A decaying thunderstorm produced isolated wind damage in the northern portions of the city of Florence. Multiple rounds of heavy rainfall led to flash flooding in Marshall, Jackson, and Cullman Counties in Northeastern Alabama, flooding roads and causing them to become impassable.
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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 HUN wrote it up.
A decaying thunderstorm produced isolated wind damage in the northern portions of the city of Florence. Multiple rounds of heavy rainfall led to flash flooding in Marshall, Jackson, and Cullman Counties in Northeastern Alabama, flooding roads and causing them to become impassable.
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 Huntsville, AL wrote its last area forecast discussion before the first event at May 25, 11:14 AM CST, 16 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Huntsville AL 1214 PM CDT Mon May 25 2026 ...New AVIATION... .KEY MESSAGES... Updated at 1016 AM CDT Mon May 25 2026 - A Flood Watch for Flash Flooding is in effect through 10 PM Tuesday for Cullman, Morgan, Madison, Jackson, Marshall and Dekalb counties. - Medium to high chances for showers and thunderstorms continue into the weekend. && .NEAR TERM... (Rest of Today and Tonight) Issued at 1016 AM CDT Mon May 25 2026 Satellite imagery shows a nearly stationary low pressure system centered across eastern portions of TX. To its east, deep southerly flow is streaming moisture northward from the Gulf into the TN and MS River Valleys. Convection continues to develop across southern MS/AL with lighter returns further to the north. As we head into the afternoon, additional thunderstorms are forecast to develop across portions of central AL and then move north into northern AL and southern middle TN. Based on the morning CAMs, the bulk of the heavy precip should stay in central AL and then clipping portions of north-central and northeast AL. Unfortunately, this region has been hit the hardest with heavy rainfall over the last several days. Therefore, a Flood Watch is in effect through Tuesday night for heavy rainfall causing flash flooding. Conditions once again appear favorable for high rain rates of 1-2 inches per hour. Pwats are forecast to be between 1.7-1.8 inches, which is above the 90th percentile based on BMX sounding climatology. Overnight, we should have a reprieve in the heavy rainfall. However, given the warm and moist environment, cannot fully rule out at least a low to medium (30-60%) of a few light showers overnight. Something to watch if we can get a break in the clouds and precip is for the development of fog early Tuesday morning. NBM probs are only showing a low chance (10-20%) of reduced visibilities, therefore for now leaving out of the current forecast package. && .SHORT TERM... (Tuesday through Wednesday) Issued at 1016 AM CDT Mon May 25 2026 The overall weather pattern remains unchanged as we head into the middle of the week. Temperatures both Tuesday and Wednesday are forecast to rise into the upper 70s to lower 80s with overnight lows in the mid to upper 60s. The greatest concern continues to be the medium to high chance (60-80%) of precip each day. It is still uncertain exactly when the greatest coverage of showers and storms will be each day, but the afternoon/evening hours appear the most favorable given the strong moisture advection off the Gulf combined with daytime heating. Locally heavy rainfall will be the main concern, especially if storms train over the same location. Depending on how things evolve over the next day or two, we may need to think about extending or expanding the Flood Watch in future update. && .LONG TERM... (Wednesday night through Sunday) Issued at 1146 PM CDT Sun May 24 2026 As we go into Wednesday night, an upper low should be positioned over the Sierra Nevada range. Rather sharp, smaller synoptic scale ridging was also in place from the Deep south to the Upper Mississippi River Valley. But more upper lows over SE Canada was producing troughing along eastern seaboard from the Mid Atlantic and northward. The western trough should weaken as we go into the weekend, with upper ridging from the Gulf to south/central Canada holding strong. The SE Canadian trough not only persists, but guidance even further out from Sunday show it potentially amplifying further to the south. By the midweek, a frontal boundary should be oriented in a west to east manner from the central Great Plains to