075
FXUS63 KUNR 182312
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
512 PM MDT Sat Oct 18 2025

.KEY MESSAGES...

- Breezy conditions this afternoon

- Sunny and trending warmer on Sunday

- Windy on Monday, with low end precipitation chances.

- Staying dry and trending warmer Tuesday-next Saturday.

&&

.DISCUSSION...(This Evening Through Saturday)
Issued at 1253 PM MDT Sat Oct 18 2025

In the wake of this morning clipper system, regional road cameras
around the Black Hills showed some very light snow accumulations
in the grassy surfaces. That system as quickly moved to the east
and in its wake, subsidence and rising heights have spread into
the region allowing for skies to clear and precipitation to come
to and end. The winds will continue to stay breezy this afternoon
before diminishing this evening as a weak ridge builds into the
region.

This weak ridge will settle across the region tomorrow and bring
mostly clear skies, warmer temperatures, and an end to the breezy
conditions. This ridge will be short lived, as a strong wave dives
out of western Canada and pushes into the region late Sunday night
into Monday. This system will bring some low end (<30%) PoP
chances across the Black Hills and points east, but the main
hazard will be for some strong winds to develop, especially across
the northwestern corner of SD. This is are is where we are seeing
the highest probabilities for wind gusts hitting or exceeding 50
mph. Across the rest of the region wind gusts could be in the 40
to 45 mph range. At this time no wind highlights will be issued in
this forecast update but if trends continue a High Wind Watch or a
Wind Advisory may be issued in the next forecast update.

For Tuesday into next weekend, much of the Intermountain West and
Front Range will be under the influence of a broad area of high
pressure. This will translate to a prolonged period of dry
conditions, light winds and gradually warming temperatures.
Temperatures are progged to be in the mid 60s for much of the week
and could reach the 70s by Friday.

&&

.AVIATION...(For the 00Z TAFS Through 00Z Sunday Evening)
Issued At 511 PM MDT Sat Oct 18 2025

VFR conditions are expected through the valid forecast period.
Gusty northwest winds will subside shortly after 19/01z becoming
southerly by morning.


&&

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

$$

DISCUSSION/KEY MESSAGES...Woodward
AVIATION...Hintz