


Area Forecast Discussion
Issued by NWS Omaha/Valley, NE
Issued by NWS Omaha/Valley, NE
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580 FXUS63 KOAX 111926 AFDOAX Area Forecast Discussion National Weather Service Omaha/Valley NE 226 PM CDT Fri Jul 11 2025 .KEY MESSAGES... - There could be some lingering flooding this morning in portions of northeast Nebraska. - There is a 20-40% chance of additional storms today and a 5% chance of severe storms. The main threats would be damaging winds and hail. - Temperatures cool slightly on Saturday before warming up Sunday through Tuesday. Active weather returns next week. && .DISCUSSION... Issued at 225 PM CDT Fri Jul 11 2025 Today and Tonight... A few weak showers and thunderstorms festered across the eastern fringes of our forecast area through the morning hours. Temperatures rising into the 70s and 80s combined with dewpoints in the 60s and 70s led to a boost of instability this afternoon, as MUCAPE estimates approached 2000 J/kg. A surface low tracked through southeast Nebraska and into southwest Iowa by early afternoon. A few storms have begun to develop east of the Missouri River. Spotty showers and storms will continue to pop-up in the vicinity of this surface low through the remainder of the afternoon, before gradually shifting off to our east over central Iowa. Thankfully, the better chance for severe storm development looks to remain just to our east and south this afternoon. CAMs suggest another band of storms developing in the vicinity of a cold front, draped from southwest to northeast, over northeast Nebraska this evening. Overall CAM trends continue to indicate this line will struggle, gradually dissipating as it moves southeast this evening. Round 3 will come in the form of an MCV-driven complex that develops near the Nebraska panhandle and surges southeast overnight. While these too are expected to gradually weaken as they move southeast with the lack of daytime heating, an isolated strong to severe updraft can`t be completely ruled out. Overall, all three rounds of storms will likely be limited by the marginal 20-30kts of shear across the region, making it hard for updrafts to become well organized. While the strongest updrafts may be capable of briefly producing some strong winds or marginally severe hail, the greatest threat looks to be the potential for a quick Tornado to spin up near the surface low in southwest Iowa, with this initial round of storms. However, that potential is quickly shifting eastward with the departing low. Saturday through Tuesday... Drier weather returns this weekend as mid-level heights rise. Saturday will actually be fairly nice, with highs in the low 80s and dewpoints only in the low 60s, as opposed to the 70s that we`ve been smothered with recently. A few showers or weak storms may graze the area as a shortwave passes to our south Saturday night/Sunday morning. Otherwise dry weather is expected to prevail across the majority of the forecast area through Sunday. Highs on Sunday will top out in the mid to upper 80s, with dew points into the mid to upper 60s. Temperatures remain warm into next week, with mostly dry conditions through Tuesday. Highs will reach the 90s on Monday and 80s Tuesday. Tuesday Night and Beyond... Widespread rain chances return Tuesday evening into Wednesday, as a cold front drops in from our north and a shortwave moves in from the southwest. Machine learning probs continue to highlight the Central Plains for severe chances Tuesday and Wednesday, likely give the robust instability that will be in place. However, severe storm may be limited by the lack of strong deep layer shear, which is still forecast to remain off to our north. Behind the frontal passage, temperatures will cool into the 70s and 80s, making for a comfortable end to the week. && .AVIATION /18Z TAFS THROUGH 18Z SATURDAY/... Issued at 1214 PM CDT Fri Jul 11 2025 MVFR to IFR stratus deck is expected to gradually dissipate over the next few hours. Winds will remain out north at 5 to 10 kts, with occasional gusts up to 15 kts. Isolated thunderstorms may pop up near KOMA this afternoon, between 18-22Z, but should quickly move east of the TAF site. Another round of storms is possible near the KOFK area between 01-04Z this evening. A third and final round of showers and storms may effect all three TAF sites between 09Z-12Z Saturday morning. Given the spotty nature of the storms and low confidence in whether or not they will actually impact the TAF sites, opted to leave out a mention of -TSRA for the time being. Any lingering showers will diminish Saturday morning, with VFR conditions prevailing through the remainder of the period. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && $$ DISCUSSION...KG AVIATION...KG