Area Forecast Discussion
Issued by NWS Birmingham, AL
Issued by NWS Birmingham, AL
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105 FXUS64 KBMX 241851 AFDBMX Area Forecast Discussion National Weather Service Birmingham AL 1251 PM CST Mon Nov 24 2025 ...New DISCUSSION... .KEY MESSAGES... Updated at 1250 PM CST MON NOV 24 2025 - Periods of showers and thunderstorms are expected late tonight through Tuesday. There is a level 2 out of 5 risk for severe thunderstorms with hazards including gusty winds, hail, and perhaps a brief tornado. - Clear and colder conditions are forecast for Thanksgiving Day. - Rain chances return Sunday and may persist for a couple of days. && .DISCUSSION... (This evening through next Sunday) Issued at 1250 PM CST MON NOV 24 2025 The leading edge of the shortwave is moving through northwestern MS right now and will slowly work toward western Alabama this evening. We could see some light rain in the northwest as early as 5 to 6 pm, but it is going to take quite a bit to overcome the dry air in place right now. Better rain chances after 9 pm in the northwest. Overall not much in a change in the thought process of the development for the event. SPC has increased the area to a slight (level 2 out of 5) chance of severe weather. Still looks like a 2 wave set up with a pre-dawn event moving northeast through the area and exiting the northwest by early morning. The second wave will develop near the I-20 corridor late morning/early afternoon. Amount of convection really will depend on the amount of clouds and what instability can be realized during the afternoon. 16 Previous discussion: (Through next Sunday) Issued at 205 AM CST MON NOV 24 2025 Tuesday`s rainy and stormy weather: A shortwave trough located to our west as of early this morning is forecast to quickly scoot by tonight and be in the vicinity of the Ohio Valley to Mid-Atlantic region on Tuesday as it becomes increasingly ill-defined. This will leave us without much in the way of upper-level support/forcing as showers and thunderstorms affect central Alabama late tonight through Tuesday; however, with broad southwesterly jet stream flow arriving and persisting, sheared wind profiles will be in place with weak to moderate instability developing during the daytime hours on Tuesday. This setup could produce a couple severe thunderstorms. Ongoing showers and thunderstorms to our west today are projected to arrive to northwest Alabama as early as around midnight and continue their eastward progression during the overnight hours. While forecast soundings show a nicely sheared wind profile and strengthening low-level jet, surface-based instability is shown to be nil with weak instability aloft. So, much of this activity will be characterized by downpours and rumbles of thunder. Considering the upper trough will be at its most conducive proximity at any point during this event, a low severe risk could occur along the southern fringe of the activity if sufficient surface-based instability along the northward-advancing warm front makes it in time. Should this occur, gusty winds, hail, and a brief tornado are the potential hazards. This low likelihood scenario seems to favor counties in the vicinity of Demopolis. Through Tuesday, we are expected to transition to a speed shear setup as surface and low-level flow veers. The low-level jet is also shown to weaken a bit through the day. While ensemble data show weak to moderate instability developing, the lack of appreciable upper-level support, and relatively weak frontal forcing, will temper the severe threat associated with the multiple bands of showers and thunderstorms. Even so, it is plausible that a couple severe thunderstorms could manifest given other environmental parameters (shear, instability). Gusty winds and hail are the primary hazards, with a lesser potential for a brief tornado due to the degradation of the low-level flow. All of this activity should be out of here by early Wednesday morning. Late week into the weekend: High pressure begins to build into the region on Wednesday and will be in control Thursday and Friday. Dry weather is forecast along with cold mornings and cool afternoons. Thanksgiving Day is looking nice! High pressure shifts to the east on Saturday with our next trough on its approach to the region. The evolution of a broad troughing pattern with a series of impulses could result in a few days worth of shower and thunderstorm chances starting on Sunday. 89^GSatterwhite && .AVIATION... (18Z TAFS) Issued at 1120 AM CST MON NOV 24 2025 VFR conditions through tonight, with showers entering the western TAF sites between 6 and 9z. Along with the showers, MVFR/IFR clouds to return. TCL/EET/BHM will see thunderstorms possible between 10z and 15z, so included PROB30 through 18z. Winds will increase during the morning as well on Tuesday. Additional storms will occur after 18z Tuesday and that will be added with the next set of TAFs. 16 && .FIRE WEATHER... Widespread showers and thunderstorms are expected to affect central Alabama overnight Monday through Tuesday. This activity will vacate the region by early Wednesday morning with rain-free weather forecast from the remainder of Wednesday through Saturday. Additional rain chances return starting Sunday of next week. There are no concerns with MinRHs through Wednesday. A drier air mass will be in place Thursday through Saturday with afternoon MinRHs reaching the 30s for much, if not all, of central Alabama. Locations near and south of the 80 corridor of south-central Alabama may slip into the 20s during that stretch. Winds will be near 10 mph with the potential for gusts around 20 mph from the south on Tuesday and from the northwest on Wednesday. && .CLIMATE... Issued at 205 AM CST MON NOV 24 2025 Record High Temperatures: November 24: KEET: 76/2016 KANB: 77/2016 KTCL: 79/1950 && .PRELIMINARY POINT TEMPS/POPS... Gadsden 56 73 52 63 / 60 90 70 10 Anniston 59 73 55 63 / 50 80 90 10 Birmingham 60 73 54 62 / 60 90 70 0 Tuscaloosa 58 75 52 63 / 60 90 50 0 Calera 58 75 52 65 / 50 90 80 0 Auburn 61 76 60 68 / 30 60 90 10 Montgomery 60 79 58 68 / 30 60 90 10 Troy 61 79 58 70 / 20 40 90 10 && .BMX WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...16 AVIATION...16