Area Forecast Discussion
Issued by NWS Rapid City, SD

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FXUS63 KUNR 270405

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
1005 PM MDT Wed Oct 26 2016

.SHORT TERM...(This Evening Through Thursday Night)
Issued at 136 PM MDT Wed Oct 26 2016

Broad upper ridge covers the western CONUS. Satellite shows the
area of low clouds across central SD dissipating, with mostly
sunny skies over the CWA, and mid/high clouds streaming in from
the west. There is a surface trough over northeastern WY/western
SD. Winds are light and variable, and temps are in the 60s.

Mild and dry weather will continue as upper ridge axis moves over
the central CONUS Thursday. Low-level flow will become southwesterly
tonight and increase on Thursday, bringing warmer air to the region.
Highs Thursday will be in the 70s to lower 80s, which may break
records in some locations. Lows tonight will be in the 40s, with
Thursday night`s lows in the mid 40s to mid 50s.

.LONG TERM...(Friday Through Wednesday)
Issued at 136 PM MDT Wed Oct 26 2016

The western upper level ridge will flatten a bit on Friday as a
weak shortwave crosses the Great Basin area. Slightly cooler highs
are expected on Friday as a cold front crosses the area followed
by gusty northwest winds. This shortwave, combined with low and
mid level cold advection, will bring a chance of showers on Friday
night and Saturday. The cooler air flowing into the region will
make Saturday the coolest day, although temperatures will still be
around average for this time of year. The upper ridge will rebound
behind the departing shortwave, with dry weather and warmer
temperatures on Sunday. Another shortwave trough will bring
additional chances for showers from Sunday night through Monday,
with only a slight cooldown in temperatures.


.AVIATION...(For the 06Z TAFS Through 06Z Thursday Night)
Issued At 1005 PM MDT Wed Oct 26 2016

VFR conditions will continue through Thursday evening.




SHORT TERM...Pojorlie
AVIATION...Johnson is the U.S. government's official web portal to all federal, state and local government web resources and services.