936
WWUS45 KRIW 181901
WSWRIW
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
101 PM MDT SUN MAY 18 2025
WYZ008-009-191415-
/O.CON.KRIW.WW.Y.0025.250519T0600Z-250520T0600Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
101 PM MDT SUN MAY 18 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO MIDNIGHT MDT MONDAY NIGHT...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS OF 5 TO 9 INCHES.
LOCAL AMOUNTS OVER A FOOT POSSIBLE ABOVE 9500 FEET. WINDS GUSTING
AS HIGH AS 40 MPH.
* WHERE...BIGHORN MOUNTAINS SOUTHEAST AND BIGHORN MOUNTAINS WEST.
* WHEN...FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT MONDAY NIGHT.
* IMPACTS...TRAVEL COULD BE DIFFICULT, INCLUDING OVER POWDER RIVER
AND GRANITE PASSES.
* ADDITIONAL DETAILS...THE GREATEST IMPACTS WILL BE FROM LATE SUNDAY
NIGHT THROUGH MONDAY MORNING.
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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