Area Forecast Discussion
Issued by NWS Rapid City, SD

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FXUS63 KUNR 132057
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
157 PM MST Mon Nov 13 2017

.DISCUSSION...(This Evening Through Monday)
Issued at 141 PM MST Mon Nov 13 2017

Water vapor shows upper ridge over the Rockies/Plains with very
dry air over the Northern Plains. Upper trof is moving into the
Pac NW. Temps have warmed into the lower 60s many areas of our
cwfa given the dry air and southwest boundary layer flow.

Dry and mild conditions expected overnight with a cool front
moving through on Tuesday. Moisture very limited with the cool
front so precip not expected, but breezy northwest winds expected.
Some temps well into the 60s possible south/east of the Black
Hills ahead of the cool front. Upper ridge rebuilds for
Wednesday/Thursday, with elevated fire weather conditions
expected Thursday given very dry and gusty southwest winds and low
rh`s ahead of a cold front. Cooler conditions with gusty
northwest winds then expected on Friday behind the cold front.
Could be some light rain/snow showers late Thursday and Friday,
but moisture will remain limited. Upper ridge then rebuilds for
the weekend.

&&

.AVIATION...(For the 18Z TAFS Through 18Z Tuesday)
Issued At 141 PM MST Mon Nov 13 2017

VFR conditions will continue through Tuesday morning.


&&

.FIRE WEATHER...
Issued at 141 PM MST Mon Nov 13 2017

A cool front will cross the region early Tuesday. Ahead of the
front, there could be a period of dry Chinook winds along the
eastern foothills of the Black Hills overnight. Breezy northwest
winds with minimum RH`s down into the 20s expected on Tuesday.
Slightly cooler weather expected Wednesday. Thursday looks warm,
dry, and windy with southwest winds bringing elevated fire
conditions to the region. Gusty northwest winds will bring cooler
conditions for Friday. Chances for wetting rains will remain low
through the week.

&&

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

$$

DISCUSSION...Johnson
AVIATION...10
FIRE WEATHER...Johnson



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