Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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FXUS63 KOAX 300548

Area Forecast Discussion
National Weather Service Omaha/Valley NE
1148 PM CST Tue Nov 29 2016

.SHORT TERM...(tonight through Friday)
Issued at 204 PM CST Tue Nov 29 2016

Near-vertically stacked potent low pressure system continues to
slowly move southeast across southern Minnesota this afternoon
with a series of strong vort lobes rotating around the main low. A
fairly strong surface pressure gradient in addition to strong
momentum transfer in northwesterly flow has created gusty
northwest surface winds this afternoon. Continued cold air
advection is expected throughout the night and into Wednesday.
Will continue to carry small precipitation chances through the
night and Wednesday in our northern counties. Any precipitation
amounts should remain light with no more than a few hundredths of
an inch of QPF. The system will finally shift out of the area by
Wednesday night leaving clearing skies and chilly temperatures

.LONG TERM...(Friday night through Tuesday)
Issued at 204 PM CST Tue Nov 29 2016

Some moderation in temperatures is likely into the weekend ahead
of the next developing western trough. Highs over the weekend will
gradually warm into the mid to upper 40s.

EC and GFS are in fairly good agreement in digging an upper trough
over the western CONUS by 12Z Tuesday. This eventually closes off
and moves into the Central Plains by mid next week which is
beyond our forecast period so for now will just keep a close eye
on the evolution.


.AVIATION...(For the 06Z TAFS through 06Z Wednesday night)
Issued at 1139 PM CST Tue Nov 29 2016

The large storm system over Minnesota will remain in place tonight
and slowly drift into Wisconsin Wednesday. A shortwave trough
combined with reinforcing colder air will result in on and off
flurries and light snow into Wednesday. MVFR cigs should persist
tonight and Wednesday morning. The flurries should become more
common and mentioned a tempo group for IFR conditions with the
light snow at KOFK toward 12Z. Some mprovement in the cigs could
occur at KLNK Wednesday, however MVFR conditions should linger
through much of the day at KOFK and KOMA. Northwest winds will
remain 10 to 20kts and gusty.




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