299
FXUS63 KUNR 112321
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
421 PM MST Tue Nov 11 2025

.KEY MESSAGES...

- Warm and dry through this week with highs 10-15F warmer than
  average

- Next chance for precip comes Friday into Saturday

&&

.DISCUSSION...(This Afternoon Through Monday)
Issued at 1153 AM MST Tue Nov 11 2025

A large and broad ridge continues to sit across all of the
Intermountain West with eastern Wyoming and western South Dakota
sitting on its eastern periphery. Tightening gradients have
allowed breezy northwest flow to develop across the area this
afternoon. This downsloping component has the area mostly devoid
of cloud cover. The clouds should remain mostly clear this
evening which will lead to go northern lights viewing. Overall the
rest of the week looks on track when comparing the models and
ensemble analysis from previous runs. The aforementioned ridge
axis will slowly shift east throughout the week in response to an
incoming larger and deeper trough in the Pacific northwest.
Eventually this trough axis will move into our region by the end
of the week and into next weekend with colder temperatures and
chances for some high elevation light snow showers and valley rain
showers.

&&

.AVIATION...(For the 00Z TAFS Through 00Z Wednesday Evening)
Issued At 419 PM MST Tue Nov 11 2025

VFR conditions will persist through the forecast period. West to
northwest winds under 20 knots this evening back to southeast to
southwesterly Wednesday after 15Z.

&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...None.
WY...None.
&&

$$

DISCUSSION/KEY MESSAGES...Woodward
AVIATION...NL