Area Forecast Discussion
Issued by NWS Aberdeen, SD

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FXUS63 KABR 132121

Area Forecast Discussion
National Weather Service Aberdeen SD
321 PM CST Wed Dec 13 2017

.SHORT TERM...(This Evening through Thursday Afternoon)
Issued at 318 PM CST Wed Dec 13 2017

Weak lift along a frontal boundary draped across northeast SD
will continue producing patchy freezing drizzle and light snow
through this evening. The precipitation should mainly impact the
higher terrain areas of the Sisseton Hills. Have issued an SPS
highlighting the potential for slick roads in our eastern CWA
through this evening.

Another storm system will dive southward across the western
Dakotas late tonight and through the morning hours on Thursday.
This system will bring light, accumulating snow to the western
half of the CWA. Snowfall amounts of a dusting to one inch can be
expected with this system. With the lack of snow cover, combined
with little expected snowfall, do not believe blowing snow will be
much of an issue. Of course there could be some reduction in
visibility with falling snow.

.LONG TERM...(Thursday Evening through Wednesday)
Issued at 318 PM CST Wed Dec 13 2017

The upper level flow pattern remains progressive through the
extended with a number of troughs moving through the northern
plains. However, with lack of moisture at the sfc and and lack of
organized sfc low pressure systems, any precipitation will be very
light and sporadic. Temperatures will remain around 10 to 15 degrees
above average for mid to late December with highs in the 30s and 40s


.AVIATION...(For the 18Z TAFS through 18Z Thursday Afternoon)
Issued at 1129 AM CST Wed Dec 13 2017

MVFR cigs will continue to impact all terminals except KPIR
through the rest of the afternoon. Cigs may become low end IFR
later tonight. However another storm system will cross the region
late tonight through Thursday morning. This system will bring
light snow to most terminals. With breezy northerly winds and
falling snow, reduction in visibility can be expected for the
terminals of KPIR and KMBG.




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