Winter Storm Expected to Impact Western Wyoming over Thanksgiving Weekend

Winter Storm Expected to Impact Western Wyoming over Thanksgiving Weekend

National Weather Service Riverton WY
242 AM MST Wed Nov 21 2018

...A Major Winter Storm to impact western Wyoming for the holiday
weekend...

.A strong winter storm will impact western portions of Wyoming
Friday and Saturday. This storm is expected to produce
significant snowfall, especially Friday night.


Jackson Hole-Star Valley-
Including the cities of Jackson, Afton, Alpine,
Star Valley Ranch, and Thayne
242 AM MST Wed Nov 21 2018

...WINTER STORM WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
SATURDAY MORNING...

* WHAT...Heavy snow possible. Total snow accumulations of 8 to 12
  inches possible.

* WHERE...Jackson Hole and Star Valley.

* WHEN...From early Friday morning through Saturday morning.

* ADDITIONAL DETAILS...Travel could be very difficult to
  impossible. The hazardous conditions could impact the morning
  and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

Following are the official NWS probabilities  of snowfall accumulations through Saturday morning.

Probability of 2 inches or greater snowfall accumulation Thursday morning to Saturday morning Nov 22-24 2018

 

Probability of 8 inches or greater snowfall accumulation Thursday morning to Saturday morning Nov 22-24 2018

 

Probability of 18 inches or greater snowfall accumulation Thursday morning to Saturday morning Nov 22-24 2018

Much of region will experience snowfall beginning Thanksgiving Day and continuing into Saturday.  The heaviest from 1-2 feet is most likely in the western Wyoming mountains.

The above forecasts are heavily based on the computer models snow forecast accumulations for the same time period.

Model snowfall accumulation forecast Thursday morning to Saturday morning Nov 22-24 2018

 

 

 

 

 



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