Grand Junction, Iowa Weather Forecast Discussion

326
FXUS63 KDMX 282320
AFDDMX
Area Forecast Discussion
National Weather Service Des Moines IA
620 PM CDT Sun Sep 28 2025
...Updated for the 00z Aviation Discussion...
.KEY MESSAGES...
- Warm and dry through the work week
&&
.DISCUSSION...
Issued at 209 PM CDT Sun Sep 28 2025
Tranquil conditions across Iowa today with high pressure
allowing for light wind and clear skies. With dry conditions in
place deep mixing has allowed temperatures to warm into the low
to mid 80s so far this afternoon. The dry air and deep mixing
has resulted in temperatures a few degrees too low the past few
days, so increased Monday maximum temperatures over NBM to
account for this. High pressure will remain in place throughout
the work week with highs in the 80s and lows in the upper 50s to
low 60s. The large blocking pattern is largely unchanged until
the upcoming weekend a when a trough may pass across the area,
bringing the next chance for precipitation. Uncertainty remains
at this time range and is enhanced due to uncertainty in how the
block high will interact with the two tropical systems off the
east coast this week.
&&
.AVIATION /00Z TAFS THROUGH 00Z MONDAY/...
Issued at 620 PM CDT Sun Sep 28 2025
Light winds will persist this evening out of the
east/southeast, though gradually shifting southerly through
Monday. Some mid-level clouds otherwise currently remain over
KDSM and KOTM, but should fade in the next few hours, with more
scattered high clouds passing through Monday from west to east.
&&
.DMX WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
DISCUSSION...Hagenhoff
AVIATION...Bury

NWS DMX Office Area Forecast Discussion