829 FXUS63 KOAX 262305 AFDOAXArea Forecast Discussion National Weather Service Omaha/Valley NE 605 PM CDT Fri Sep 26 2025
.KEY MESSAGES...
- Above average temperatures will continue into next week with highs generally in the upper 70s to mid 80s.
- Dry conditions are expected to persist into next week.
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.DISCUSSION... Issued at 216 PM CDT Fri Sep 26 2025
Water vapor imagery this afternoon displays a mid- to upper-level ridge centered over the south-central CONUS. At the surface, high pressure overspreads much of the east-central CONUS, bringing clear skies to the area and afternoon highs expected in the low to mid 80s, about 5 to 10 degrees above the climatological average for late September. The primary concern today will be wildfire smoke lingering in the area, with some minor impacts expected at the surface.
Tonight into Saturday morning, a shortwave trough pivoting across the Dakotas/Manitoba will help to push a weak cold front through the area. Limited moisture will bring a dry frontal with surface winds veering from southerly to northerly through its passage. The shift in winds will help to clear the remaining wildfire smoke from the area. The post-frontal airmass will bring a small dip in Saturday temperatures with highs expected in the mid 70s to low 80s with overnight lows into Sunday morning expected into the upper 40s to low 50s.
Through the remainder of the weekend into early next week, mid- to upper-level riding will continue to overspread the central Plains, bringing continued seasonably warm temperatures. Highs will continue generally in the upper 70s to mid 80s with overnight lows in the upper 50s and 60s. Wildfire smoke may begin to pivot back into the area on Sunday, though surface impacts are expected to remain minimal. The primary concerns through the week will be patchy morning fog and fire weather concerns as we begin a stretch with little precipitation, though no day currently stands out as particularly low RH or windy.
The continued ridging will help to keep dry conditions through much of the week. A weak wave is expected to briefly damped the ridge late Monday into early Tuesday, though the limited moisture in place will keep precipitation chances negligible. Thursday into Friday, a high amplitude trough begins to push into the region, bringing the return of southwesterly flow aloft and precipitation chances. PoPs currently peak at 20% to end the work week. However, the warm temperatures are expected to stick around as both the 6-10 and 8-14 day outlooks from the CPC continue to favor above average temperatures for much of the central CONUS.
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.AVIATION /00Z TAFS THROUGH 00Z SUNDAY/... Issued at 605 PM CDT Fri Sep 26 2025
VFR conditions will prevail through the forecast period, with only a few passing clouds at FL200-250. A cool front stretching from central SD to western NE as of 23z will continue southeast tonight, reaching KOFK by 27/10z, and closer to 13-14z at KLNK and KOMA. Winds are expected to increase to 12-14 kt from the north by 15-16z behind the front.
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.OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None.
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DISCUSSION...Wood AVIATION...Mead
NWS OAX Office Area Forecast Discussion