A mid level trough just north of the I-85 corridor provided the focus for the development of slow moving thunderstorms. PWAT's near two inches resulted in storms that produced high rainfall rates and flash flooding across northern Montgomery County.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS BMX wrote it up.
A mid level trough just north of the I-85 corridor provided the focus for the development of slow moving thunderstorms. PWAT's near two inches resulted in storms that produced high rainfall rates and flash flooding across northern Montgomery County.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Birmingham, AL wrote its last area forecast discussion before the first event at Aug 25, 4:23 AM CST, 6 hours 7 minutes earlier.
Area Forecast Discussion National Weather Service Birmingham AL 523 AM CDT Thu Aug 25 2022 .UPDATE... For 12Z Aviation. && .SHORT TERM... /Updated at 0306 AM CDT Thu Aug 25 2022/ Through Friday. The wet pattern continues, with another rinse and repeat forecast. The main surface low remains over Louisiana, while another shortwave slide across souther MS and southern AL near the surface boundary. This will create another well above normal precipitation day and below normal temperatures. The heavier rains will be across the south and generally west of I-65. Looks like a band of showers may persist after dark between I-85 and I-20, so continued with higher PoPs here. This shortwave works out overnight and another round of low clouds/patchy fog will develop. On Friday the low is still in the same general vicinity but we will see a frontal boundary approach form the north that will help increase the coverage during the afternoon. Although the front never makes it down into Central Alabama through the short term, the pattern may shift the best rain chances even further south. 16 .LONG TERM... /Updated at 0306 AM CDT Thu Aug 25 2022/ Saturday through Wednesday. The active pattern is expected to continue through the weekend and into early next week. The main trough axis that has persisted across the eastern CONUS will shift just to our east on Saturday. Ridging builds in in the lower levels with generally weak quasi-zonal flow aloft. Overall, expect the moist airmass to persist, providing more than enough support scattered to numerous showers each day through next week. Guidance seems to be in fairly good agreement on the temperatures through the week, which adds confidence to the forecast. Rain chances in this pattern could change in upcoming forecasts, but expect near-normal diurnal coverage to slightly above normal coverage of showers and storms in the afternoons. 25/Owen && .AVIATION... 12Z TAF Discussion. Tropical airmass remains on top of Central Alabama. High rain chances and low clouds. Look for ceilings to continue to drop with IFR/MVFR conditions through mid morning. Numerous to widespread showers in the late morning through the afternoon. Rinse and repeat this time tomorrow. 16 && .FIRE WEATHER... Rainy conditions should continue to affect much of the area through the weekend, especially south of I-20. Minimum RH values will be above 55 percent and 20 foot winds should remain less than 7 kts, mainly from the southeast Thursday and Friday. && .PRELIMINARY POINT TEMPS/POPS... Gadsden 83 69 87 69 90 / 70 40 60 20 40 Anniston 82 70 86 70 89 / 70 50 70 20 50 Birmingham 82 71 86 70 89 / 70 40 70 20 50 Tuscaloosa 82 71 86 71 87 / 80 60 70 20 50 Calera 81 71 86 71 88 / 80 60 80 20 50 Auburn 79 70 84 71 86 / 80 60 80 30 60 Montgomery 82 72 87 72 89 / 80 60 80 30 60 Troy 81 71 86 71 87 / 80 60 80 40 70 && .BMX WATCHES/WARNINGS/ADVISORIES... Flood Watch through this evening for Dallas-Greene-Hale-Marengo- Perry-Sumter. &&
Hazardous Weather Outlook National Weather Service Birmingham AL 309 AM CDT Thu Aug 25 2022 ALZ011>015-017>050-261115- Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun-Cherokee- Cleburne-Pickens-Tuscaloosa-Jefferson-Shelby-St. Clair-Talladega- Clay-Randolph-Sumter-Greene-Hale-Perry-Bibb-Chilton-Coosa-Tallapoosa- Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore-Montgomery-Macon- Bullock-Lee-Russell-Pike-Barbour- 309 AM CDT Thu Aug 25 2022 This Hazardous Weather Outlook is for the counties served by the National Weather Service office in Birmingham. .DAY ONE...Outlook through Tonight. Periods of heavy rainfall are possible through tonight. Isolated flooding may occur, especially for locations that receive repeated rainfall as well as low lying and poor drainage areas. At this time, the risk for flooding should be focused near and west of Interstate 65. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Activation of storm spotters and emergency management may be needed Today.
The Maxwell AFB radar (KMXX), 64 km away, was scanning. The volume nearest the first event began at 16:26 UTC.
2 flash flood. Local standard time, as filed.
Flooding reported at Maxwell Air Force Base. River Road impassable and at least one building with several feet of water in the basement. Rainfall amounts of two to four inches over a three hour period reported by an observer.
Flash flooding reported in the city limits of Montgomery. Several roads flooded and impassable including Taft Street, Fairview Avenue, Cloverdale, Zelda Road and Ann Street.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alabama in 2022Every state in 2022This day in weather historyWarnings in Alabama, August 2022
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1053413, 1053414.