Area Forecast Discussion
Issued by NWS Sioux Falls, SD

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FXUS63 KFSD 250453
AFDFSD

AREA FORECAST DISCUSSION
National Weather Service Sioux Falls SD
1053 PM CST Tue Nov 24 2020

.SHORT TERM...(This Evening through Wednesday)
Issued at 249 PM CST Tue Nov 24 2020

Rain, low clouds and drizzle will slowly shift east as a trough of
low pressure aloft moves through. There is not a huge push behind
this in the low levels so drying might not be as strong as it could
be, but so far ceilings are rising nicely west of I-29 into the
early afternoon.

This northwest flow will gradually become more northerly as low
pressure deepens to the south tonight into Wednesday. Will need to
watch the low cloud trends across parts of MN and IA tonight as flow
may turn and begin to advect some of these low level moisture back
to the southwest. May even see some drizzle redevelop and if
temperatures are low enough some patchy light freezing drizzle would
also be possible.

A ridge of high pressure will move through on Wednesday with
southerly flow setting up in central SD. Highs will again be on the
seasonally cool side, ranging from the upper 30s in southwest MN and
northwest IA to the upper 40s in south central SD. Lots of sun west
of I-29 with clouds gradually diminishing east of I-29.

.LONG TERM...(Wednesday Night through Tuesday)
Issued at 249 PM CST Tue Nov 24 2020

A dry pattern will be in place for the remainder of the forecast
with a few swings in temperatures, but pretty much little to no
precipitation. The warmest day is likely to be on Saturday with a
fairly deep westerly flow. Will likely need to raise highs at some
point in time. Expect temperatures a bit above normal both
Thursday and Friday. Colder air will drop south Sunday with near
to a bit below normal temperatures more likely Sunday into
Tuesday. Without snow cover pretty tough to be below normal this
time of year.

&&

.AVIATION...(For the 06Z TAFS through 06Z Wednesday night)
Issued at 1049 PM CST Tue Nov 24 2020

Low to mid-level cloud cover will persist all night. Recent model
runs show patchy fog overnight as well, with southwest Minnesota
being favored for the more widespread coverage. Dense fog looks
unlikely, given low stratus firmly in place. Fog dissipates around
sunrise. Winds will be light northwesterly overnight, switching
to light southerly during the daytime Wednesday. Clouds also thin
from west to east during the day Wednesday.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...NONE.
MN...NONE.
IA...NONE.
NE...NONE.
&&

$$

SHORT TERM...08
LONG TERM...08
AVIATION...VandenBoogart


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