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KEY MESSAGES

Updated at 1251 AM CST Fri Dec 5 2025

- Potential for freezing fog across portions of western/northern Oklahoma early this morning, which could lead to reduced visibility and slick spots, especially along elevated roadways.

- Areas of fog and/or freezing fog with reduced visibility is possible again tonight into Saturday morning, mainly along and east of the I-35 north and I-44 south corridor.

- Cooler day on Sunday behind a front before generally seasonable and dry conditions heading into next week.

NEAR TERM

(Through Friday) Issued at 1251 AM CST Fri Dec 5 2025

Current observations as of Midnight show some patchy low clouds and mist (3-5 mile visibility) developing across localized areas of Oklahoma and western north Texas. Patchy freezing fog remains possible through the early morning hours today with increasing surface moisture and light winds. However, there is not a strong signal for areas of persistent fog and any fog development may be localized. The latest HREF has a medium-to-high (40-70%) chance for visibility less than 0.5 miles across portions of southern and western Oklahoma in the next few hours. The fog may advect northward through the morning hours with lower chances (30-50%) for reduced visibility less than 0.5 miles. Patchy dense fog development may develop this morning and be localized to areas roughly the size of a county or less at times. The aforementioned HREF probabilities help to try and capture the localized nature of the fog by using a 25km neighborhood radius. With sub-freezing temperatures spread across much of Oklahoma and into portions of western north Texas this morning, any fog that develops is likely to be freezing fog. Therefore, any minor accretion could cause slick areas, especially on elevated roadways such as bridges/overpasses.

As the sun rises this morning and temperatures warm, any fog will clear. A weak trough will bring a brief shift of winds to the north today, but overall temperatures are expected to return to normal and be nearly 10-15 degrees warmer than yesterday. Expect mostly sunny skies today before some high clouds move in from the north later this afternoon/evening.

SHORT TERM

(Friday night through Sunday night) Issued at 1251 AM CST Fri Dec 5 2025

Another round of fog is possible tonight, with higher confidence of occurrence and location. The greatest chances for patchy to areas of fog will be roughly eastward from a line along I-35 north and I-44 south. There is medium-to-high confidence (50-80%) fog development based on HREF probabilities of 0.5 mile visibility or less. With borderline freezing temperatures into Saturday morning, some freezing fog may develop. Overall, fog development would likely begin a few hours after midnight and continue through most of the morning. There is a signal for low clouds and fog to continue into the afternoon hours across portions of central and southeast Oklahoma, which could alter high temperatures for the day.

Breezy winds may develop Saturday morning across western Oklahoma and adjacent portions of western north Texas with a strengthening surface low in the Plains. The embedded shortwave aloft will push the low southeastward and bring a front through the area Saturday night.

LONG TERM

(Monday through Thursday) Issued at 1251 AM CST Fri Dec 5 2025

By Sunday the surface high will sink into the Southern Plains and bring a shot of cooler air into Oklahoma and north Texas. The remainder of next week will feature northwesterly flow aloft with several embedded shortwaves and a few fronts. No precipitation is expected in the extended and overall temperatures will remain fairly mild with most of the fronts with a potential for temperatures to return to near or above-normal through much of midweek. There is a stronger front on the horizon towards the end of the week, which could bring another batch of cold wintry air.

AVIATION

(06Z TAFS) Issued at 1029 PM CST Thu Dec 4 2025

MVFR ceilings will linger for a few more hours across the south and may develop into central Oklahoma over the next two to three hours so have included at least a tempo for the possibility. Continue to see some signal for fog development in western Oklahoma impacting CSM later tonight. It could be dense for a short time. Otherwise light winds tonight and tomorrow. A weak front will enter northwest Oklahoma by midday and work south toward the I-44 corridor.

PRELIMINARY POINT TEMPS/POPS

Oklahoma City OK 50 31 53 33 / 0 0 0 0 Hobart OK 52 27 57 32 / 0 0 0 0 Wichita Falls TX 59 34 60 37 / 0 0 0 0 Gage OK 50 24 57 28 / 0 0 0 0 Ponca City OK 50 29 54 30 / 0 0 0 0 Durant OK 52 35 56 40 / 0 0 0 0

OUN WATCHES/WARNINGS/ADVISORIES

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