Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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000 FXUS63 KOAX 211115 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 515 AM CST Wed Feb 21 2018 .SHORT TERM...(Today through Friday) Issued at 300 AM CST Wed Feb 21 2018 QPF and timing of precip type will be main concerns in the forecast. High pressure centered over north central Nebraska at 08Z will shift east toward the lower Great Lakes today and give the area a mostly sunny but cold day today before clouds and precip return tonight and Thursday. Thermal profiles will be starting out cold across the area tonight into Thursday morning with light snow expected to spread north from the southern border through the overnight with main band of snow setting up south of Lincoln and Omaha into southwest Iowa. Snowfall is expected to be in the 1 to 2 inch range for this area by Thursday morning. Soundings and RH progs suggest mid levels will be drying out between 06Z and 12Z Thursday in the south so some freezing drizzle may replace the light snow in that area during the early morning. Amounts at this time look to be rather light and with the prior snowfall don`t expect any major ice problems. During the day Thursday periods of mixed precipitation are likely across all the area as pockets of drier mid level air spread toward the northern Nebraska border, although snow will likely be more prevalent there during the afternoon. A stronger surge of dry mid level air is indicated to move into southeast Nebraska and southwest Iowa Thursday evening with freezing drizzle becoming the dominant precipitation type there at that time while a mix of light snow and freezing drizzle continues in the north. Precip then ends for the area after 06Z Friday as the upper wave providing the forcing lifts off toward the upper Great Lakes. Decreasing clouds then on Friday with temperatures climbing above freezing in southern parts of the area and around freezing in the north. .LONG TERM...(Friday night through Tuesday) Issued at 300 AM CST Wed Feb 21 2018 Pattern looks to remain wet in the extended period with PoPs increasing already Friday night into Saturday. More mixed precip appears likely for the area with moderate snow possible for parts of northeast Nebraska. Dry weather returns Saturday night into the early part of next week but some chance of more precip by mid week. && .AVIATION...(For the 12Z TAFS through 12Z Thursday morning) Issued at 514 AM CST Wed Feb 21 2018 VFR conditions through the first half of the forecast. Snow may develop at all three TAF sites, as soon as 04z at KLNK/KOMA and not until 07z at KOFK. The snow could mix with or change to FZDZ at KLNK toward the end of the period by 10z. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && $$ SHORT TERM...Fobert LONG TERM...Fobert AVIATION...DeWald

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