textproduct: Western and Central Wyoming

KEY MESSAGES

- Snow has tapered off with a few scattered showers pushing across eastern Sweetwater County through Wednesday morning.

- Cold temperatures and freeze warnings in effect through mid Wednesday morning giving way to seasonable temperatures by afternoon and improved conditions.

- Shortwave brings scattered showers for northeastern portions of the viewing area for Thursday and Saturday afternoons/evenings with minimal impacts expected. - Dry and warming trend into the weekend and next week.

DISCUSSION

Issued at 200 AM MDT Wed May 6 2026

IR currently depicts ample cloud cover across the southern half of the CWA with improved conditions further north. The closed upper level low has embedded into the overall L/W trough pattern with a positive oriented tilt across the Dakotas to the Rockies with the PFJ dipping around its base. A few scattered snow showers linger across mainly eastward Sweetwater County extending from South Pass/Sweetwater Station but will slowly diminish as it exits to the southeast by sunrise Wednesday morning. Cold temperatures in the hard freeze warning criteria category for Wednesday morning for lower elevations east of the Divide before recovering to seasonable temperatures by afternoon.

Otherwise, expect upper level ridging to start building in later WEdnesday giving way to northwest flow aloft and ample convergence. Improved sky conditions and relatively light winds through the rest of Wednesday and into Thursday. A subtle shortwave propagates down the ridge that will bring some scattered showers for northeastern portions of the CWA, mainly parts of the Bighorn Basin and Mountains but will minimal if any impacts expected. The pattern continues with northwest flow aloft with the PFJ remaining in far reaches of the northeast part of the state with another shortwave effecting the northeastern CWA again Saturday afternoon/evening. Minimal impacts expected once again but the overall pattern looks to be a mostly dry and warming trend into the weekend and next week. Ridging and northwest flow aloft continue with no significant weather systems of note on the horizon at this point in time.

AVIATION /12Z TAFS THROUGH 12Z THURSDAY/

Issued at 445 AM MDT Wed May 6 2026

VFR conditions at all TAF sites as any precipitation has pushed southeast and east of LND/CPR/RKS out of the CWA. A slight breeze west of the Divide and CPR after 21-22Z with daytime heating and mixing to the surface, diminishing after 01-02Z with radiational cooling towards sunset. Otherwise, mainly clear skies will turn to increasing high clouds after 08-09Z Thursday morning ahead of the next shortwave to the northeast. Dry conditions expected and any precipitation with this next system Thursday will remain northeast and north of COD/WRL/CPR not expecting to be on station for any TAF location.

Please see the Aviation Weather Center and/or CWSU ZDV and ZLC for the latest information on icing and turbulence forecasts.

RIW WATCHES/WARNINGS/ADVISORIES

Freeze Warning until 9 AM MDT this morning for WYZ003>006-010- 011-017-018-020.

Winter Weather Advisory until 7 AM MDT this morning for WYZ019- 030.