the northern Delmarva. Because of upper troughing from eastern Canada, it will move more southward along the east coast across the Carolinas. But it should for the most part remain near to just north of our area in the latter half of the week. A southerly flow from the Gulf will keep a moist environment in place across the Deep South. This moisture along with daytime heating will destabilize, and bring more showers and thunderstorms each day. Precipitable water amounts for this period range from 1.7" to 1.9" which will favor locally heavy rainfall in the heavier showers and storms. Given that heavy rainfall will have already fallen in previous convection, additional amounts will run off and could result in flooding, as well as rises in creek, stream and river water levels. Overall thunderstorm strength for the most parts should remain general, gusty outflow winds the main threat. Storms in these environments can become very electrically active, thus consideration to seek safe shelter should storms near your location. With more clouds than sun and elevated rain chances, daily high temperatures for the extended should range mostly in the lower 80s (with some mid 80s at times), and lows in the mid 60s. && .AVIATION... (18Z TAFS) Issued at 1214 PM CDT Mon May 25 2026 Areas of moderate to heavy rain continue to overspread north AL with embedded thunderstorms. Confidence in any thunder impacting terminals decreased, so TSRA was removed from the TAF. Otherwise, expect MVFR to IFR conditions to prevail. In stronger showers, vsby and cigs may be reduced to LIFR. Another concern is early morning fog, much like today, plus low clouds. Airport minimums may be met closer to daybreak. Rain remains in the forecast all week. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...Flood Watch through Tuesday evening for ALZ006>010-016. TN...None. && NEAR TERM...GH SHORT TERM....GH LONG TERM....RSB AVIATION...30
Preliminary Local Storm Report
National Weather Service Huntsville AL
1037 AM CDT Mon May 25 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1240 PM Flash Flood 2 ESE Good Hope 34.10N 86.83W
05/24/2026 Cullman AL Emergency Mngr
Several reports of flooding around the Cross
Creek Golf Course. About 1.5 ft of water was
flowing across CR 490 with water up to the
bumpers of cars just south of the golf
course. There is another report of water
flowing over CR 437 and a video from
Facebook shows potential road damage in this
area. Time is estimated.
&&Preliminary Local Storm Report
National Weather Service Huntsville AL
1102 AM CDT Mon May 25 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1240 PM Flash Flood 6 S Good Hope 34.03N 86.88W
05/24/2026 Cullman AL Emergency Mngr
Reports of flooding on County Road 223 with
at least 6 inches of water flowing across
it.
&&Preliminary Local Storm Report
National Weather Service Huntsville AL
1107 AM CDT Mon May 25 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1240 PM Flash Flood 1 SW Good Hope 34.10N 86.88W
05/24/2026 Cullman AL Emergency Mngr
CR 437 and Beechgrove Road in Good Hope is
covered with 6+ inches of flowing water. The
northern portion of Beechgrove Road is
currently closed. Time is estimated.
&&The Northeast Alabama radar (KHTX), 102 km away, was scanning. The volume nearest the first event began at 17:31 UTC.
7 thunderstorm wind, 5 flash flood. Local standard time, as filed.
A tree was reported down near 100 Watts road.
A tree was reported down near the intersection of Center Grove road and Apple Gove road.
A tree was reported down near the intersection of highway 67 and St John road.
A tree was reported down near 401 Turney road.
A tree was reported down near the intersection of E Upper River road and Mussle Camp road.
A tree was reported down near the intersection of Aubrey Drive and Wayne Street.
A tree was reported down near the intersection of CR 200 and CR 234.
County Road 45 is flooded. Depth of water unknown.
County Road 137 is flooded. Depth of water unknown.
County Road 42 is flooded. Depth of water unknown.
Highway 68 and Matt Morrow Road is impassable. Depth of water unknown.
Gilley Drive impassable due to flash flooding. Depth of water unknown.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alabama in 2026Every state in 2026This day in weather historyWarnings in Alabama, May 2026
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: 1339927, 1339901, 1339908, 1339906, 1339933, 1339897, 1339989, 1342404, 1342406, 1342407, 1342402, 1342403.