textproduct: Western and Central Wyoming
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Temperatures back near normal today with nearly clear skies.
- Warming temperatures through the rest of the week with highs in the 40s.
- No precip across western and central WY through the rest of the week, with only light snow possible for the western mountains this weekend.
DISCUSSION
Issued at 132 AM MST Mon Dec 29 2025
High pressure will be holding control along the northern Rockies during the next several days, deflecting the storm track back into Canada and keeping mild temperatures going for Wyoming. Lows this morning have been cold, with temps well below zero for the western valleys, and in the single digits above zero east of the Divide. Southwest flow returns today, helping to carve out some of the cold pool that has settled in the region. With the cold pool not overly strong and not reinforced by any snowpack, expect a good recovery of temperatures into the 30s this afternoon. Western valleys that do have snowpack and are starting a lower temperatures will have more trouble getting out of the teens this afternoon. This pattern will continue through the remainder of the week, as the ridge holds in place, pushing systems off to the north and continuing to carve up any remaining cold pool. Most areas will be back in the 40s by Wednesday, with Jackson Hole and Star Valley holding back a bit depending on how fast surface snow thins out.
The ridge tries to shift more east late in the week, opening the door for some moisture to get back into the western mountains, but a lack of significant supporting storm systems will keep any snowfall on the lighter side for the time being.
AVIATION /12Z TAFS THROUGH 12Z TUESDAY/
Issued at 409 AM MST Mon Dec 29 2025
VFR conditions through the period, with occasional high clouds. Otherwise, light winds through the period, with gusty winds 15 to 20 knots at KRKS and 25 to 30 knots at KCPR this afternoon.
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
None.
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