Area Forecast Discussion
Issued by NWS Aberdeen, SD

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FXUS63 KABR 230943

Area Forecast Discussion
National Weather Service Aberdeen SD
343 AM CST Thu Feb 23 2017

.SHORT TERM...(Today through Friday Night)
Issued at 340 AM CST Thu Feb 23 2017

We`re back to where we started from about 48 hours ago before the
anomalous jog northwards in some of the models yesterday. As such
have removed more of the counties from our headlines, with the main
areas impacted now along interstate 90, with less certainty between
interstate 90 and highway 14 prompting a downgrade of the watch to a
winter weather advisory. The southern Coteau will also see
accumulating snow, but with best forcing to the south of that area,
totals will be only a few inches. 1/2 km winds out of the northeast
overnight will top out around 30kts across southern counties.
Visibility in falling snow will be diminished even further by these
winds, however the recent melt means that snow will stick to the
ground and blowing/drifting will be non-existent once the snowfall

.LONG TERM...(Saturday through Wednesday)
Issued at 340 AM CST Thu Feb 23 2017

An upper level trough over the region this weekend will keep
temperatures near average with highs in the upper 20s and 30s.
Shortwave activity moving through the trough coupled with some cold
air advection will squeeze out some isolated snow showers. Upper
troughing will dominate the region through mid week. The trough will
begin to exit on Thursday and temperatures will reflect that as they
pop back into the 40s.

While no significant precip is expected, there will be a couple of
sfc low pressure systems that move quickly through and may bring
some additional showers.


.AVIATION...(For the 06Z TAFS through 06Z Thursday Night)
Issued at 1121 PM CST Wed Feb 22 2017

The back edge of the cold air stratus has pushed through the KABR
terminal and, based off current satellite trends, will likely be
pushing through the KATY terminal within the next 6 hours as well.
KMBG and KPIR terminals are likely to remain in the low clouds. Look
for an area of snow to approach the southwestern CWA by late Thursday
morning, impacting KPIR initially, before spreading over toward
the KATY terminal late in the day.


SD...Winter Storm Warning from 9 AM this morning to noon CST Friday
     for SDZ045-048-051.

     Winter Weather Advisory from 9 AM CST /8 AM MST/ this morning to
     noon CST /11 AM MST/ Friday for SDZ033-035>037.



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