textproduct: Norman

KEY MESSAGES

Updated at 1201 PM CDT Tue Aug 25 2026

- Excessive heat continues tomorrow, with less hot conditions towards the midweek.

- Strong to severe storms are possible Tuesday night into Wednesday morning across northwest Oklahoma.

NEAR TERM

(Through Tuesday) Issued at 136 AM CDT Tue Aug 25 2026

A few lingering showers across the southeast this morning, otherwise mainly dry conditions expected through much of the day. There is a shortwave trough that will move across Kansas, but currently it appears that any precip associated with this feature will remain to our north across Kansas.

Elsewhere, the weak frontal boundary located near the I-44 corridor may move slightly farther south today with only minimal impacts to temperatures across the north. To the south of the boundary another very hot day with near record heat is expected. Still some uncertainty with regards to how far north to go with heat headlines, but will at least extend the Heat Advisory northward to near the I- 40 corridor and upgrade parts of southwest Oklahoma and portions of western north Texas to Extreme Heat Warning.

With the heat and low afternoon humidity, there will be some areas of elevated fire weather conditions across the south today. Lighter wind speeds should keep things in check a bit more than yesterday. Will go with a Fire Danger Statement for portions of this area for today.

SHORT TERM

(Tuesday night through Thursday night) Issued at 136 AM CDT Tue Aug 25 2026

Attention turns to our west this evening as a complex of storms is expected to develop across the High Plains this afternoon and then move eastward into northwest and western Oklahoma this evening. There will be a risk of severe weather with this complex mainly in the form of damaging wind gusts. This complex is expected to weaken as it moves east and southeast into the the state Tuesday night, with only very low chances of anything making it into the I-44 corridor overnight.

As the shortwave moves through the area on Wednesday, a reinforcing cold front will surge south and bring in a slightly "cooler" airmass. This will result in temperatures across at least the northern half of Oklahoma topping out in the low to middle 90s Wednesday afternoon with some low 100s across the south and into north Texas.

The front could be a focus for additional thunderstorm development Wednesday afternoon. Location of the front by afternoon will be key, but south-central and southeast Oklahoma will have the best opportunity of seeing any of this activity.

Another shortwave will drop south across the High Plains into west Texas Wednesday night. As this occurs another complex of storms will move south with it. This may reach as far east as western Oklahoma. Otherwise, the remainder of the area Wednesday night and Thursday will be dry, but a little cooler, as temperatures remain in the 90s across much of the area Thursday afternoon.

LONG TERM

(Friday through Monday) Issued at 136 AM CDT Tue Aug 25 2026

By Friday, the upper ridge begins to expand back eastward. As this occurs, a stronger shortwave will move through the central Rockies into the central and northern Plains and south winds return. As this occurs we will see temperatures respond back into the triple digits by the weekend with hot, dry and breezy conditions. The models do hint that this eastward expansion will be rather limited as the upper high continues to transition eastward and becomes centered over the southeast part of the CONUS. If this does in fact occur, it would put the southern Plains into a southwest flow pattern and perhaps bring additional rain chances as we go into early September. Until then, a continuation of hot and mainly dry conditions will continue.

AVIATION

(18Z TAFS) Issued at 1201 PM CDT Tue Aug 25 2026

Wind shifts will be the main forecast challenge for aviation as a front gradually shifts southward. Near the front winds will be variable in direction followed by light with north winds to the north of it. Storm chances increase across the west this evening. Some of these could impact CSM/WWR this evening with mainly a risk of gusty and erratic winds. There will be a chance for this activity to spread further east overnight, but chances remain too low to include elsewhere at this time.

Day

PRELIMINARY POINT TEMPS/POPS

Oklahoma City OK 74 95 72 93 / 20 20 10 10 Hobart OK 74 98 71 95 / 30 20 10 20 Wichita Falls TX 77 101 73 98 / 10 20 10 10 Gage OK 67 92 64 91 / 50 30 40 30 Ponca City OK 72 93 69 91 / 30 20 10 10 Durant OK 77 102 74 99 / 10 20 10 10

OUN WATCHES/WARNINGS/ADVISORIES

OK...Heat Advisory until 7 PM CDT this evening for OKZ021>023-027>035- 038>043-046>048-050>052.

Extreme Heat Warning until 7 PM CDT this evening for OKZ036-037- 044-045.

TX...Heat Advisory until 7 PM CDT this evening for TXZ083-084-087>089.

Extreme Heat Warning until 7 PM CDT this evening for TXZ085-086- 090.