Area Forecast Discussion
Issued by NWS Omaha/Valley, NE
Issued by NWS Omaha/Valley, NE
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023 FXUS63 KOAX 172119 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 319 PM CST Mon Nov 17 2025 .KEY MESSAGES... - 20-50% chance of rain this evening. Breezy winds out of the southeast gusting to 20-35 mph should decrease this evening. - Another storm system will move into the region Thursday through Friday, bringing a 20-50% chance for rain. - Mild, dry weather returns over the weekend before a third system arrives on Monday. && .DISCUSSION... Issued at 319 PM CST Mon Nov 17 2025 Cloud cover has spread across eastern Nebraska and western Iowa as a low pressure system approaches, currently located over the Nebraska Panhandle. Scattered showers have developed along the warm front along the Missouri River north of Omaha. Marginal elevated instability has led to isolated thunderstorms along this boundary. We`ll continue to see chances for isolated thunderstorms as showers expand across the area this afternoon. A cold front will move through tonight shifting winds to northerly and bringing back in seasonably cool air. Cooler temperatures on Tuesday with highs in the mid 40s to mid 50s across our area. Dry weather returns as a ridge moves overhead with surface high pressure in place. Ridging amplifies over the southeastern CONUS midweek leading to strengthening southwesterly flow across the central CONUS. A shortwave will move through on Wednesday bringing a shift back to southerly surface winds which will warm afternoon highs back up into the mid 50s to low 60s Wednesday afternoon. Late in the week we see the strong upper-level trough over the western CONUS eject a strong Low east toward the Rockies as a second strong Low takes its place. This Low will weaken as it approaches, expected to pass south of our area across Kansas and Missouri. This would be a great snow scenario if we were colder, but with afternoon highs still in the 50s on Thursday, and 40s on Friday, we should stay too warm for any potential snow. Expect a cold rain to start to move in from the south on Thursday, staying mainly south of I-80 through the afternoon. Rain chances expand northward Thursday night into Friday, coming to an end Friday evening before the sub-freezing temperatures arrive. Ridging moves back in over the weekend, with a warm front bringing temperatures back up into the mid 50s for Saturday and Sunday. The next significant weather system looks to arrive around Monday next week. Ensemble still not showing any significant chance for snow even with this system. The Climate Prediction Center is forecasting the potential for a Sudden Stratospheric Warming Event toward the end of November, bringing in colder temperatures around the second half of next week into early December. We are already seeing colder temperatures showing up toward the end of our forecast models/ensembles supporting this scenario. With this we could potentially see chances of snow start to increase, with ensembles starting to ramp up chances the weekend after Thanksgiving. && .AVIATION /18Z TAFS THROUGH 18Z TUESDAY/... Issued at 1156 AM CST Mon Nov 17 2025 MVFR cigs have expanded eastward to around KFET, currently impacting KOFK and KLNK. Models keep the MVFR cigs west of KOMA, but seeing current trends continuing to expand eastward closer toward KOMA, went ahead and put in cigs around FL030 at KOMA starting around 20Z. MVFR cigs will hold over the area until around 00-01Z at KOMA and KLNK, and closer to 04Z at KOFK. A cold front will move across the area shifting winds to northwesterly overnight and bringing MVFR cigs back into northeast Nebraska and KOFK early Tuesday. As of right now there`s about a 20% chance MVFR cigs make it as far south as KOMA and KLNK around 12Z, so keeping these out of the TAFs. Expect MVFR cigs to hold through the remainder of the TAF period over northeast Nebraska while VFR cigs hold at KOMA and KLNK with winds staying out of the northwest. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && $$ DISCUSSION...McCoy AVIATION...McCoy