Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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000 FXUS63 KOAX 080535 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 1135 PM CST Thu Dec 7 2017 .UPDATE... Issued at 924 PM CST Thu Dec 7 2017 Beginning to have my doubts about any snow flurries moving into the area tonight. Very light flurries across western NE have been diminishing. Isolated flurries in central SD may hold together moving toward northeast NE in the next few hours, but latest highres CAMS show very little reflectivity moving into the remaining areas overnight and early Friday morning. Thus will leave a mention in for northeast NE tonight, but pull it from other locations. Also have adjusted temps a bit, for those favored locations which dropped quickly right after sunset. && .SHORT TERM...(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. && .AVIATION...
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(For the 06Z TAFS through 06Z Friday night) Issued at 1133 PM CST Thu Dec 7 2017 Generally VFR conditions at the TAF sites, although MVFR clouds could develop at KOFK 14-17z. Could also be a snow flurry or two at KOFK 08-10z. Winds at KOFK also increase to 11 to 20 knots by 14z, and up to 12 knots at KLNK/KOMA by 15z.
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&& .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && $$ UPDATE...DeWald SHORT TERM...DEE LONG TERM...DEE AVIATION...DeWald is the U.S. government's official web portal to all federal, state and local government web resources and services.