998 FXUS63 KOAX 061914 AFDOAXArea Forecast Discussion National Weather Service Omaha/Valley NE 214 PM CDT Mon Oct 6 2025
.KEY MESSAGES...
- Rain showers will continue before gradually tapering off from north to south this evening. Cooler temperatures continue today with highs in the 50s.
- Temperatures gradually warm through the week, with highs back in the 80s by this weekend.
- A weak system could bring isolated showers to the area on Thursday (15-20% chance). A pattern shift is expected by late this weekend, bringing cooler temperatures and additional precipitation chances.
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.DISCUSSION... Issued at 210 PM CDT Mon Oct 6 2025
Water vapor imagery this afternoon displays a broad, positively tilted mid- to upper-level trough extending from central Canada into the northern Plains. This feature has driven a slow-moving cold front southeastward over the past 24 hours. As of 1 PM, surface analysis places the front from northeast KS into northwest MO. Behind the front, scattered showers continue as a shortwave disturbance pivots across the region. The post-frontal airmass, along with lingering cloud cover and precipitation, has kept afternoon highs seasonably cool, generally in the mid to upper 50s. These high temperatures are nearly 30 degrees cooler than temperatures across the area 48 hours ago. Elevated instability will bring the chance for a few rumbles of thunder this afternoon, particularly south of Interstate-80.
Shower activity will gradually diminish from north to south through the evening and early overnight period. Observed rainfall totals over the past 24 hours range from 0.50" along Interstate-80, increasing to 2-3 inches in southeast NE and southwest IA. Additional rainfall totals are expected to peak around 0.15".
Overnight lows will likely be the coolest of the week, dipping into the low 40s. Patchy fog may develop early Tuesday morning, as light winds and residual low-level moisture promote favorable conditions. Skies will gradually clear on Tuesday as upper-level ridging begins to build across the central and southern Plains. At the surface, high pressure will settle into the area, bringing a warming trend through the remainder of the week. Highs will climb into the upper 60s to low 70s on Tuesday and Wednesday, with mid to upper 70s expected Thursday and Friday. Overnight lows will generally stay in the mid 50s.
A weak shortwave disturbance is expected to pass through the region on Thursday. However, limited moisture will keep precipitation chances low, with PoPs topping out near 15-20%. Temperatures may reach the low 80s by the weekend, ahead of another upper-level trough that is forecast to push into the region later Sunday into next week. This system is expected to bring cooler temperatures and renewed chances for precipitation (PoPs 15-30%).
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.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/... Issued at 1142 AM CDT Mon Oct 6 2025
Rain showers are expected to continue this afternoon, bringing a mix of MVFR and VFR conditions. MVFR conditions are most likely for areas along and south of Interstate-80, particularly KLNK. Brief period of IFR conditions will be possible under any heavier showers. Showers will gradually taper off later this afternoon and evening, clearing from north to south with ceilings gradually improving afterwards. Northeasterly winds will continue at 8-10 kts, with gusts up to 18 kts possible.
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.OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None.
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DISCUSSION...Wood AVIATION...Wood
NWS OAX Office Area Forecast Discussion