615
FXUS63 KFSD 021728
AFDFSD

Area Forecast Discussion
National Weather Service Sioux Falls SD
1128 AM CST Tue Dec 2 2025

.KEY MESSAGES...

-  Chances for light precipitation, mostly snow, return late
   this afternoon into Wednesday with a passing cold front.
   Behind the front, wind chills of  -10 to -25F look
   increasingly likely for Wednesday night into early Thursday.

-  Wintry cold, below normal temperatures continue through
   early next week.

-  Details remain uncertain, but additional snow chances
   continue this weekend into early next week.

&&

.DISCUSSION...
Issued at 303 AM CST Tue Dec 2 2025

TODAY: Patchy fog this morning has been occasionally reducing
visibility to below one mile. Fog could lead to isolated slick spots
during the morning commute. Temperatures have fallen into the single
digits to below zero.

We`ll warm up a bit ahead of a cold front moving through the region
later this afternoon through this evening. However, did drop highs a
couple of degrees from the previous forecast as the snowpack should
temper the impact of the WAA. Highs in the 20s and 30s - warmest in
south central SD. As the front moves through, expect some light
precipitation. A mix of precipitation is possible as the front moves
through, mainly at the onset. Once we get slightly deeper saturation
and heavier precipitation, temperatures should drop with wet bulb
temps cooling below zero and switching the p-type to snow. Guidance
this morning is holding on to these slightly warmer temperatures
aloft just a bit longer than yesterday. Any snow accumulations will
be light, less than half an inch, and focused along/north of I-90.
Can`t rule out a light glaze of ice for areas with mixed
precipitation before we transition to snow.

TONIGHT-WEDNESDAY: Initial push of cold air moves in behind the cold
front, and we`ll be a bit breezy because of this and the compressed
SPG tonight into Wednesday. Any snow should taper off through the
overnight hours. Challenge through Wednesday and into Wednesday
night is the non-diurnal temperatures. Temperatures tonight into
Wednesday look to be relatively steady through the day. Breezy winds
will keep wind chills below zero, even during the day Wednesday.

Arctic high pressure slides south Wednesday into early Thursday,
bringing light winds behind another push of CAA. Light winds and
clearing skies help temperatures tank by early Thursday morning.
Lows Wednesday night fall into the teens and single digits below
zero, with wind chills as low as -25 F.

THURSDAY NIGHT ONWARD: Another cold front looks to move through the
area late Thursday night into Friday, which could bring another
chance for light snow. Otherwise, northwesterly flow prevails into
the early part of next week. As mentioned in the previous
discussion, guidance remains quite varied on the details of the
waves passing through, so confidence is low in any snow chances and
potential snow amounts. Below to near average temperatures continue
through the weekend and into early next week with occasional breezy
conditions.

&&

.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...
Issued at 1124 AM CST Tue Dec 2 2025

Light precipitation may move into areas near and north of I-90
and west of I-29 through mid afternoon. Some very light mixed
precipitation will be possible, but the impacts for now are
expected to be minor. Precipitation chances increase late
afternoon into tonight, especially near and north of I-90. While
mainly snow is expected, some mixed precipitation remains
possible. Amounts are expected to remain light. MVFR and
possibly IFR conditions are expected to develop late evening
into Wednesday morning. Northerly winds will increase overnight
with a few gusts around 30 mph possible, with the breezy
conditions continuing into Wednesday morning.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...None.
MN...None.
IA...None.
NE...None.

&&

$$

DISCUSSION...SG
AVIATION...08