169 FXUS63 KOAX 082053 AFDOAXArea Forecast Discussion National Weather Service Omaha/Valley NE 353 PM CDT Mon Sep 8 2025
.KEY MESSAGES...
- Additional showers and thunderstorms, a few of which may become strong will be possible through Tuesday morning.
- Temperatures return to the 80s for highs and the 60s for lows this week.
- Periodic chances for thunderstorms will be present between Wednesday evening and the end of the weekend.
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.DISCUSSION... Issued at 352 PM CDT Mon Sep 8 2025
The forecast period starts out with a shortwave trough sliding southeast across the region and an upper ridge in place over the Rockies. Radar shows a few showers scattered showers between Norfolk and Fairbury. There is a 15-20% chance of a few isolated showers and thunderstorms for the rest of the afternoon into this evening. Late this evening into tonight, thunderstorm chances increase (40-60%), particularly for areas along and south of I-80. A few of these storms may become strong with hail and gusty winds possible. Precipitable water (Pwat) values currently range from around 1-1.4 inches. Expect (Pwat) values to increase to around 1.5 inches this evening into tonight as a moisture plume brings additional moisture to the area. With thunderstorm potential and higher Pwat values, there is a potential for some localized flooding between late tonight and Tuesday morning.
Tuesday morning, showers and storms will gradually end west to east. The ridge will shift east Tuesday and Wednesday. Dry conditions are expected Tuesday afternoon through Wednesday. Afternoon high temperatures will return to the 80s both days. Lows will be in the 50s and 60s.
Chances (15-30%) for a few storms return Wednesday evening through Thursday morning for portions of the area as a weak shortwave arrives. Rain chances clear out again in the afternoon. Thursday through the weekend, the ridge will remain over the region with a few shortwaves moving through it. Highs will generally be in the 80s with lows in the 60s. Friday evening through the end of the weekend, there will be periodic chances for showers and storms.
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.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/... Issued at 1232 PM CDT Mon Sep 8 2025
KOFK: VFR conditions persist through the forecast period. Winds will stay breezy out of the south through around 03Z. There is a 15% chance of an isolated shower or storm in the area from around 00-03Z; however, confidence in location related to the terminal is low at this time. Any storm that does pop up will cause a brief shifting of winds. South winds diminish to 5-10kts after 03Z.
KOMA: VFR conditions prevail through the TAF period. Stout south winds 15-20kts persist through around 00Z, decreasing to 10-15kts. There is a 15-20% chance of a few showers and storms across portions of eastern Nebraska this evening into tonight. Right now, the best chance for storms in the vicinity of the terminal will be from 07-10Z.
KLNK: VFR conditions persist at the terminal through the forecast period. Southerly winds 15-20kts will continue through around 1am, decreasing to 5-10kts. A few showers toward JYR will move southeast this afternoon, which shouldn`t cause any issues with the terminal. The better chance for a few showers/storms for KLNK will be around 07-10Z.
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.OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None.
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DISCUSSION...ANW AVIATION...ANW
NWS OAX Office Area Forecast Discussion