KRIW issues SPS valid 2019-12-10T20:46:00Z    

336

WWUS85 KRIW 102046

SPSRIW



Special Weather Statement

National Weather Service Riverton WY

146 PM MST Tue Dec 10 2019



WYZ013-023-111400-

Jackson Hole-Star Valley-

Including the cities of Jackson, Afton, Alpine, 

Star Valley Ranch, and Thayne

146 PM MST Tue Dec 10 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 up to 10 inches.



* WIND...South 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 and the Star Valley. The heaviest snow is

  expected to fall in Grand Teton National Park across the north 

  half of Jackson Hole and in the mountain foothills on the 

  eastern side of the Star Valley.



* 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.



$$