Area Forecast Discussion
Issued by NWS Rapid City, SD

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529
FXUS63 KUNR 241729
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
1129 AM MDT Sat Sep 24 2016

.SHORT TERM...(Today Through Sunday Night)
Issued at 317 AM MDT Sat Sep 24 2016

Water vapor shows upper low lifting into srn WY. Surface low is
located over wcntrl SD. Shra and isold tsra continue to shift N/W
through the cwfa early this mrng.

Today...Upper low will gradually lift through WY and into nwrn SD
late this aftn. Shra will be wdsprd over nern WY...with less
chances over wrn WY. Best chances for tsra will extend from scntrl
SD into nwrn SD where instability remains greatest. Could see some
qpf amounts in excess of 1 inch today over nern WY.

Surface low will lift into wrn SD in the aftn with gradient
tightening across our cwfa. Advisory criteria winds expected for
much of nwrn SD by late in the aftn and an advisory is in effect.

Temps will be wide ranging...from around 50 in nern WY to the
upper 70s in scntrl SD.

Tonight...Wrap around shra expected in our nrn zones with some
upslope enhancement in the nrn Blkhls...with activity winding down
overnight. Gusty NW winds will continue.

Sunday...Clearing skies expected with gusty nw winds continuing.
Advisory criteria winds will continue for nwrn SD...and the
advisory may need to be extended into scntrl SD. Winds will
gradually diminish in the aftn as sfc high builds into nern WY and
far wrn SD. Highs in the 50s to mid 60s.

.LONG TERM...(Monday Through Friday)
Issued at 317 AM MDT Sat Sep 24 2016

Strong upper ridging combined with a slowdown in the upper
pattern will bring dry weather to the region through much of the
upcoming work week. Warm air advection will bring temperatures
into the 70s to low 80s by Tuesday and continuing through the end
of the week. Southwest flow is progged to develop across the
region late in the week which may bring some showers and
thunderstorms to the area.

&&

.AVIATION...(For the 18Z TAFS Through 18Z Sunday)
Issued At 1125 AM MDT Sat Sep 24 2016

With showers continuing to affect northeast WY and far western SD
today...MVFR/IFR conditions will persist. VFR conditions across
southeast to south central SD will continue today as drier air
pushes into the area. Gusty NW winds are expected today and
tonight...with the strongest winds across northwest SD...where 25
to 35 knot gusts are expected through Sunday morning.

&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...Wind Advisory from 6 PM this evening to 6 PM MDT Sunday for
     SDZ002-013-014-025-026-031-032-072-073.

     Wind Advisory from 4 PM this afternoon to 6 PM MDT Sunday for
     SDZ001-012.

WY...None.
&&

$$

SHORT TERM...Johnson
LONG TERM...13
AVIATION...15



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