752
FXUS63 KDMX 292337
AFDDMX

Area Forecast Discussion
National Weather Service Des Moines IA
537 PM CST Mon Dec 29 2025

 ...Updated for the 00z Aviation Discussion...

.KEY MESSAGES...

- Breezy winds and cold temperatures this afternoon and evening.
  Winds diminishing overnight, but still cold on Tuesday
  morning.

- Seasonal temperatures in the 30s on Tuesday with a few
  flurries possible in northeast Iowa through mid-day.

- Dusting of snow possible over north central into northeastern
  Iowa on Wednesday. Cold temperatures falling into the single
  digits Wednesday night into New Year`s Day morning.

&&

.DISCUSSION...
Issued at 157 PM CST Mon Dec 29 2025

Gusty winds from this morning continue to subside early this
afternoon, albeit still breezy with gusts up to 35 mph. With
diminishing winds, visibility reductions from blowing snow have also
diminished. Surface observations now show all of the area with
visibilities of 3 statute miles or greater. Road and plow cameras do
still show snow crawlers drifting over roadways, at least in rural
areas, but actual lofted/blowing snow has become far less prevalent.
Very light falling snow continues to be reported, but visibility
impacts are transient. With impacts diminishing today, the Winter
Weather Advisory was allowed to expire at noon.

Winds will remain breezy through the afternoon but continue on their
downward trend through the evening, becoming light by tomorrow.
Temperatures are quite cold today with values only in the low to mid
teens as of 1 PM and wind chills in the single digits below zero.
Cold temperatures will persist through tonight, but wind chill
values should either improve or remain steady as winds diminish
overnight. Many will wake up to wind chills in the single digits
Tuesday morning, but fortunately this will be more a product of the
cold temperatures rather than the wind. Temperatures then begin to
return to more normal values on Tuesday and Wednesday as surface
flow flips to more westerly and southwesterly through the day. This
will come in response to the first of multiple shortwaves that will
pass to the north and east of the area through the week.

The mid-level wave responsible for our blizzard conditions yesterday
will eventually merge into a large, psuedo-stationary trough parked
over the northeastern CONUS through much of this week. Lobes of
energy will propagate around this trough through the week, resulting
in multiple clipper systems passing north and east of the area. The
first of these will be tomorrow, resulting a few flurries of snow in
far northern and northeastern Iowa. Another wave will then pass
through on Wednesday, bringing a dusting of snow slightly farther
south and west, but still generally over northwestern Iowa. This
second system is the best chance for more accumulating snow this
week, although amounts appear to be generally less than inch. Winds
will generally be light to occasionally breezy with both of these
waves, which should help to mitigate any additional blowing snow
impacts. However, a brief dusting of snow could still make roads
slick in north central into northeastern Iowa on New Years Eve.

The Wednesday wave will be trailed by a cooler airmass, dropping
lows into the single digits the night of New Years Eve (Wednesday)
and into New Years Morning (Thursday) followed by highs in the 20s
to kick off the New Year. Conditions then generally remain dry
Thursday and beyond, with one more wave passing through the area
Sunday night into Monday.

&&

.AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/...
Issued at 531 PM CST Mon Dec 29 2025

Winds abating this evening and lingering mvfr ceilings expected
to clear in the next couple of hours as snow showers dissipate.
Otherwise VFR conditions expected through the TAF period.
Surface winds will relax and gradually shift from NW to SW by
morning.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

DISCUSSION...Dodson
AVIATION...DMD