Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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FXUS63 KOAX 261729

Area Forecast Discussion
National Weather Service Omaha/Valley NE
1229 PM CDT Wed Apr 26 2017

.SHORT TERM...(Today through Friday)
Issued at 355 AM CDT Wed Apr 26 2017

After a little patchy morning drizzle, much of the day should be
cloudy, cool and blustery.

A tight pressure gradient over the area will begin to relax later
this evening once surface high pressure ridge builds south out of
the Dakotas. Main forecast concern centers around near or below
freezing temperatures overnight as we slide a little deeper into
the growing season. Some question remains as to how much cloud
cover and wind we can keep in our northeastern counties, which
could prevent much frost formation for this area. For simplicity
and advanced notice to growers, have hoisted a frost advisory for
the entire area late tonight into Thursday morning. Day shift may
need to consider additional freeze headlines for our north if
winds/clouds look to diminish more than currently forecast.

Otherwise, a slow warm-up into the mid to upper 50s is expected
Thursday as high pressure remains over the area. An area of showers
will likely develop across central Nebraska late Thursday ahead of
next approaching shortwave trough. These will continue to spread
east through the day Friday before moving out Friday evening.

.LONG TERM...(Friday night through Tuesday)
Issued at 355 AM CDT Wed Apr 26 2017

Dry conditions will be short-lived with precipitation spreading
north across the area by Saturday afternoon ahead of a deep closed
low rounding the Four Corners region. Think a good portion of the
early part of Saturday could be dry, with precipitation moving
across the area by mid-late afternoon. Widespread precipitation
is then expected throughout the remainder of the weekend ahead of
the above mentioned low which slides northeast across eastern
Nebraska and eventually into southern Minnesota. This puts our
area within the deformation zone into Monday. Will continue to
monitor temperature trends with this system, but for now have
included a mention of ra/sn mix across our northern counties both
Sunday and Monday mornings. System is still a ways out but both
GFS and ECMWF drop about 0.50-1.00"+ QPF over much of the area.


.AVIATION...(For the 18Z TAFS through 18Z Thursday afternoon)
Issued at 1228 PM CDT Wed Apr 26 2017

MVFR ceilings are expected to gradually lift to VFR levels late
this afternoon and into the early evening. Gusty northwesterly
winds will also slowly diminish by around 00Z this evening.


NE...Frost Advisory from midnight tonight to 9 AM CDT Thursday for

     Freeze Warning from midnight tonight to 9 AM CDT Thursday for

IA...Frost Advisory from midnight tonight to 9 AM CDT Thursday for

     Freeze Warning from midnight tonight to 9 AM CDT Thursday for



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