785
WWUS45 KRIW 142127
WSWRIW
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
327 PM MDT SAT MAR 14 2026
WYZ001-150500-
/O.CON.KRIW.WW.Y.0013.000000T0000Z-260315T0500Z/
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, OLD FAITHFUL, AND MAMMOTH
327 PM MDT SAT MAR 14 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MDT THIS
EVENING...
* WHAT...SNOW AND BLOWING SNOW. TOTAL ACCUMULATIONS OF AN INCH OR
TWO AT MAMMOTH AND THE LAMAR VALLEY, 4 TO 8 INCHES THROUGHOUT THE
PARK, AND 10 TO 15 INCHES OVER THE PITCHSTONE PLATEAU AND HIGH
PEAKS. WINDS GUSTING 35 TO 50 MPH.
* WHERE...YELLOWSTONE NATIONAL PARK.
* WHEN...UNTIL 11 PM MDT THIS EVENING.
* IMPACTS...EXPECT WINTRY TRAVEL AND HAZARDOUS BACKCOUNTRY
CONDITIONS.
WYZ002-012-150500-
/O.CON.KRIW.WW.Y.0013.000000T0000Z-260315T0500Z/
ABSAROKA MOUNTAINS-TETON AND GROS VENTRE MOUNTAINS-
327 PM MDT SAT MAR 14 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MDT THIS
EVENING...
* WHAT...SNOW AND BLOWING SNOW. TOTAL ACCUMULATIONS OF 2 TO 4 INCHES
OVER CHIEF JOSEPH PASS, BETWEEN 4 AND 8 INCHES OVER TETON AND
TOGWOTEE PASSES, AND 10 TO 15 INCHES OVER THE HIGHEST PEAKS. WINDS
GUSTING 45 TO 60 MPH.
* WHERE...ABSAROKA MOUNTAINS AND TETON AND GROS VENTRE MOUNTAINS.
* WHEN...UNTIL 11 PM MDT THIS EVENING.
* IMPACTS...EXPECT WINTRY TRAVEL CONDITIONS OVER MOUNTAIN PASSES,
INCLUDING TETON, TOGWOTEE, AND CHIEF JOSEPH PASS.
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 .
WYZ008-009-150500-
/O.CON.KRIW.WW.Y.0013.000000T0000Z-260315T0500Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
327 PM MDT SAT MAR 14 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MDT THIS
EVENING...
* WHAT...SNOW AND BLOWING SNOW. TOTAL ACCUMULATIONS OF 5 TO 10
INCHES OVER POWDER RIVER AND GRANITE PASSES, AND UP TO 12 INCHES
OVER THE HIGHEST TERRAIN. WINDS GUSTING 45 TO 60 MPH.
* WHERE...BIGHORN MOUNTAINS SOUTHEAST AND BIGHORN MOUNTAINS WEST.
* WHEN...UNTIL 11 PM MDT THIS EVENING.
* IMPACTS...EXPECT WINTRY TRAVEL CONDITIONS OVER MOUNTAIN PASSES,
INCLUDING GRANITE AND POWDER RIVER PASS.
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/ .
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