During the early morning hours of Tuesday, July 31, thunderstorms developed along a moisture/instability gradient across Tennessee and Missouri, within an active northwesterly flow pattern. Activity condensed into several clusters of thunderstorms and moved southeastward into central Alabama. These storms tracked across the same areas within a short time frame. With deep moisture and high rainfall rates, flash flooding occured across portions of Jefferson and Shelby counties, in addition to hail and wind damage.

Thunderstorm Wind in AUTAUGA, ALABAMA
From 31-JUL-12 02:15:00 to 31-JUL-12 02:15:00 (CST-6)
Location: NEW PROSPECT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down blocking the roadway along County Road 20 West at the Interstate 65 overpass.

Thunderstorm Wind in AUTAUGA, ALABAMA
From 31-JUL-12 02:15:00 to 31-JUL-12 02:15:00 (CST-6)
Location: WHITE CITY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down blocking the roadway near the intersection of County Road 24 and County Road 19.

Thunderstorm Wind in AUTAUGA, ALABAMA
From 31-JUL-12 02:15:00 to 31-JUL-12 02:15:00 (CST-6)
Location: NEW PROSPECT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A large tree was blown down blocking the roadway near the intersection of County Road 57 and County Road 20.

Thunderstorm Wind in WALKER, ALABAMA
From 31-JUL-12 03:18:00 to 31-JUL-12 03:18:00 (CST-6)
Location: DRIFTON
Magnitude: 58.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Numerous trees and power lines were blown down in and around Good Springs, with most of the damage concentrated along Alabama Highway 269.

Thunderstorm Wind in WALKER, ALABAMA
From 31-JUL-12 03:36:00 to 31-JUL-12 03:36:00 (CST-6)
Location: DRIFTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees and power lines were blown down in the Tutwiler community along County Road 6.

Thunderstorm Wind in SHELBY, ALABAMA
From 31-JUL-12 04:07:00 to 31-JUL-12 04:07:00 (CST-6)
Location: WILTON
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Numerous large trees and power lines were blown down along Highway 25, County Road 8, and Reeder St. Streets were closed until trees could be cleared.

Flash Flood in JEFFERSON, ALABAMA
From 31-JUL-12 05:00:00 to 31-JUL-12 08:00:00 (CST-6)
Location: MAGELLA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Several cars were stranded in flood waters on Green Springs Highway under the Interstate 65 overpass.

Thunderstorm Wind in CHILTON, ALABAMA
From 31-JUL-12 04:42:00 to 31-JUL-12 04:42:00 (CST-6)
Location: MAPLESVILLE
Magnitude: 43.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: County Official

Numerous trees and large tree limbs were blown down throughout the town of Maplesville.

Flash Flood in JEFFERSON, ALABAMA
From 31-JUL-12 07:00:00 to 31-JUL-12 07:15:00 (CST-6)
Location: ACIPCO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The intersection of 6th Ave S and 9th St S flooded, resulting in a water rescue.

Heavy Rain in CHILTON, ALABAMA
From 31-JUL-12 00:00:00 to 31-JUL-12 09:00:00 (CST-6)
Location: MINOOKA
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHS observer in northern Chilton county measured a storm total rainfall over nine hours of 7.10 inches.

Flash Flood in JEFFERSON, ALABAMA
From 31-JUL-12 07:15:00 to 31-JUL-12 09:15:00 (CST-6)
Location: CAHABA HGTS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Due to heavy rainfall, the Interstate 459 S exit ramp to U.S. Highway 280 flooded and was closed.

Thunderstorm Wind in AUTAUGA, ALABAMA
From 31-JUL-12 02:30:00 to 31-JUL-12 02:30:00 (CST-6)
Location: POSEYS XRDS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down into roadway at County Road 40 W and County Road 57.

Thunderstorm Wind in AUTAUGA, ALABAMA
From 31-JUL-12 02:50:00 to 31-JUL-12 02:50:00 (CST-6)
Location: MULBERRY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down into roadway at Highway 14 W and County Road 9.

Thunderstorm Wind in MARION, ALABAMA
From 30-JUL-12 23:30:00 to 30-JUL-12 23:30:00 (CST-6)
Location: HACKLEBURG
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees were blown down across Alabama Highway 43, just north of the site of the Wrangler Plant.

Thunderstorm Wind in MARION, ALABAMA
From 30-JUL-12 23:30:00 to 30-JUL-12 23:30:00 (CST-6)
Location: BEAR CREEK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees were blown down in Bear Creek.

Thunderstorm Wind in BLOUNT, ALABAMA
From 30-JUL-12 23:40:00 to 30-JUL-12 23:40:00 (CST-6)
Location: BLOUNTSVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were blown down across the county, including in and around Blountsville.

Thunderstorm Wind in WINSTON, ALABAMA
From 30-JUL-12 23:45:00 to 30-JUL-12 23:45:00 (CST-6)
Location: HALEYVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees were blown down in Haleyville and the surrounding area, resulting in numerous power outages across the county.

Thunderstorm Wind in JEFFERSON, ALABAMA
From 31-JUL-12 00:00:00 to 31-JUL-12 00:00:00 (CST-6)
Location: MT OLIVE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several trees were blown down in the Fultondale area.

