


Area Forecast Discussion
Issued by NWS Birmingham, AL
Issued by NWS Birmingham, AL
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286 FXUS64 KBMX 021742 AFDBMX Area Forecast Discussion National Weather Service Birmingham AL 1242 PM CDT Sat Aug 2 2025 ...New SHORT TERM, LONG TERM, AVIATION... .KEY MESSAGES... Updated at 1231 PM CDT SAT AUG 2 2025 - There is a Marginal Risk (level 1 of 5) for severe storms with damaging wind gusts this afternoon and evening for locations southeast Interstate 20. - There is Level 2 out of 4 risk for excessive rainfall across eastern and southeastern Central Alabama through this evening. Isolated flash flooding events are possible. && .SHORT TERM... (This evening through Sunday) Issued at 1231 PM CDT SAT AUG 2 2025 Surface analysis early this afternoon depicts a cold front draped along the Northern Gulf coast. Showers and thunderstorms have been forming along the boundary, where low level convergence is maximized, through the morning. This activity is expected to expand north through the afternoon hours as several bouts of H85-H5 vorticity rotate around the base of an upper trough centered across the Great Lakes region. SPC has maintained a Marginal Risk (Level 1 of 5) of severe storms across much of the southern half of the CWA for this afternoon and evening. The combination of passing upper level support, a stalled boundary, and increasing instability will support isolated to scattered storms later on today. Forecast soundings reveal an inverted-v profile suggesting a primary threat of damaging winds today. In addition to the severe threat, we will need to monitor for an increasing flash flooding threat. A warm, moist airmass is in place (GOES TPW imagery showing PWATs of 2.11") will help support efficient rainfall product. Select forecast soundings indicate a nearly fully saturated profile with a deep warm cloud depth which further supports the risk of heavy rainfall. Isolated to scattered flash flooding is likely, especially for those that receive ample rainfall yesterday. Therefore, WPC has introduced a Slight Risk (Level 2 of 4) of Excessive Rainfall for much of our eastern areas through this evening. Activity is expected to diminish through the evening hours as we lose daytime heating. We have a nice "break" in the heat today as increased rain chances and cloud cover will help keep heat indices in check. Sunday is likely to feature some even cooler high temps, generally in the mid 70s along the AL/GA border, as wedge flow gradually develops due to a surface high sagging south along the Atlantic seaboard. Latest guidance hints at a 50-80% chance of highs below 80F for some tomorrow. 95/Castillo && .LONG TERM... (Sunday night through next Friday) Issued at 1231 PM CDT SAT AUG 2 2025 An unsettled pattern continues into next week as a longwave trough axis remains stretched across the eastern CONUS while a stout upper ridge builds in out west. Several disturbances will rotate along the periphery of these features through the week, adding increased lift across the southeast. This will ultimately lead to increased chances for diurnally driven showers and thunderstorms. Rainfall totals through the middle of the next week range from 0.5-1" across our NW areas to 2-3" for our SW counties. However, this rain will not fall all at once which will help mitigate some flooding concerns. High temps into early next week stay on the cooler side (for August) as wedge flow continues. High temps look to top out in the mid to upper 70s across our eastern counties. Those further west will climb into the 80s daily. By the middle to end of the work week, we all warm back up into the mid to upper 80s. 95/Castillo && .AVIATION... (18Z TAFS) Issued at 1231 PM CDT SAT AUG 2 2025 Showers and thunderstorms are beginning to develop across the area early this afternoon. Any passing storm could bring low level ceilings and gusty winds. Otherwise, VFR conditions prevail through this evening. Opted to transition to TEMPO groups for TSRA as the latest CAMs continue to show development across the region. Some activity may linger a bit longer this evening at ASN/MGM/AUO. Another round of MVFR/IFR ceilings are likely tonight with VFR returning late tomorrow morning. 95/Castillo && .FIRE WEATHER... No issues from fire weather elements are expected over the coming days. Daily showers and thunderstorms are expected, most focused on the afternoon to evening time frame. 20-foot winds will be light, except variable and gusty in and near showers and thunderstorms. && .PRELIMINARY POINT TEMPS/POPS... Gadsden 69 79 64 78 / 60 50 30 40 Anniston 71 79 66 78 / 60 60 30 50 Birmingham 72 82 67 77 / 40 60 20 50 Tuscaloosa 72 86 69 81 / 30 50 20 50 Calera 72 82 67 79 / 40 70 30 50 Auburn 72 80 66 77 / 80 80 50 70 Montgomery 73 85 68 79 / 60 80 40 70 Troy 72 85 68 79 / 70 80 50 80 && .BMX WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...95/Castillo LONG TERM....95/Castillo AVIATION...95/Castillo