North Alabama averted most of the severe weather associated with a large severe weather outbreak across the deep South.  An initial area of elevated thunderstorms followed by a quasi-linear convective system (QLCS) moved through during the morning hours ahead of a northward advancing warm front.  The front eventually reached northern Alabama, but persistent rain and thunderstorms through the day limited the instability available to fuel a more widespread severe weather threat during the afternoon and evening hours.   Rainfall amounts of 2 to 4 inches resulted in brief  flooding of small creeks near Florence and Tuscumbia, and more nuisance minor street flooding elsewhere.
As the strong cold front and upper level trough approached during the evening,   a thunderstorm and meso-cyclone was responsible for knocking a couple of trees down in DeKalb County.

Flash Flood in CULLMAN, ALABAMA
From 15-APR-11 15:16:00 to 15-APR-11 18:00:00 (CST-6)
Location: HANCEVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Lark Street was closed due to flash flooding.

Thunderstorm Wind in LAUDERDALE, ALABAMA
From 15-APR-11 09:37:00 to 15-APR-11 09:40:00 (CST-6)
Location: OAKLAND
Magnitude: 43.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was knocked down across County Road 14 near Oakland.

Thunderstorm Wind in COLBERT, ALABAMA
From 15-APR-11 14:39:00 to 15-APR-11 14:42:00 (CST-6)
Location: MUSCLE SHOALS
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds knocked a tree down on a power line.

Thunderstorm Wind in DEKALB, ALABAMA
From 15-APR-11 20:32:00 to 15-APR-11 20:35:00 (CST-6)
Location: ELLIOT XRDS
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds knocked a tree down at the intersection of Highways 75 and 40.

Flash Flood in COLBERT, ALABAMA
From 15-APR-11 11:25:00 to 15-APR-11 14:30:00 (CST-6)
Location: RED ROCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash flooding occurred along Patrick Lane per a photograph sent into the National Weather Service.

Lightning in LIMESTONE, ALABAMA
From 15-APR-11 11:34:00 to 15-APR-11 11:34:00 (CST-6)
Location: ATHENS
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Lightning struck a power pole at he intersection of Jefferson Street and U.S. Highway 72.  A live wire fell on a vehicle waiting in the drive-thru line of a fast food restaurant.  No injuries were reported.  Power was knocked out at several businesses and the traffic signal for several hours.

Lightning in MORGAN, ALABAMA
From 15-APR-11 10:17:00 to 15-APR-11 10:17:00 (CST-6)
Location: TRINITY
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning struck a primary power substation in Trinity, causing a power outage of around 10,000 customers for about 30 minutes.

Thunderstorm Wind in DEKALB, ALABAMA
From 15-APR-11 21:32:00 to 15-APR-11 21:35:00 (CST-6)
Location: NEW HOME
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds knocked a tree down along County Road 671.

Heavy Rain in LAUDERDALE, ALABAMA
From 15-APR-11 11:42:00 to 15-APR-11 11:42:00 (CST-6)
Location: KILLEN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Up to 2.25 inches of rain was reported since 10 am resulting in minor street flooding in Killen.