Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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000 FXUS63 KOAX 072122 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 322 PM CST Thu Dec 7 2017 .SHORT TERM...
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(Tonight through Sunday) Issued at 320 PM CST Thu Dec 7 2017 Water vapor imagery this afternoon was showing a well defined ridge situated over the west coast with a deep positive tilt trof extending from southeast Canada to the southern Plains. At the surface...high pressure was in control over the western half of the CONUS. Going forecast looks in good shape, so no major changes planned. Models in good agreement that large scale flow will not be too progressive into and through this weekend with a mean ridge west/trof east with a series of vort maxes dropping into the upper/mid MS region. Fortunately, the CWA will not fall under the influence of any. Will continue mention of possible flurry activity for later tonight given brief period of subtle upglide. Otherwise...cold air advection spills into the central Plains with frontal passage through the Omaha metro sometime toward 12z Friday. Highs Friday and Saturday will struggle to top out in the mid 30s north/upper 30s south. Shallow mixing aids with temp rebound on Sunday with highs in the low 50s east/mid 50s west. .LONG TERM...(Sunday night through Thursday) Issued at 320 PM CST Thu Dec 7 2017 NIL significant weather to be concerned with as mean ridging west/trof east prevails during the extended periods. Given no significant thermal intrusion seen on the horizon, expect above normal temps with highs generally in the low/mid 40s and lows in the mid 20s.
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&& .AVIATION...(For the 18Z TAFS through 18Z Friday afternoon) Issued at 1130 AM CST Thu Dec 7 2017 VFR conditions will prevail across most of the area through the forecast. A period of MVFR cigs and vsbys with patchy snow showers may move into parts of northeast Nebraska including the KOFK area as a surface trough drops into the region. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && $$ SHORT TERM...DEE LONG TERM...DEE AVIATION...Fobert

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