Gumbo, South Dakota Weather Forecast Discussion

100
FXUS63 KUNR 232033
AFDUNR
Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
233 PM MDT Tue Sep 23 2025
.KEY MESSAGES...
- Dry conditions and above average temperatures through the rest
  of the week
&&
.DISCUSSION...(This Evening Through Tuesday)
Issued at 231 PM MDT Tue Sep 23 2025
Upper air analysis shows the departing compact upper low swinging
across the central Plains south of the CWA while strong ridging
continues to build across the northern Plains. At the surface...high
pressure just west of the CWA will push across the area tonight,
which will allow winds to quickly subside around sunset. Aside from
an isolated shower this afternoon near the Custer/Fall River border,
dry weather will continue through tonight and into the foreseeable
future as little change to the overall pattern is expected through
at least Thursday. Light smoke may result in a slight haze, but
right now not enough to add to the forecast. Warmer temperatures
will advect in through the rest of the work week, bringing above
average temps each day. Highs are expected to reach the mid to upper
80s across the western SD plains on Thursday and Friday. The upper
ridge will flatten out as a system crosses central Canada. A cold
front is progged to cross the CWA later Friday, which would bring
slightly cooler (but still above average) temps on Saturday. Warm
and dry weather will continue into next week, with no significant
chances of precipitation on the horizon.
&&
.AVIATION...(For the 18Z TAFS Through 18Z Wednesday)
Issued At 1110 AM MDT Tue Sep 23 2025
VFR conditions are expected through the forecast period.
&&
.UNR WATCHES/WARNINGS/ADVISORIES...
SD...None.
WY...None.
&&
$$
DISCUSSION/KEY MESSAGES...13
AVIATION...13

NWS UNR Office Area Forecast Discussion