Thunderstorm Wind in WINSTON, ALABAMA
From 31-JUL-12 00:00:00 to 31-JUL-12 00:00:00 (CST-6)
Location: LYNN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several trees were blown down in the community of Lynn.

Hail in JEFFERSON, ALABAMA
From 31-JUL-12 00:08:00 to 31-JUL-12 00:08:00 (CST-6)
Location: FULTONDALE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WALKER, ALABAMA
From 31-JUL-12 00:40:00 to 31-JUL-12 00:40:00 (CST-6)
Location: BRADLEYTOWN
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees and power lines were blown down along Alabama Highway 269 near Parrish.

Thunderstorm Wind in WALKER, ALABAMA
From 31-JUL-12 00:35:00 to 31-JUL-12 00:35:00 (CST-6)
Location: MC CULLUM
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees were blown down, blocking Kings Mill Rd.

Thunderstorm Wind in WALKER, ALABAMA
From 31-JUL-12 00:42:00 to 31-JUL-12 00:42:00 (CST-6)
Location: SUMITON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Power lines were blown down across Main St in Sumiton. In addition, a large amount of tree debris was noted in the roadway.

Thunderstorm Wind in WALKER, ALABAMA
From 31-JUL-12 00:53:00 to 31-JUL-12 00:53:00 (CST-6)
Location: DRIFTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were blown down blocking Tutwiler Rd.

Thunderstorm Wind in SHELBY, ALABAMA
From 31-JUL-12 00:54:00 to 31-JUL-12 00:54:00 (CST-6)
Location: PELHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Strong winds caused the partial collapse of the awning at the Jet Pep gas station.

Flash Flood in SHELBY, ALABAMA
From 31-JUL-12 01:45:00 to 31-JUL-12 04:45:00 (CST-6)
Location: PARAMOUNT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nine homes in the Saddle Run subdivision had between 2 and 18 inches of water flood the first floor of the home.

Flash Flood in SHELBY, ALABAMA
From 31-JUL-12 01:30:00 to 31-JUL-12 04:30:00 (CST-6)
Location: ACTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two homes in the Stratford Place Subdivision were flooded by 5 and 13 inches of water on the first floor, respectively.

Flash Flood in SHELBY, ALABAMA
From 31-JUL-12 01:50:00 to 31-JUL-12 04:50:00 (CST-6)
Location: SCOTROCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Alabama Highway 31 was closed near Shelby Baptist Medical Center due to one foot of water covering the roadway.

Flash Flood in SHELBY, ALABAMA
From 31-JUL-12 01:50:00 to 31-JUL-12 04:50:00 (CST-6)
Location: PELHAM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A portion of Birmingham South Campground flooded and evacuations were necessary.

Flash Flood in JEFFERSON, ALABAMA
From 31-JUL-12 02:00:00 to 31-JUL-12 02:15:00 (CST-6)
Location: AVONDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Street flooding at 35th St and Brook St N in Birmingham resulted in one water rescue.

Flash Flood in SHELBY, ALABAMA
From 31-JUL-12 02:00:00 to 31-JUL-12 07:00:00 (CST-6)
Location: PARAMOUNT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flooding due to heavy rain occurred at the Pelham YMCA. Water flooded the building and pool area, resulting in the facility being closed for several days.

Flash Flood in SHELBY, ALABAMA
From 31-JUL-12 02:00:00 to 31-JUL-12 05:00:00 (CST-6)
Location: PARAMOUNT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flooding was reported at the Belle Vista Mobile Home Park.

Thunderstorm Wind in CHILTON, ALABAMA
From 31-JUL-12 02:07:00 to 31-JUL-12 02:07:00 (CST-6)
Location: COOPER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A large tree was blown down blocking the roadway near the intersection of County Road 59 and County Road 24.

Thunderstorm Wind in WALKER, ALABAMA
From 31-JUL-12 03:03:00 to 31-JUL-12 03:03:00 (CST-6)
Location: TOWNLEY
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees and power lines were blown down along Highway 124 in the Townley community.

Thunderstorm Wind in AUTAUGA, ALABAMA
From 31-JUL-12 02:15:00 to 31-JUL-12 02:15:00 (CST-6)
Location: NEW PROSPECT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down into roadway at County Road 20 and County Road 65.

Flood in SHELBY, ALABAMA
From 31-JUL-12 08:45:00 to 31-JUL-12 11:45:00 (CST-6)
Location: QUITO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

As heavy rain came to an end across Shelby county, Highway 119 near Briarwood School was closed due to water continuing to flow across the roadway.

Thunderstorm Wind in SHELBY, ALABAMA
From 31-JUL-12 01:15:00 to 31-JUL-12 01:15:00 (CST-6)
Location: SAGINAW
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Several large tree limbs were blown down and tree tops snapped along County Road 339 between County Road 340 and County Road 26. One tree fell onto a vehicle.

Thunderstorm Wind in JEFFERSON, ALABAMA
From 31-JUL-12 03:37:00 to 31-JUL-12 03:37:00 (CST-6)
Location: SHORT CREEK
Magnitude: 58.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A large tree was blown down across Alabama Highway 269.