textproduct: Norman

KEY MESSAGES

Updated at 211 AM CDT Fri Jul 31 2026

- Extreme heat warning is in effect today for heat index values up to 114 degrees.

- Strong to severe thunderstorms are possible this afternoon and evening with damaging wind gusts possible.

- Excessive heat returns next week after a brief reprieve over the weekend.

NEAR TERM

(Through Friday) Issued at 254 AM CDT Fri Jul 31 2026

Isolated showers and a few storms remain possible this morning but are expected to dissipate by late morning.

Dangerously hot and humid conditions are expected today. An Extreme Heat Warning has been issued with heat index values up to 114 expected for a large portion of the CWA, with a Heat Advisory elsewhere. In addition, severe storms, capable of producing damaging wind gusts of 65 to 70 mph, are possible for areas generally near and south of the I-40 corridor by late afternoon and into the evening.

A cold front, which extends across southeastern Nebraska and northwest Kansas, is expected to arrive in northwest Oklahoma this morning (within a few hours after dawn). Guidance indicates the front reaches central Oklahoma's door by early to mid- afternoon and pushes south of our CWA tonight. Conditions will be hot and humid in the "warm sector" with air temperatures rising to 105 degrees (perhaps as high as 110 degrees immediately ahead of the boundary).

Despite the wind shift to the NNW after FROPA, the triple digit temperatures will coincide with a rise in dewpoint temperatures following FROPA and this will lead to dangerously hot heat indices of 110 to 115 degrees for parts of central Oklahoma. Similar heat indices are expected into southern, and so the extreme heat warning extends there, as well.

Scattered thunderstorms are anticipated to develop along the front by late afternoon or early evening. CI is prog'd to occur near or just south of the I-40 corridor, where inverted-V soundings with steep low-level lapse rates (~10 deg C/km) and 40 degree temperature dew point temperature spreads could lead to severe wind gusts of 65 to 70 mph. Activity is anticipated to wane and decrease in intensity by late evening.

Thompson

SHORT TERM

(Friday night through Sunday night) Issued at 254 AM CDT Fri Jul 31 2026

Following the frontal passage on Saturday, breezy northerly winds and less hot temperatures are expected. High temperatures will range from the low 90's (north and central Oklahoma) to the upper 90's (southwest Oklahoma and north Texas). Winds will become light on Sunday with similar temperatures expected.

Thompson

LONG TERM

(Monday through Thursday) Issued at 254 AM CDT Fri Jul 31 2026

Excessive heat returns next week as the upper ridge advances from the west. Rain chances are not zero, but probabilities are low through Thursday.

Thompson

AVIATION

(06Z TAFS) Issued at 1037 PM CDT Thu Jul 30 2026

Some showers and storms across the panhandles will move east overnight and weaken, but may impact WWR over the next few hours and may then impact PNC/SWO toward morning. Otherwise, light south to southeast winds overnight which will veer to the southwest and then eventually to the north as a cool front translates south across Oklahoma and into north Texas Friday into Friday evening. There is a chance of showers across central sections by late afternoon, but questions in occurrence and location remain in question. Better chances are farther south across southern Oklahoma and north Texas tomorrow evening and have introduced a PROB30 at LAW/SPS after 00Z

PRELIMINARY POINT TEMPS/POPS

Oklahoma City OK 103 73 93 69 / 20 20 0 0 Hobart OK 104 72 97 67 / 20 20 0 0 Wichita Falls TX 105 76 99 70 / 20 30 0 0 Gage OK 98 68 94 65 / 10 0 0 0 Ponca City OK 99 71 91 67 / 20 0 0 0 Durant OK 103 76 96 70 / 10 30 0 0

OUN WATCHES/WARNINGS/ADVISORIES

OK...Heat Advisory from noon today to 9 PM CDT this evening for OKZ005-006-014>016-021-033-034.

Extreme Heat Warning from noon today to 9 PM CDT this evening for OKZ007-008-011>013-017>020-022>032-035>048-050>052.

TX...Heat Advisory from noon today to 9 PM CDT this evening for TXZ083>090.