Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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FXUS63 KOAX 280420

Area Forecast Discussion
National Weather Service Omaha/Valley NE
1120 PM CDT Sat May 27 2017

.SHORT TERM...(Tonight through Tuesday)
Issued at 114 PM CDT Sat May 27 2017

Upper rough rotating around upper low over Manitoba will move
across eastern Nebraska and western Iowa tonight. A few showers
are possible across western parts of the OAX CWA early this
evening. The remainder of the forecast in the short term is dry.
Another cold front is expected to move across the area Sunday
night into Monday morning, but no precipitation is expected with
the passage of the front. Temperatures will be slightly below
normal with highs in he lower to mid 70s.

.LONG TERM...(Tuesday night through Saturday)
Issued at 114 PM CDT Sat May 27 2017

Upper level ridging moves across the region on Wednesday with
gradual warming into next weekend. The warmup will also be
associated with a return flow of southerly winds and moisture over
the area. There are indications of a weak upper level wave moving
through the upper ridge Thursday through Saturday. Therefore,
there is a chance of precipitation later in the week.


.AVIATION...(For the 06Z TAFS through 06Z Sunday night)
Issued at 1119 PM CDT Sat May 27 2017

Current water vapor imagery depicts the primary mid-level trough
axis progressing through the mid MO Valley with a secondary
vorticity lobe shifting southeast across SD. These features are
generally associated with mid and high-level cloudiness with some
light shower activity noted with the latter disturbance over
south-central into southeast SD. Latest short-term model guidance
suggests that this precipitation should decrease in areal
coverage while moving into northeast NE over the next 2-3 hours.
Therefore, we will not include any mention in the KOFK TAF. Light
northwest winds will strengthen and become gusty by late Sunday
morning or early afternoon before diminishing by Sunday evening.
VFR conditions will prevail with mainly passing mid and high-
level clouds.




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