Area Forecast Discussion
Issued by NWS Sioux Falls, SD

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533
FXUS63 KFSD 302239
AFDFSD

AREA FORECAST DISCUSSION
National Weather Service Sioux Falls SD
439 PM CST Mon Nov 30 2020

.SHORT TERM...(This Evening through Tuesday Night)
Issued at 251 PM CST Mon Nov 30 2020

Quiet weather continues as upper level ridging aloft dominates the
air column over the region. As the ridge weakens, an inverted trough
begins to slide towards the region which will turn our surface winds
south/southeasterly during the overnight hours. As the cooler
airmass remains in place, radiational cooling will allow
temperatures to drop down into the teens, which is our
climatologically normal for this time of the year.

After sunrise, the south/southeasterly winds will sneak in some
slightly warmer air, with temperatures expected to top out in the
lower 40s. As the upper level jet dives southwards over the central
rockies, the upper level low will wobble its way southwards which
will send multiple vorticity lobes across the area. While this will
largely only result in increased cloud coverage for most, the low
amounts of moisture in the air does give way to a small chance that
this could result in a few flurries near Brule/Gregory/Charles Mix
county.

.LONG TERM...(Wednesday through Monday)
Issued at 251 PM CST Mon Nov 30 2020

Chances for flurries will decrease for the aforementioned counties
by mid morning, with nothing more than a trace expected. Ensemble
guidance supports this, showing less than a 30% chance of seeing any
measurable precipitation for this event. As the previous upper level
low moves eastwards, an upper level high develops over the northeast
corner of the CONUS. This will continuously send dry air towards the
region, while also keeping any moisture from reaching us. As the
snowpack continues to not develop, temperatures are expected to
remain above average into next week.

&&

.AVIATION...(For the 00Z TAFS through 00Z Tuesday evening)
Issued at 438 PM CST Mon Nov 30 2020

VFR conditions expected through the TAF period.

&&

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

$$

SHORT TERM...APT
LONG TERM...APT
AVIATION...JM



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