Oskaloosa, Iowa Weather Forecast Discussion

776
FXUS63 KDMX 081134
AFDDMX
Area Forecast Discussion
National Weather Service Des Moines IA
634 AM CDT Mon Sep 8 2025
...Updated for the 12z Aviation Discussion...
.KEY MESSAGES...
- Scattered showers and thunderstorms return to the area
  tonight through Tuesday.
- Notably warmer weather will build in later this week, with
  daily high temperatures well into the 80s from Wednesday
  onward and nearing 90 by Friday. Rain chances will return
  again next weekend.
&&
.UPDATE...
Issued at 233 AM CDT Mon Sep 8 2025
A plume of mid-level moisture is bringing cloud cover to parts of
northern to east central Iowa early this morning. This is expected
to remain in place through the early morning, slowly shifting to the
east and diminishing after sunrise. Model soundings remain quite dry
across much of the area and deep daytime mixing is anticipated.
Temperatures will warm to the upper 70s across the area, and with
the deep mixing and increasing pressure gradient, wind out of the
south-southwest will become breezy with gusts of 25-35 mph this
afternoon. That tightening pressure gradient is the first influence
of the developing shortwave approaching the area later today. For
much of today precipitation will remain to the west of the area as
dry air prevents further development across Iowa. Uncertainty
remains as to how quickly sufficient moisture will reach the area
for shower development, with the HRRR delayed (06-12z) compared to
NAMnest/FV3 and even RAP (00-06z). After showers develop,
progression across the area is similar across CAMs with
scattered shower activity slowly moving east through Tuesday.
The axis of better instability remains east of the area with
MLCAPE 

NWS DMX Office Area Forecast Discussion