A cluster of nearly stationary thunderstorms developed along the Interstate 85 corridor and produced localized flooding in western Macon 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 cluster of nearly stationary thunderstorms developed along the Interstate 85 corridor and produced localized flooding in western Macon 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 Sep 11, 5:42 AM CST, 1 hour 48 minutes earlier.
Area Forecast Discussion National Weather Service Birmingham AL 642 AM CDT Sun Sep 11 2022 ...New AVIATION... .SHORT TERM... (Today through Monday) Issued at 315 AM CDT SUN SEP 11 2022 /Frontal passage on Monday to bring an end to shower and storm chances by day's end/ We'll have a trough axis draped across the region today, related to a degrading upper low/trough just to our west and a larger upper trough approaching the Midwest. Low-level moisture will be plentiful with dew points in the lower 70s though, as seen on water vapor imagery, swaths of drier air aloft will advect from the southwest. This should result in a varied presence of showers and a few storms today, with activity seemingly maximized near and north of Interstate 20 in association with a surface trough preceding an approaching front. While some activity will persist into the evening, there should be a general decline in coverage as the night and front progress. The progression of the front should favor renewed and diurnally driven showers and storms occurring near and southeast of Interstate 85 on Monday. Lower dew points/less humid air, already moving into Northwest Alabama Monday morning, will progress southeastward through the course of Monday along with a decrease in cloud cover. High pressure will gradually build from the north, allowing fair weather to take hold behind the front. && .LONG TERM... (Tuesday through Saturday) Issued at 315 AM CDT SUN SEP 11 2022 A strong upper-level disturbance is forecast to move east across the Great Lakes at the beginning of the period. An associated surface low will propagate east with this system with a trailing cold front effectively sweeping across much of the eastern CONUS. A dry, continental airmass will advect into the region providing calm, stable stable weather that should persist through the end of the period. Our first "taste of fall" will include noticeably drier air, both in tropospheric moisture content and in sensible moisture (dewpoints). This will lead to mainly rain-free conditions and mostly clear skies each day. Drier conditions will foster cooler overnight periods and warm afternoons, generally featuring a broad diurnal temperature range, 25-30+ degrees in some cases. Overall, I've tried to capture more favorable MOS guidance in terms of highs/lows each day, including potential cold air drainage situations through mid week. By the end of the period the airmass should have already begun steady modification. I trend upward with moisture/dewpoints and have <24% PoPs for areas southeast as global ensembles still suggest some QPF creeping back in the Gulf Coast/Southeast regions. && .AVIATION... (12Z TAFS) Issued at 640 AM CDT SUN SEP 11 2022 /Morning IFR followed by afternoon VFR/ As of 11:45z, IFR ceilings were in place across much of Central Alabama with pockets of and localized fluctuation to MVFR. Low ceilings are expected to persist through 15z, or so, before gradually lifting to VFR range into the afternoon. Spotty showers and storms are expected at times today, with a batch of early- morning activity already affecting TOI. Low ceilings may again develop overnight Sunday/toward the end of the current TAF period. A wind shift is also forecast Sunday night as a front nears the area. 89^GSatterwhite && .FIRE WEATHER... Elevated moisture values remain in place through today with RH values 60-70% or higher. This will promote scattered showers and thunderstorms, mainly this afternoon and evening. Expect southerly to southwesterly surface and 20 ft winds at 5-8 mph. A cold front is forecast to move through the area tomorrow. This will allow for drier, cooler conditions through the next few days. Afternoon RH values could fall as low as 30% on Tuesday and Wednesday with mainly a northerly wind component. && .PRELIMINARY POINT TEMPS/POPS... Gadsden 84 65 80 53 / 60 50 10 0 Anniston 85 68 80 55 / 50 50 10 0 Birmingham 84 66 81 58 / 60 40 10 0 Tuscaloosa 85 66 81 57 / 60 30 0 0 Calera 85 68 81 57 / 50 40 10 0 Auburn 83 69 82 60 / 50 40 30 10 Montgomery 86 71 85 59 / 40 40 20 0 Troy 86 70 84 60 / 50 30 40 10 && .BMX WATCHES/WARNINGS/ADVISORIES... None. && SHORT TERM...89^GSatterwhite LONG TERM....40 AVIATION...89^GSatterwhite
Hazardous Weather Outlook National Weather Service Birmingham AL 253 AM CDT Sun Sep 11 2022 ALZ011>015-017>050-121100- 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- 253 AM CDT Sun Sep 11 2022 This Hazardous Weather Outlook is for the counties served by the National Weather Service office in Birmingham. .DAY ONE...Outlook through Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Activation of storm spotters and emergency management is not expected at this time.
The Maxwell AFB radar (KMXX), 27 km away, was scanning. The volume nearest the first event began at 13:30 UTC.
1 flash flood. Local standard time, as filed.
Bridge flooded and impassable on County Road 13 at Thobolocco Creek.
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, September 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: 1056980.