633
FXUS63 KUNR 070447
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
1047 PM MDT Sat Sep 6 2025

.KEY MESSAGES...

- Dry conditions with a warming trend for more much of next week.

- Increasing chances for precipitation towards next weekend.

&&

.DISCUSSION...(This Evening Through Saturday)
Issued at 146 PM MDT Sat Sep 6 2025

Current Water Vapor and upper air models show northwest flow over
the FA, with upper ridge situated over the Rockies. Surface
analysis depicts high pressure over the Dakotas. Winds are
relatively light and variable across the region this afternoon,
with clear skies and temperatures in the upper 60s and 70s. Cool
conditions continue tonight, with lows expected in the upper 30s
to mid 40s.

Upper ridge slides eastward over the northern and central planes
the remainder of the weekend. This will result in a warming trend
through monday, with highs climbing back into widespread 80s by
Monday. Daytime mixing will result in breezy southeast winds Sunday
afternoon, however gusts will only be in the 20 to 30 mph range. Expect
mostly sunny to partly cloudy skies through middle of next week
with dry conditions as ridge dominates the area. Temperatures
turn more seasonal and chances for precipitation increase towards
the end of next week, as upper low digs into the western CONUS,
pushing the upper ridge east of the forecast area.

&&

.AVIATION...(For the 06Z TAFS Through 06Z Sunday Night)
Issued At 944 PM MDT Sat Sep 6 2025

VFR conditions are expected for the next 24 hours. KGCC could see
a few hours of gusty winds around 20 kts tonight, with gusts
weakening by early Sunday morning.

&&

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

$$

DISCUSSION/KEY MESSAGES...Dye
AVIATION...Pettett