


Area Forecast Discussion
Issued by NWS Birmingham, AL
Issued by NWS Birmingham, AL
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308 FXUS64 KBMX 010026 AFDBMX Area Forecast Discussion National Weather Service Birmingham AL 726 PM CDT Mon Jun 30 2025 ...New AVIATION... .SHORT TERM... (This evening through Tuesday) Issued at 1200 PM CDT MON JUN 30 2025 Widespread coverage of showers and thunderstorms is expected over the next couple afternoons, with activity lingering through the evening hours. A thick low-level stratus deck has kept much of Central Alabama socked in this morning, but that is slowly starting to dissipated with daytime heating. CAMs develop afternoon convection across much of the area after 19z, with the activity slowly drifting southeastward. Similar to yesterday, high PWAT values in the neighborhood of 2 inches will contribute to locally heavy downpours and minor flooding potential, aided by generally slow and erratic storm motions. Downburst potential appears to be minimal again, with a fairly moist 12z sounding with low dewpoint depression up into the upper levels. Still, gusty winds of 30-40 mph associated with any thunderstorms could result in potential for minor wind damage. A front will work into the area by Tuesday evening, with additional shower and thunderstorm activity expected during the afternoon and evening. Cells and cell clusters should quickly form and begin to overspread much of the area around or shortly after midday, moving toward the south or southeast throughout the afternoon. Better synoptic forcing may increase the risk for damaging winds across the area with cells growing upscale into line segments. It appears the highest storm chances and better potential for wind will be southeast of the I-59/20 corridor tomorrow. Forecast soundings continue to indicate PWAT values up to 2.1 inches, so torrential downpours and flooding issues are possible once again on Tuesday. 12 && .LONG TERM... (Tuesday night through next Sunday) Issued at 1200 PM CDT MON JUN 30 2025 Lower humidity values and much lower rain chances mid to late week will allow high temperatures to rebound into the low to mid 90s. Few changes were made to the extended based on the newest round of model guidance. 12 Previous long-term discussion: (Tuesday night through next Sunday) Issued at 1237 AM CDT MON JUN 30 2025 By Wednesday, the trough axis will be centered over Central Alabama and the cold front will be situated across southern portions of the CWA. Low to mid-level flow will be shifting to the north-northwest across our north and drier air will begin filtering into the region. Will maintain rain chances on Wednesday, but they will be focused across our south. Otherwise, the forecast will trend much drier by Thursday and Friday as the trough continues to shift into the Atlantic and deep, continental ridging slowly shifts from the Central Plains eastward. We should see plenty of sunshine during this time, lower humidity, and a warming trend in our temperatures. Highs will be back into the mid 90s by the end of the week, but afternoon mixing should keep heat indices below Heat Advisory criteria. A cutoff low associated with the departing trough from earlier in the week may become pinched over Florida between the Atlantic ridge and continental ridge. We will have to wait and see how that could affect our forecast heading into next week, but it could reintroduce some moisture back to the area depending on the strength of the ridge over us at that time. 86/Martin && .AVIATION... (00Z TAFS) Issued at 550 PM CDT MON JUN 30 2025 Convection is expected to extend past sunset once again for a few hours with scattered areas ongoing currently. Have variously timed TEMPOs based on the current. Then convection should become more isolated for the remainder of the night. Only confident enough at TCL for some early pre-dawn SHRA possibility for now. With lots of low level moisture in its wake, MVFR then some IFR cigs will be possible overnight along with a little patchy fog at times. All sites should be VFR by ~18-19z Tue. Some morning scattered SHRA will be possible. SHRA/TSRA is again expected to become widespread in the afternoon with some gusty winds at times as we remain in a wet pattern. Outside of convection, winds should be light. NOTE: AMD LTD TO CLD VIS AND WIND has been added at MGM until further notice due to comms issues. 08 && .FIRE WEATHER... Numerous shower and thunderstorm activity will be prevalent across the area again this afternoon and Tuesday afternoon as a front moves into the area. Moisture content will be quite high over the next couple of days with min RH as high as 65-80%. Winds will be light other than gusts associated with thunderstorm activity. Drier conditions will return after mid-week once the front passes through the area, with min RH values 45-55%, but there are no fire weather concerns at this time. && .PRELIMINARY POINT TEMPS/POPS... Gadsden 70 86 69 89 / 50 90 40 20 Anniston 70 85 70 87 / 50 90 40 20 Birmingham 71 86 70 87 / 50 80 40 20 Tuscaloosa 73 85 73 89 / 50 80 30 20 Calera 71 85 71 88 / 50 80 40 20 Auburn 70 83 70 85 / 50 90 50 30 Montgomery 71 86 71 88 / 50 90 50 30 Troy 70 84 70 86 / 50 90 50 40 && .BMX WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...12 LONG TERM....12/86/Martin AVIATION...08