Area Forecast Discussion
Issued by NWS Rapid City, SD

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018
FXUS63 KUNR 150414
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
1014 PM MDT Mon Oct 14 2019

.DISCUSSION...(This Evening Through Monday)
Issued at 229 PM MDT Mon Oct 14 2019

Upper level analysis has transient ridge shifting east with
shortwave trof dropping through Montana. Skies are mostly clear
across the Northern Plains. At the surface, weak trof is
progressing west to east across the Dakotas with breezy north
winds developing in a well mixed atmosphere behind the trof.
Temperatures at 2pm are in the 60s to lower 70s.

Decent pressure gradient remains across the area overnight with
breezy northwest winds in areas. Temperatures will remain mild in
breezy spots, in the 30s.

On Tuesday, tight pressure gradient continues with northwest winds
becoming fairly breezy again. Cooler temperatures expected with
highs only in the 40s.

Upper ridge rebounds across the Northern Plain for Wednesday and
Thursday. Dry conditions continue with above average temperatures
expected. Widespread 70s possible on Thursday.

Friday into next weekend, mean upper troughing develops over central
North America with a downward trend in temperatures as Canadian air
slides into the CWA. Chances for rain and snow increase on Sunday
as the main shortwave moves through the area.

&&

.AVIATION...(For the 06Z TAFS Through 06Z Tuesday Night)
Issued At 1012 PM MDT Mon Oct 14 2019

VFR conditions are expected most places. The exception will be
some MVFR cigs around the northern Black Hills tonight and across
NW SD through much of Tues afternoon. Gusty NW winds will persist
through most of Tues, mainly across the SD plains.

&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...None.
WY...None.
&&

$$

DISCUSSION...15
AVIATION...JC



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