KRIW issues SPS valid 2019-12-11T10:00:00Z    

404

WWUS85 KRIW 111000

SPSRIW



Special Weather Statement

National Weather Service Riverton WY

300 AM MST Wed Dec 11 2019



WYZ013-023-025-120000-

Jackson Hole-Star Valley-Upper Green River Basin Foothills-

Including the cities of Jackson, Afton, Alpine, 

Star Valley Ranch, Thayne, and Pinedale

300 AM MST Wed Dec 11 2019



...Accumulating Valley Snow Expected Thursday and Friday...



A steady stream of Pacific moisture will feed into western

Wyoming Thursday and Friday. Snow and an increasing southerly wind

are expected to impact the western valleys both days...



* SNOW...Moderate to heavy snow. Total accumulations of 4 to 8 

  inches with local amounts of 10 to 12 inches.



* WIND...South to southwest wind of 10 to 15 mph will increase 

  Thursday night with speeds 15 to 30 mph. This could cause 

  blowing and drifting snow, particularly in open areas of Jackson

  Hole.



* WHERE...Jackson Hole, the Star Valley, and around Bondurant. The

  heaviest snow is expected to fall in Grand Teton National Park

  across the north half of Jackson Hole, in the mountain foothills

  on the eastern side of the Star Valley, and from Hoback Canyon

  into Bondurant.



* WHEN...Thursday through Friday.



* ADDITIONAL DETAILS...Temperatures may hover at or just above

  freezing for much of the day Thursday, which may hinder snow

  accumulation on the valley floor. There is still uncertainty as

  to how much snow could fall Thursday, but the potential for

  heavy snow certainly exists through Thursday evening. Snowfall 

  will decrease in intensity through the day Friday.



$$



McDonald