Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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199 FXUS63 KOAX 122348 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 548 PM CST Tue Dec 12 2017 .SHORT TERM...(Tonight through Friday) Issued at 319 PM CST Tue Dec 12 2017 Quiet weather tonight with west southwest winds ahead of a strong cold front that moves into the area on Wednesday as an Alberta clipper moves out of the northern Plains. This could bring isolated showers to the NE/SD/IA tri state region in the morning, but more importantly, will substantially increase northwest winds by mid morning. Wind gusts could easily reach 45 to 55 mph as the surge of colder air begins to move in. Thus we issued a wind advisory for northeast NE and west central IA valid from 9am-4pm. Locations south of the advisory area may be just below wind advisory criteria with gusts up to 45 mph, but will let the next shift decided if the advisory needs to be expanded further south. Quiet and colder weather again for Wednesday night. Another Alberta clipper arrives on Thursday, which brings a chance of snow and rain to the area, with minor accumulations less than 1/2 inch possible in northeast NE. Precip lingers into Thursday evening, but ends by midnight. Warming temps expected again for Friday with west southwestern surface flow. .LONG TERM...(Friday night through Tuesday) Issued at 319 PM CST Tue Dec 12 2017 Another Alberta clipper drives a cold front into the area on Saturday. Still there is not impressively cold air with this next front, but it will still bring a small chance of rain changing to snow along/north of I80 by Saturday afternoon/evening. Slightly cooler but still above normal on Sunday, then moderating temps well above normal for Monday and Tuesday. && .AVIATION...
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(For the 00Z TAFS through 00Z Wednesday evening) Issued at 526 PM CST Tue Dec 12 2017 A cold front dropping into ern NE overnight will be the focus for an extreme LLWS threat at all terminals from mid evening into Wednesday morning. LLWS of 35kt are expected to develop this evening before increasing to 50kt shortly after midnight. The LLWS threat will diminish then late Wednesday morning.
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&& .OAX WATCHES/WARNINGS/ADVISORIES... NE...Wind Advisory from 9 AM to 4 PM CST Wednesday for NEZ011-012- 015>018-031>034. IA...Wind Advisory from 9 AM to 4 PM CST Wednesday for IAZ043-055-056. && $$ SHORT TERM...DeWald LONG TERM...DeWald AVIATION...DEE

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