Snow accumulation on the Wind River Range as of this morning. h/t See Lander Wyoming Webcam
National Weather Service has issued a Freeze Watch for the following:
URGENT - WEATHER MESSAGE National Weather Service Riverton WY 422 AM MDT Thu Sep 12 2019 ...A hard freeze is possible late tonight and Friday morning in the valleys and basins of far western Wyoming... WYZ013-023-025>027-122200- /O.NEW.KRIW.FZ.A.0001.190913T0900Z-190913T1400Z/ Jackson Hole-Star Valley-Upper Green River Basin Foothills- Upper Green River Basin-South Lincoln County- Including the cities of Jackson, Afton, Alpine, Star Valley Ranch, Thayne, Pinedale, La Barge, Big Piney, Farson, Kemmerer, and Cokeville 422 AM MDT Thu Sep 12 2019 ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING... The National Weather Service in Riverton has issued a Freeze Watch, which is in effect from late tonight through Friday morning. * TEMPERATURE...26 to 32 * IMPACTS...Sensitive plants and vegetables could freeze if exposed to these subfreezing temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Watch means sub-freezing temperatures are possible. These conditions could kill crops and other sensitive vegetation. Bring indoors any sensitive vegetables or cover them to avoid freezing.