


Area Forecast Discussion
Issued by NWS Birmingham, AL
Issued by NWS Birmingham, AL
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426 FXUS64 KBMX 111840 AFDBMX Area Forecast Discussion National Weather Service Birmingham AL 140 PM CDT Mon Aug 11 2025 ...New SHORT TERM, LONG TERM, AVIATION... .SHORT TERM... (This evening through Tuesday) Issued at 131 PM CDT MON AUG 11 2025 A surface trough located along the Gulf Coast will continue to push northward through the day today, with a surge of tropical moisture advecting across Central Alabama. Additional synoptic lift thanks to 500mb shortwave activity will aid in the development of numerous to widespread showers with a few storms through the remainder of the afternoon. Highest PoPs will remain across eastern and southeastern portions of the forecast area, where highs today will top out in the low to mid 80s. Farther west, highs will approach 90 degrees with less cloud cover as the tropical moisture hasn`t quite made it into those areas. Coverage will be highest this afternoon, but at least scattered showers will remain in the forecast through the overnight hours tonight. Low temperatures will be very muggy between 72 and 75 degrees in most locations. High rain chances will continue in the forecast through the day on Tuesday as the surface trough washes out across the Deep South. A plume of tropical moisture will continue to stream northward, with plenty of synoptic lift still available for tropical showers and storms with occasional heavy downpours. Widespread clouds will keep high temperatures down into the 80s. 56/GDG && .LONG TERM... (Tuesday night through next Sunday) Issued at 131 PM CDT MON AUG 11 2025 A hotter overall trend continues to emerge as we go into the long term by the end of the week and into the weekend. A broad 500mb ridge is advertised to set up over the northern Gulf Coast region by the end of the week and into the weekend. That would translate to highs back up into the mid 90s with a Moderate to High Heat Risk as dewpoints will be in the low to mid 70s. Normal diurnal coverage of showers and storms is anticipated, but we may have to watch for a few storms that may be on the strong to isolated severe side at least Thursday and Friday. A weak 500mb trough axis will attempt to slide southward into the Tennessee River Valley, which would increase westerly shear aloft. With additional instability from highs topping out in the 90s, we would need to monitor for the potential of storms with a downburst/microburst risk. Above normal temperatures are being advertised to continue through at least the middle of next week. 56/GDG && .AVIATION... (18Z TAFS) Issued at 131 PM CDT MON AUG 11 2025 Following IFR and MVFR stratus conditions this morning, ceilings have mixed to VFR for most sites as of 18z. SHRA with isolated TSRA will remain in the forecast for southern and eastern TAF sites. Showers will produce brief downpours but aren`t expected to last long enough to affect prevailing conditions through the afternoon hours. Also, confidence in prevailing TSRA through this afternoon remains low as well and have kept prevailing mention of SHRA for all sites. Surface winds will remain light from the east, becoming calm or variable overnight. Low IFR stratus conditions are expected for all terminals overnight as tropical moisture spreads across the forecast area. IFR conditions are expected to prevail through at least a good portion of Tuesday morning. 56 && .FIRE WEATHER... Moist summertime conditions will continue, and there are no fire weather concerns. Daily showers and thunderstorms will be the most active during the afternoon and evening hours. A significant upward trend in moisture will continue through tomorrow. 20-foot winds will be from the east today and south-southeast on Tuesday. && .PRELIMINARY POINT TEMPS/POPS... Gadsden 73 84 71 88 / 30 80 40 70 Anniston 73 83 72 87 / 40 80 40 70 Birmingham 74 84 73 87 / 30 70 40 70 Tuscaloosa 75 86 73 88 / 20 70 30 70 Calera 74 83 73 87 / 30 80 40 70 Auburn 73 83 72 86 / 50 80 30 70 Montgomery 74 86 73 88 / 50 80 30 70 Troy 73 84 71 87 / 50 80 20 70 && .BMX WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...56/GDG LONG TERM....56/GDG AVIATION...56/GDG