textproduct: Norman

KEY MESSAGES

Updated at 1055 AM CDT Sun Sep 27 2026

- Widespread beneficial rainfall expected beginning Tuesday through the end of next week.

- Temperatures will remain above normal through early next week, before cooling down mid-week.

NEAR TERM

(Through Sunday) Issued at 126 AM CDT Sun Sep 27 2026

Shortwave trough will continue to slowly move east and southeast across the area early this morning into the day Sunday. Meanwhile, height rises occur on the back side of this trough as shortwave ridging builds through the High Plains out into the Plains today.

As this occurs, precip and precip chances will slowly shift east as well today and after the early morning storms, expect much of the daytime activity to be confined across southeast parts of the area. Although an isolated storm into the I-35 corridor and across north Texas can not be ruled out.

In addition, the building ridge will mean another hot day across much of the area as above normal temperatures continue, ranging from the mid/upper 80s north, low to middle 90s in central sections and upper 90s to near 100 degrees again in the south into north Texas.

SHORT TERM

(Sunday night through Tuesday night) Issued at 126 AM CDT Sun Sep 27 2026

There will continue to be shower/storm chances Monday across mainly southeast Oklahoma, but an isolated storm will be possible back toward the I-35 corridor. Otherwise, dry and warm to hot afternoon temperatures, mid 80s north to upper 90s south.

As we move through the day Tuesday the shortwave ridge shifts east and south as large western trough develops a closed low and begins to shift slowly eastward. Out ahead of the low, a sub-tropical jet will bring increasing moisture northward across the Baja and into New Mexico and across the High Plains into the Southern and Central Plain states.

The abundant moisture and several embedded waves within this zone ahead of the upper low will result in showers and storms becoming more widespread to our west and then into western parts of the area during the day Tuesday. Precip chances then ramp up across the entire area Tuesday night.

LONG TERM

(Wednesday through Saturday) Issued at 126 AM CDT Sun Sep 27 2026

Models are in descent agreement as we go through the middle and latter part of the week into the weekend with regards to the closed low making a slow eastward progression. Along with already present plume of moisture, the remnants of Hurricane Polo will get pulled into the system as well, increasing the potential for heavy and flooding rainfall across the area as we go through the week.

To go along with the rainfall and associated cloud cover, temperatures will cool by the latter part of the week with highs in the 70s and low/mid 80s from Thursday into the weekend.

AVIATION

(18Z TAFS) Issued at 1055 AM CDT Sun Sep 27 2026

VFR conditions are expected, outside of the low chance for showers and thunderstorms this evening into the overnight hours across central and southern Oklahoma. Any thunderstorm that moves through a terminal could have reduced visibilities and ceilings. Otherwise, a surface low across the southwestern parts of Oklahoma will keep the winds out of the east-northeast for most of us.

PRELIMINARY POINT TEMPS/POPS

Oklahoma City OK 69 90 71 90 / 10 20 0 30 Hobart OK 67 92 71 89 / 0 0 10 50 Wichita Falls TX 69 97 72 96 / 10 10 0 10 Gage OK 62 85 65 80 / 10 10 20 80 Ponca City OK 64 83 66 83 / 10 10 10 60 Durant OK 69 94 71 96 / 30 30 0 0

OUN WATCHES/WARNINGS/ADVISORIES

OK...None. TX...None.