textproduct: NWS Birmingham

KEY MESSAGES

Issued at 631 AM CDT SAT AUG 8 2026

- Heat: Humidity will push heat indices into the 97-104 degree range this weekend into next week, resulting in a moderate heat risk across Central Alabama.

DISCUSSION

(Saturday through next Friday) Issued at 1142 PM CDT FRI AUG 7 2026

Central Alabama remains in a somewhat weak upper flow area south of the main broad trough that extends out of Central Canada and down into the Great Lakes. At the same time, Alabama is situated between two ridges, one across the Four Corners and the other in the Western Atlantic off of the FL Coast. The difference from yesterday is that guidance is now showing a small developing shortwave moving in from the northwest. While this will not make a huge difference, it should orient our highest rain chances to the northwest/north areas for Sat/Sun. Our emphasis will still be typical summertime diurnally enhanced convection overall. By Monday, the Western Atlantic ridge flattens and retrogrades further westward across the Northern Gulf Coast. At the same time, it also shows the upper shortwave absorbed back into the longwave trough with just continued summertime diurnally enhanced activity expected through the remainder of the week.

As for temperatures, readings vary only a degree or so here and there over the next week with overall moisture remaining up. This will result in max afternoon heat indices perhaps a couple of degrees higher in spots. However, guidance continues to keep us below heat advisory criteria for now.

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AVIATION

(12Z TAFS) Issued at 631 AM CDT SAT AUG 8 2026

Isolated MVFR fog is occurring this morning, with the highest probability at EET through 13Z. With weak ridging to our east, winds will be east-southeast 4-7 knots around it with mixing during the day. More diurnal convection is expected by the afternoon. The best chances will be across the northern half of the area, so I have continued with PROB30 at TCL, BHM, and EET to account for this. Convective activity is expected to dissipate between 01Z and 02Z.

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

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FIRE WEATHER

Warm and humid conditions will help keep MinRH values generally above 50% through the week. Isolated to scattered showers and storms are expected daily. Because of this, elevated fire weather concerns will remain low over the next seven days.

PRELIMINARY POINT TEMPS/POPS

Gadsden 91 71 92 73 / 40 20 50 30 Anniston 91 71 91 73 / 30 20 40 20 Birmingham 91 73 91 74 / 30 20 50 20 Tuscaloosa 92 73 92 74 / 40 20 50 20 Calera 92 73 92 73 / 30 20 40 10 Auburn 89 73 88 74 / 30 20 40 10 Montgomery 93 74 93 74 / 30 20 40 10 Troy 93 73 92 72 / 20 20 50 10

BMX WATCHES/WARNINGS/ADVISORIES

None.