085
WWUS45 KRIW 271039
WSWRIW
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
339 AM MST SAT DEC 27 2025
WYZ001-280000-
/O.CON.KRIW.WW.Y.0040.000000T0000Z-251228T0000Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF OLD FAITHFUL, MAMMOTH, AND LAKE
339 AM MST SAT DEC 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...SNOW. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 2 AND 6 INCHES,
WITH THE HIGHEST AMOUNTS IN SOUTHWESTERN YELLOWSTONE PARK. WINDS
GUSTING AS HIGH AS 40 MPH.
* WHERE...YELLOWSTONE NATIONAL PARK.
* WHEN...UNTIL 5 PM MST THIS AFTERNOON.
* IMPACTS...TRAVEL WILL BE DIFFICULT IN THE BACKCOUNTRY.
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 .
WYZ002-012-014-024-280000-
/O.CON.KRIW.WW.Y.0040.000000T0000Z-251228T0000Z/
ABSAROKA MOUNTAINS-TETON AND GROS VENTRE MOUNTAINS-WIND RIVER
MOUNTAINS WEST-SALT RIVER AND WYOMING RANGES-
339 AM MST SAT DEC 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...SNOW. ADDITIONAL SNOW ACCUMULATIONS OF 3 TO 6 INCHES, WITH
LOCALLY HIGHER AMOUNTS ON THE HIGHER PEAKS OF THE TETONS AND WIND
RIVER RANGE. WINDS GUSTING AS HIGH AS 50 MPH.
* WHERE...WIND RIVER MOUNTAINS WEST, ABSAROKA MOUNTAINS, TETON AND
GROS VENTRE MOUNTAINS, AND SALT RIVER AND WYOMING RANGES.
* WHEN...UNTIL 5 PM MST THIS AFTERNOON.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT, ESPECIALLY ACROSS
MOUNTAIN PASSES.
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/ .
HATTINGS
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