628
WWUS45 KRIW 032155
WSWRIW
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
355 PM MDT FRI APR 3 2026
WYZ004-006-032300-
/O.EXP.KRIW.WW.Y.0014.000000T0000Z-260403T2200Z/
NORTH BIGHORN BASIN-SOUTHEAST BIGHORN BASIN-
INCLUDING THE CITIES OF GREYBULL, LOVELL, TEN SLEEP, BASIN,
POWELL, WORLAND, AND SHELL
355 PM MDT FRI APR 3 2026
..WINTER WEATHER ADVISORY WILL EXPIRE AT 4 PM MDT THIS AFTERNOON
SNOW HAS TAPERED OFF ACROSS THE AREA, AND ADDITIONAL ACCUMULATIONS
ARE NOT EXPECTED. THE WINTER WEATHER ADVISORY WILL BE ALLOWED TO
EXPIRE AT 4PM MDT.
WYZ008-009-040000-
/O.CON.KRIW.WS.W.0003.000000T0000Z-260404T0000Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
355 PM MDT FRI APR 3 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...ADDITIONAL SNOW ACCUMULATIONS UP TO 3 INCHES FOR HIGHER
TERRAIN ACROSS THE SOUTHERN AND NORTHERN BIGHORNS. ADDITIONAL
ACCUMULATIONS OF 1 TO 2 INCHES ALONG POWDER RIVER PASS. WINDS
GUSTING AS HIGH AS 55 MPH.
* WHERE...BIGHORN MOUNTAINS SOUTHEAST AND BIGHORN MOUNTAINS WEST.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT, INCLUDING OVER GRANITE
PASS AND POWDER RIVER PASS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.
FOR GRAPHICAL DEPICTIONS OF THE SNOWFALL FORECAST, INCLUDING THE
OFFICIAL NWS FORECAST, HIGH END AMOUNTS, AND LOW END AMOUNTS, VISIT
HTTPS://WEATHER.GOV/RIW/WINTER .
FOR WINTER ROAD CONDITIONS FROM THE WYOMING DEPARTMENT OF
TRANSPORTATION, VISIT HTTPS://WYOROAD.INFO .
WYZ010-040000-
/O.CON.KRIW.WS.W.0003.000000T0000Z-260404T0000Z/
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITIES OF BUFFALO
355 PM MDT FRI APR 3 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...ADDITIONAL SNOW ACCUMULATIONS UP TO 1 INCH WITH WINDS
GUSTING AS HIGH AS 45 MPH. THE HEAVIEST SNOW IS EXPECTED NORTH OF
BUFFALO.
* WHERE...NORTHEAST JOHNSON COUNTY.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS, INCLUDING ALONG THE INTERSTATE
90 CORRIDOR. TRAVEL WILL BE DIFFICULT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY.
FOR GRAPHICAL DEPICTIONS OF THE SNOWFALL FORECAST, INCLUDING THE
OFFICIAL NWS FORECAST, HIGH END AMOUNTS, AND LOW END AMOUNTS, VISIT
HTTPS://WEATHER.GOV/RIW/WINTER .
FOR WINTER ROAD CONDITIONS FROM THE WYOMING DEPARTMENT OF
TRANSPORTATION, VISIT HTTPS://WYOROAD.INFO .
WYZ011-020-022-040000-
/O.CON.KRIW.WW.Y.0014.000000T0000Z-260404T0000Z/
SOUTHEAST JOHNSON COUNTY-NATRONA COUNTY LOWER ELEVATIONS-CASPER
MOUNTAIN-
INCLUDING THE CITIES OF CASPER AND KAYCEE
355 PM MDT FRI APR 3 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...SNOW. ADDITIONAL SNOW ACCUMULATIONS UP TO 2 INCHES IS
POSSIBLE. WINDS GUSTING AS HIGH AS 45 MPH.
* WHERE...CASPER MOUNTAIN, NATRONA COUNTY LOWER ELEVATIONS, AND
SOUTHEAST JOHNSON COUNTY.
* WHEN...UNTIL 6 PM MDT THIS EVENING.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
REMAIN SLICK AND HAZARDOUS. PLAN ON SLIPPERY ROAD CONDITIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING.
FOR GRAPHICAL DEPICTIONS OF THE SNOWFALL FORECAST, INCLUDING THE
OFFICIAL NWS FORECAST, HIGH END AMOUNTS, AND LOW END AMOUNTS, VISIT
HTTPS://WEATHER.GOV/RIW/WINTER .
FOR WINTER ROAD CONDITIONS FROM THE WYOMING DEPARTMENT OF
TRANSPORTATION, VISIT HTTPS://WYOROAD.INFO .
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE, VISIT
HTTPS://WEATHER.GOV/RIW/ .
GERHARDT
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