textproduct: NWS Birmingham

KEY MESSAGES

Issued at 141 PM CDT FRI SEP 4 2026

- Significant Heat Risk: Heat indices will remain between 105-108 degrees through the weekend. The Heat Advisory is now in effect until 8 PM Sunday.

DISCUSSION

(This afternoon through Thursday) Issued at 141 PM CDT FRI SEP 4 2026

Getting more and more difficult in finding different ways to say "It's hot, and more hot than typical." Upper level ridge will oscillate from east to west to east again over the next 7 days. High temperatures are forecast to remain in the 95 to 100 degree range during this time frame, with afternoon heat indices exceeding 105. Rain chances will edge up over the weekend, as the ridge initially slides westward. But as the ridge becomes re- established in the east, convective rain chances will become suppressed once again.

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AVIATION

(18Z TAFS) Issued at 1240 PM CDT FRI SEP 4 2026

Will keep conditions in the VFR category through this evening across all central Alabama TAF locations. A bit more cloud coverage and better rain chances at MGM and AUO. After midnight, the forecast becomes less certain. Computer model output from this morning indicates some chance of stratus development in many/most areas late tonight. Some models are more definitive than others, with a pretty solid stratus deck developing below 1000 ft. Others are not as pessimistic, with just some light BR and only a brief (at most) period of BKN clouds. Decided to split the difference, and go with a more defined stratus development, but not quite as low of a ceiling. Highest confidence of IFR conditions is AUO, lowest confidence at BHM.

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FIRE WEATHER

Minimum RH values will generally remain above 40% through the work week. Low (10 to 20%) chances for showers and storms will continue daily. Fire weather concerns are currently low, but decreasing soil moisture will begin to raise these concerns by next week given a lack of forecast rainfall.

PRELIMINARY POINT TEMPS/POPS

Gadsden 74 98 74 99 / 0 20 20 10 Anniston 72 96 72 97 / 0 20 20 10 Birmingham 75 97 75 98 / 0 20 20 10 Tuscaloosa 75 99 75 100 / 0 20 10 10 Calera 74 96 74 97 / 0 20 10 20 Auburn 74 93 74 94 / 0 20 10 30 Montgomery 74 95 74 97 / 10 30 10 30 Troy 72 93 72 95 / 10 50 10 40

BMX WATCHES/WARNINGS/ADVISORIES

Heat Advisory until 8 PM CDT Sunday for the following counties: Autauga-Barbour-Bibb-Blount-Bullock-Calhoun-Chambers-Cherokee- Chilton-Clay-Cleburne-Coosa-Dallas-Elmore-Etowah-Fayette-Greene- Hale-Jefferson-Lamar-Lee-Lowndes-Macon-Marengo-Marion-Montgomery- Perry-Pickens-Pike-Randolph-Russell-Shelby-St. Clair-Sumter- Talladega-Tallapoosa-Tuscaloosa-Walker-Winston.