textproduct: Norman

KEY MESSAGES

Updated at 523 AM CST Fri Dec 12 2025

- Temperatures plunge into the 30s on Sunday; otherwise near or above-normal conditions for much of the next week.

- No chance for precipitation through at least Monday.

NEAR TERM

(Through Friday) Issued at 1215 AM CST Fri Dec 12 2025

Sensible conditions today will feature another "dip" in temperatures and gusty northerly winds (especially this morning). A weak surface front, currently passing the I-70 corridor in central Kansas, continues dive southward early this morning. While cooler than Thursday, a rather muted airmass response/change associated with the front, along with mostly clear skies, will allow temperatures to remain at or above average for most locations (near 50 degrees north to low-60s south). The immediate post- front looks to feature a notable (northerly) low-level jet during the morning/midday. As boundary layer mixing begins, periods of northerly wind gusts up to 30-35 mph are expected along and south of the Interstate 40 corridor.

Ungar

SHORT TERM

(Friday night through Sunday night) Issued at 1215 AM CST Fri Dec 12 2025

Conditions heading into Saturday morning will be rather benign, with early morning lows in the upper-20s north to near the freezing mark across the Red River Valley. A secondary, much stronger, frontal intrusion looks to occur throughout the daytime hours on Saturday. As a result, the high temperature forecast on Saturday is somewhat uncertain, with a 10+ degree spread in plausibly coolest and warmest conditions during the afternoon. Will opt to maintain a more "middle of the road" forecast for now, though temperatures may ultimately run several degrees warmer across western and southern portions of the area than currently advertised.

The front will push southward into north-central Texas by Saturday evening, as a 1040+ mb Canadian high continues to dive southward across the Plains. Combined with a breezy north/northeasterly wind, single-digit wind chills are expected on Sunday morning across the northern two-thirds of Oklahoma. Sunday will be the coldest day in some time, with temperatures remaining at or just below freezing across northern Oklahoma.

Ungar

LONG TERM

(Monday through Thursday) Issued at 1215 AM CST Fri Dec 12 2025

The cold spell looks to be short-lived, with temperatures returning to a near or above-normal state by Monday. Outside of a more amplified upstream upper ridge, most global and ensemble guidance captures a compact southern stream wave moving across the region on Tuesday. While another frontal passage is possible with this system, sensible impact appears limited (or nil), with near to above-normal temperatures and mostly dry surface weather continuing throughout much of next week.

Ungar

AVIATION

(12Z TAFS) Issued at 523 AM CST Fri Dec 12 2025

All of our terminals should remain in a VFR category through the entire forecast period. A cold front is currently stretched across northern & western Oklahoma producing a north surface wind shift behind the front around 10-15 kts. Expecting the front/wind-shift increasing across our terminals in central & southwest Oklahoma in the next two hours between 13-14Z and through terminal KSPS by 15Z and KDUA by 16Z. Also between 15-16Z vertical mixing will start producing wind gusts around 20-25 kts with gusts decreasing a bit by 21-22Z. The north-northeast surface winds will decrease to 5-10 kts after 00Z then go light & variable by 06Z across most of our terminals.

PRELIMINARY POINT TEMPS/POPS

Oklahoma City OK 53 31 57 20 / 0 0 0 0 Hobart OK 58 29 60 20 / 0 0 0 0 Wichita Falls TX 63 33 63 25 / 0 0 0 0 Gage OK 54 29 60 15 / 0 0 0 0 Ponca City OK 50 28 51 16 / 0 0 0 0 Durant OK 63 36 62 26 / 0 0 0 0

OUN WATCHES/WARNINGS/ADVISORIES

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