674 FXUS64 KOUN 140256 AFDOUNArea Forecast Discussion National Weather Service Norman OK 956 PM CDT Sat Sep 13 2025
...New AVIATION...
.KEY MESSAGES... Updated at 947 PM CDT Sat Sep 13 2025
- Hot/above-normal temperatures continue into next week.
- Scattered rain and a few thunderstorms are possible on Sunday (west) with a marginal risk of severe hail/wind late Sunday (northwest)
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.NEAR TERM... (Rest of today and tonight) Issued at 136 PM CDT Sat Sep 13 2025
Southwest flow ahead of a broad upper trough, currently spinning over southern Utah, will continue to feed Pacific moisture and increasing mid-/high- level clouds across the FA area. Temperatures have warmed quickly thus far today with gusty S/SSW winds, and highs will be mostly in the 90`s. This trough will reach the central Rockies late tonight.
As the trough moves towards the central Rockies, mid-level moisture advection could reach and destabilize a small portion of northwest Oklahoma by evening. However, given the large discrepancy in models, rain/storm chances are less than 20 percent through midnight. A zone of increasing shower development looks probable across western Oklahoma into western north Texas between midnight and dawn. No severe weather is expected.
Thompson
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.SHORT TERM... (Sunday through Monday night) Issued at 136 PM CDT Sat Sep 13 2025
As deep isentropic lift shifts across the area tomorrow, will see mostly cloudy skies for much of the area, with clearing skies over northwest Oklahoma by mid-day. Scattered showers and a few storms will progress slowly across western Oklahoma and western north Texas tomorrow morning, with at least isolated activity reaching north-central portions of Oklahoma by early afternoon.
With moderate to strong instability and moderately-sheared environment, there is a chance of strong to severe thunderstorm development over northwest/western Oklahoma. Large hail and gusty winds are the main hazards. Temperature-wise, highs will be slightly lower than those observed today. POPs fall below 20 percent late Sunday night.
On Monday, the departing trough will lead to mid-level height rises, scattered clouds, and rebounding temperatures.
Thompson
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.LONG TERM... (Tuesday through Friday) Issued at 1245 AM CDT Sat Sep 13 2025
Early signs point to continued "warm" (by mid-September standards) and mainly dry weather next week. The upper air pattern across the CONUS remains somewhat muddled in grand ensemble guidance, with potential for an upper trough to migrate across the Northern Plains during the period. Low chances for rain/storms are currently advertised on Wednesday into early Thursday across northern portions of Oklahoma, in response to a trailing surface front from this feature. Otherwise, temperatures will likely remain in the 80s to low-90s, running +5-10 degrees compared to seasonal average.
Ungar
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.AVIATION... (00Z TAFS) Issued at 947 PM CDT Sat Sep 13 2025
VFR conditions are expected through the period, with scattered high to mid clouds expected to continue into tomorrow. Shower chances will increase late tonight into tomorrow morning across western Oklahoma with a few thunderstorms possible tomorrow afternoon and evening. Winds will be from the south or southeast tonight through tomorrow, becoming a bit gustier by tomorrow late morning.
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.PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 90 71 88 70 / 0 0 10 20 Hobart OK 93 70 89 67 / 0 10 30 20 Wichita Falls TX 93 72 92 70 / 0 0 10 10 Gage OK 89 66 84 62 / 10 40 50 20 Ponca City OK 93 70 89 68 / 0 0 10 20 Durant OK 92 70 92 70 / 10 0 0 0
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.OUN WATCHES/WARNINGS/ADVISORIES... OK...None. TX...None. &&
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NEAR TERM...01 SHORT TERM...01 LONG TERM....09 AVIATION...08
NWS OUN Office Area Forecast Discussion