textproduct: NWS Birmingham

KEY MESSAGES

Issued at 1246 AM CDT TUE JUL 28 2026

- Heat: A major heat risk is expected today across Central Alabama, with maximum afternoon heat indices from 105 to 109 degrees.

- Severe Weather: There is a 1 out of 5 risk for severe thunderstorms across the far northeastern portions of Central Alabama this Tuesday evening and again on Wednesday afternoon and evening across the southeast counties. The main threat will be damaging straight-line winds.

DISCUSSION

(Tuesday through next Monday) Issued at 1038 PM CDT MON JUL 27 2026

Water vapor imagery this evening reveals a strengthening upper level ridge across the Four Corners region and an upper trough pushing through the Great Lakes region. Several shortwaves will rotate around the periphery of the high, which will keep low to medium chances for showers and storms in the forecast. Tuesday's activity looks to remain east of the region as the ridge shifts slightly east across the Southern Plains. By mid-week, the ridge begins to retreat south and west as the trough along the East Coast deepens and pushes a front through the region. This will allow the aforementioned shortwaves to inch closer to the region, bringing better chances for showers and storms, generally to the south of the front, through Thursday. Another upper trough cuts across the Plains into the Ohio Valley over the weekend. This will send a front our way, leading to increased rain chances over the weekend.

The main story over the next couple of days will be our increasing heat risk. Temps in the upper 90s along with muggy conditions will warrant a major heat risk across most of the region Tuesday with heat indices approaching 110 degrees. The latest ECMWF EFI hints at an unusually warm day tomorrow, especially across the southern half of the CWA. Highs tomorrow will be about 10 degrees warmer than usual for this time of the year. As a result, the Heat Advisory remains in effect through Tuesday evening. We will knock off a couple of degrees by mid week as the ridge retreats back west. High temps look to settle into the upper 80s to low 90s by Friday.

95/Castillo

AVIATION

(06Z TAFS) Issued at 1246 AM CDT TUE JUL 28 2026

VFR conditions are currently noted across Central Alabama TAF sites. Patchy MVFR fog may occur as the night progresses due to moist conditions after recent rains. VSBYs should improve to VFR by 13-14z with mixing. Otherwise VFR conditions are expected with WNW winds during the day 5-10kts.

Note: AMD NOT SKED for KAUO due to a weather observation outage.

08

FIRE WEATHER

A warm and humid air mass will help fire weather concerns in check for the week. MinRH values are expected to remain above 50 percent through Wednesday. Some drier air begins to work in from the east on Thursday and Friday with RHs dropping to around 40%. However, winds will be light enough to negate any fire weather concerns.

PRELIMINARY POINT TEMPS/POPS

Gadsden 96 75 91 67 / 0 10 30 0 Anniston 95 75 90 68 / 0 10 30 0 Birmingham 98 77 92 70 / 0 10 30 0 Tuscaloosa 99 78 94 73 / 0 0 40 10 Calera 100 77 95 71 / 0 0 30 10 Auburn 95 78 92 73 / 0 0 30 10 Montgomery 99 78 96 73 / 0 0 30 20 Troy 97 77 96 72 / 0 0 30 30

BMX WATCHES/WARNINGS/ADVISORIES

Heat Advisory until 9 PM CDT this evening for the following counties: Autauga-Bibb-Blount-Chilton-Dallas-Elmore-Fayette- Greene-Hale-Jefferson-Lamar-Lowndes-Marengo-Marion-Montgomery- Perry-Pickens-Shelby-Sumter-Tuscaloosa-Walker-Winston.

Heat Advisory from 10 AM this morning to 9 PM CDT this evening for the following counties: Barbour-Bullock-Calhoun-Chambers- Cherokee-Clay-Cleburne-Coosa-Etowah-Lee-Macon-Pike-Randolph- Russell-St. Clair-Talladega-Tallapoosa.