Casper, Wyoming Weather Forecast Discussion

368
FXUS65 KRIW 060840
AFDRIW
Area Forecast Discussion
National Weather Service Riverton WY
240 AM MDT Mon Oct 6 2025
.KEY MESSAGES...
- Decreasing clouds today with still chilly temperatures.
- Clear skies overnight tonight will bring most areas near or
  below freezing, with more Warnings expected.
- Moderating conditions through the rest of the week, with
  temperatures back to near or above normal by Wednesday.
&&
.DISCUSSION...
Issued at 212 AM MDT Mon Oct 6 2025
The remaining trough axis continues to drift southward today,
but will still be producing some light precip across central WY
through around noon today. As the trough axis moves south, it
will allow northerly flow aloft to begin to carve out the low
clouds across the state. Most areas should be nearly clear by
late this afternoon. With the core of the coldest temps with
this system still in the vicinity, temperatures will struggle
to reach back into the 50s this afternoon. With clear skies
tonight, another round of freezing temperatures is expected
across all of western and central WY.
Behind this trough, a large ridge builds across the
Intermountain West, paired against a large cutoff low settling
just off the PacNW Coast. This should keep the weather more
tranquil for the latter half of the week, allowing temps to
recover back to near to just above normal in the 60s to near 70.
&&
.AVIATION /06Z TAFS THROUGH 06Z TUESDAY/...
Issued at 1030 PM MDT Sun Oct 5 2025
VFR conditions west of the Divide as conditions have improved in
wake of the rain/snow pushing east and northeast. MVFR
conditions east of the Divide that will start to see
improvement after 15-16Z. Winds will remain relatively light
less than 10kts for the entirety of the period for all TAF
sites. Mid level ceilings after this point lifting to the upper
levels after 00Z towards sunset. These improved conditions west
of the Divide after 18Z with clear skies likely by the 00Z
timeframe. Otherwise, high pressure and dry conditions
thereafter for the next several days.
Please see the Aviation Weather Center and/or CWSU ZDV and ZLC for
the latest information on smoke, icing, and turbulence
forecasts.
&&
.RIW WATCHES/WARNINGS/ADVISORIES...
Freeze Warning until 10 AM MDT this morning for WYZ003-016-019-
028>030.
Freeze Watch from late tonight through Tuesday morning for
WYZ003>006-010-011-017>020-028>030.
&&
$$
DISCUSSION...Straub
AVIATION...Lowe

NWS RIW Office Area Forecast Discussion