY WARMER MONDAY
NIGHT.
* 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 DURING THE DAYLIGHT HOURS
MONDAY WILL CLIMB INTO THE SINGLE DIGITS ABOVE ZERO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
USE EXTREME CAUTION IF YOU PLAN TO RECREATE OUTSIDE. 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/ .
DZIEWALTOWSKI
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