Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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000 FXUS63 KOAX 250454 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 1154 PM CDT Mon Apr 24 2017 .SHORT TERM...(Tonight through Thursday) Issued at 300 PM CDT Mon Apr 24 2017 Wet and cold conditions will be moving into the area during the period. At 19Z a cold front curved from low pressure over northeast South Dakota into north central and northwest Nebraska with a surface trough located over central Nebraska. This system will move slowly southeast tonight and be over southeast Nebraska and western Iowa on Tuesday. Low pressure over southeast Colorado will work its way slowly northeast along the front tonight and Tuesday. Scattered showers and isolated thunderstorms are expected to develop across the area late tonight as vertical motion fields increase in advance of an upper level wave moving out of the central Rockies. More widespread showers and rain is indicated for Tuesday especially across northern parts of the area as overrunning develops across the frontal boundary laying across southeast Nebraska and western Iowa and additional weak wave energy moves across the region. Rain will gradually diminish and move southeast Tuesday night as the cold front works slowly south and east of the area with the better forcing also shifting to the south and northeast. Some lingering showers are possible yet on Wednesday as the main upper trough moves through the area with rain ending by Wednesday evening in the far southeast. Temperatures will be turning colder during the period with some chance of frost Thursday morning as weak high pressure moves into the area. Frost potential will depend on how much clearing is able to develop and how long areas experience a lack of cloud cover. .LONG TERM...(Thursday night through Monday) Issued at 300 PM CDT Mon Apr 24 2017 Pattern looks to remain on the cold and wet side through the period as additional strong upper waves develop and move across the region. Models differ a bit however on timing and track of the primary systems so forecast confidence on the lower end at this time. && .AVIATION...
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(For the 06Z TAFS through 06Z Tuesday night) Issued at 1123 PM CDT Mon Apr 24 2017 Latest sfc obs revealing a cold front extending SW from w-cntrl MN to s-cntrl Neb. Winds have already switched to the NW at KOFK. However...with bndry stalling just N/NW of KOMA/KLNK...expect southerly winds to prevail at both TAF sites thru this morning. Front will make a southward push early this aftn with conditions deteriorate to MVFR/SHRA at all terminals.
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&& .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && $$ SHORT TERM...Fobert LONG TERM...Fobert AVIATION...DEE

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