Area Forecast Discussion
Issued by NWS Sioux Falls, SD

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000
FXUS63 KFSD 261134
AFDFSD

Area Forecast Discussion
National Weather Service Sioux Falls SD
634 AM CDT Tue Mar 26 2024

.KEY MESSAGES...

- Light snow will gradually diminish from west to east by late
  morning, with patchy blowing snow and reduced visibility still
  possible through the afternoon as breezy northwesterly winds
  continue. Extended portions of the Winter Weather Advisory
  (mainly along and southeast of a line extending from Ivanhoe-
  Sioux Falls-Yankton) until 10 AM.

- Quiet conditions prevail Wednesday and Thursday, with
  temperatures forecast to slowly moderate back toward seasonal
  norms.

- Precipitation chances return heading into the weekend, though
  confidence in track and amount still remain low at this time.

&&

.DISCUSSION...
Issued at 308 AM CDT Tue Mar 26 2024

Light snow continues across the region, mainly along and east
of the James River Valley. Northwest winds also remain quite
breezy, with gusts ranging between 35 to 45 MPH, resulting in
blowing snow across portions of our area. Will continue to see
snow gradually diminish from west to east in the coming hours,
with light snow still possible east of I-29 through late
morning. Additional snowfall accumulations after 7 AM should
remain less than half an inch. In regard to headlines, plan to
extend the Winter Weather Advisory across SW Minnesota, NW Iowa,
NE Nebraska, and portions of extreme SE South Dakota until 10
AM to account for slick roads and reduced visibilities. As noted
in days past, remember to proceed with caution if you must
commute! Otherwise, look for highs to rise into the 20s today
and lows to fall into the teens to single digits. Despite there
being calmer winds in place overnight, will still see wind chill
values plummet into the single digits to negative teens!

Quiet conditions return Wednesday as the upper level trough pushes
eastward toward the Great Lakes region. Sfc high pressure will slide
overhead during this time, allowing mostly sunny skies and light
winds to prevail through the afternoon. As alluded to in the
previous discussion, will likely see highs rise into the mid 20s to
lower 30s in areas that received a decent amount of snow, with mid
30s to low 40s possible in areas elsewhere. Highs warm even more
heading into the Thursday as upper level ridging builds across the
central CONUS, with temperatures ranging from the mid 30s to mid 50s.

Otherwise, expect upper level flow to turn more zonal heading into
the weekend. Will then see a few shortwaves take aim at the region,
causing precipitation chances to return to the forecast Friday and
Sunday. With temperatures in the 40s to 50s, would expect rain to be
the dominant p-type, but can`t rule out the possibility of seeing
some snow mix in during the evening hours as temperatures cool.
Attention then turns to a pronounced upper level trough and low
pressure over the western CONUS heading into the new week. That
being said, still have a decent amount of model disagreement
concerning the track of this system to place too much confidence
behind any one solution just yet. For now, would expected continued
chances for precipitation, with temperatures near seasonal
norms.

&&

.AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/...
Issued at 634 AM CDT Tue Mar 26 2024

IFR/MVFR conditions continue across the region as snow gradually
diminishes from west to east. Should see dry conditions return late
this morning/early afternoon allowing cigs and vsbys to improve.
That being said, will still see gusty northwesterly winds prevail
through the afternoon, with gusts between 30 to 40 MPH possible.
Otherwise, look for winds to quickly subside near sunset and remain
light for the remainder of the period.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...Winter Weather Advisory until 10 AM CDT this morning for
     SDZ062-066-067-069>071.
     Winter Weather Advisory until 7 AM CDT this morning for
     SDZ038>040-050-052>061-063>065-068.
MN...Winter Weather Advisory until 10 AM CDT this morning for
     MNZ071-072-080-081-089-090-097-098.
IA...Winter Weather Advisory until 10 AM CDT this morning for
     IAZ001>003-012>014-020>022-031-032.
NE...Winter Weather Advisory until 10 AM CDT this morning for
     NEZ013-014.

&&

$$

DISCUSSION...SST
AVIATION...SST


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