URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
843 AM MST Sun Feb 19 2023

WYZ023-200000-
/O.NEW.KRIW.WS.W.0004.230220T0000Z-230222T1200Z/
Star Valley-
Including the cities of Afton, Alpine, Star Valley Ranch,
and Thayne
843 AM MST Sun Feb 19 2023

...WINTER STORM WARNING IN EFFECT FROM 5 PM SUNDAY TO 5 AM MST
WEDNESDAY...

* WHAT...Snow, heavy at times. Total snow accumulations of 10 to
  16 inches over northern Star Valley and 6 to 10 inches over
  southern Star Valley. Winds frequently gusting 15 to 30 mph.

* WHERE...Star Valley.

* WHEN...From 5 PM Sunday to 5 AM MST Wednesday.

* IMPACTS...Travel could be very difficult to impossible,
  especially Monday night and Tuesday, with impacts to commuter
  traffic. Widespread snow and blowing snow could significantly
  reduce visibility.

* ADDITIONAL DETAILS...Snowfall amounts of 1 to 3 inches are
  forecast Sunday night and Monday. Much heavier snow, and the
  bulk of the snow accumulation, along with stronger wind arrives
  Monday night and continues into Tuesday evening before gradually
  diminishing.

Following are 300mb forecast charts during the coming storm episode.

                                     Sunday Morning 


                                  Tuesday Morning

                                   Wednesday Morning

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel will be significantly impacted by the snow and blowing
snow, most especially Monday night and Tuesday. If you must
travel, keep an extra flashlight, food, and water in your vehicle
in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.