Area Forecast Discussion
Issued by NWS Rapid City, SD

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FXUS63 KUNR 221714
AFDUNR

Area Forecast Discussion For Western SD and Northeastern WY
National Weather Service Rapid City SD
1114 AM MDT Sat Apr 22 2017

.SHORT TERM...(Today Through Sunday Night)
Issued at 333 AM MDT Sat Apr 22 2017

Upper level analysis has a rex block across the central CONUS with
ridging across the Great Basin area. Skies are partly to mostly
cloudy across the Northern Plains with the light shower activity
diminished over the last two hours. At the surface, weak high
pressure is located across the Dakotas. Temperatures at 3 am are
in the 30s and low 40s with light and variable winds.

An upper ridge will bring mild weather for the weekend. Other than
some light showers over the Hills this afternoon, conditions will
be dry until the next system moves in Sunday night. Highs will be
in the upper 50s to upper 60s today, warming to the mid 60s to
mid 70s on Sunday. Upper flow will become southwesterly by Sunday
night ahead of the approaching trough, and southwesterly winds
will become breezy across south central SD on Sunday.

.LONG TERM...(Monday Through Friday)
Issued at 333 AM MDT Sat Apr 22 2017

Unsettled weather returns for the upcoming week as a series of
shortwaves begins to cross the region. Daily chances for rain and
rain showers are expected in most areas. Colder air could bring
some overnight/early morning snow to higher elevations depending
on the timing of the systems. At this point, the best windows for
wide spread precipitation look to be Monday night into Tuesday
morning, and again Wednesday night into Thursday. Near average
temperatures are expected for Monday, with below average highs in
the 40s and low 50s for the rest of the week.

&&

.AVIATION...(For the 18Z TAFS Through 18Z Sunday)
Issued At 1110 AM MDT Sat Apr 22 2017

Areas of MVFR CIGS with isolated -SHRA may be encountered over
parts of northeastern Wyoming and the Black Hills through the
afternoon. Otherwise, VFR conditions will prevail.

&&

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

$$

SHORT TERM...15
LONG TERM...15
AVIATION...10


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