The combination of a moist and unstable air mass and hot temperatures led to the development of pulse severe storms across portions of north Alabama.

Thunderstorm Wind in MARSHALL, ALABAMA
From 01-JUL-12 18:35:00 to 01-JUL-12 18:36:00 (CST-6)
Location: GUNTERSVILLE
Magnitude: 78.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several strong thunderstorms merged and intensified around the southern portion of Guntersville lake. A microburst occurred, with the most significant damage occurring at the Claysville snack bar located along Highway 431, just south of the Highway 431/Highway 79 interchange. The small cinder block building with a relatively flat wood roof that was covered by sheet metal, was heavily damaged. The wind ripped the entire roof structure off and collapsed three of the four exterior walls. The debris was thrown downwind approximately 100 yards. The microburst had estimated maximum winds of 90 mph and appeared to initially be concentrated directly over the snack bar, with further damage moving away from this point. There was evidence of a 50 yard section of a chain link fence being bent foward and nearly uprooted by the damaging wind.  The estimated length of this particular microburst was 0.6 miles.
A couple of blocks downstream and to the north and between Braswell road and a nearby marina, several medium sized trees were snapped midway down the tree, with smaller branches thrown around.  There were also a few sproadic trees downed just northeast of the microburst location.

Thunderstorm Wind in DEKALB, ALABAMA
From 01-JUL-12 18:47:00 to 01-JUL-12 18:48:00 (CST-6)
Location: COLLINSVILLE
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were downed by thunderstorm winds along highway 68 between Collinsville and Crossville, Alabama.

Thunderstorm Wind in MARSHALL, ALABAMA
From 01-JUL-12 19:03:00 to 01-JUL-12 19:04:00 (CST-6)
Location: GRANT
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees and power lines on Preston Island were downed by thunderstorm winds.

Thunderstorm Wind in JACKSON, ALABAMA
From 01-JUL-12 19:15:00 to 01-JUL-12 19:16:00 (CST-6)
Location: LANGSTON
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Numerous trees were blown down by thunderstorm winds. Awnings were also blown off of campers at the Little Mountain Resort.

Thunderstorm Wind in DEKALB, ALABAMA
From 01-JUL-12 18:55:00 to 01-JUL-12 18:56:00 (CST-6)
Location: COLLINSVILLE
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A few trees were donwed by thunderstorm winds.

Hail in DEKALB, ALABAMA
From 01-JUL-12 19:25:00 to 01-JUL-12 19:26:00 (CST-6)
Location: FISHER XRDS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter size hail was reported.

Lightning in JACKSON, ALABAMA
From 01-JUL-12 19:35:00 to 01-JUL-12 19:35:00 (CST-6)
Location: SECTION
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Lightning set fire to a home near County Road 120.

Thunderstorm Wind in JACKSON, ALABAMA
From 01-JUL-12 19:35:00 to 01-JUL-12 19:36:00 (CST-6)
Location: SCOTTSBORO
Magnitude: 43.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A few large limbs were downed by thunderstorm winds.

Thunderstorm Wind in DEKALB, ALABAMA
From 01-JUL-12 19:03:00 to 01-JUL-12 19:04:00 (CST-6)
Location: TEN BROECK
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down onto a home, which also suffered roof damage from thunderstorm winds.

Thunderstorm Wind in DEKALB, ALABAMA
From 01-JUL-12 19:03:00 to 01-JUL-12 19:04:00 (CST-6)
Location: TEN BROECK
Magnitude: 52.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A home had moderate roof damage and a shed had its roof blown off by thunderstorm winds.

Thunderstorm Wind in DEKALB, ALABAMA
From 01-JUL-12 19:05:00 to 01-JUL-12 19:06:00 (CST-6)
Location: TEN BROECK
Magnitude: 52.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A hay barn was destroyed by thunderstorm winds.

Hail in LAWRENCE, ALABAMA
From 01-JUL-12 17:06:00 to 01-JUL-12 17:17:00 (CST-6)
Location: MOULTON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Golf ball sized hail was reported and a tree was blown down by thunderstorm winds.

Thunderstorm Wind in DEKALB, ALABAMA
From 01-JUL-12 18:45:00 to 01-JUL-12 18:46:00 (CST-6)
Location: CROSSVILLE
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A shed was destroyed near County Road 25 and County Road 4 by thunderstorm winds.

Thunderstorm Wind in DEKALB, ALABAMA
From 01-JUL-12 19:12:00 to 01-JUL-12 19:13:00 (CST-6)
Location: FYFFE
Magnitude: 52.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A roof of a large tractor repair shop was blown off and the remainder of the building sustained substantial structural damage.  The building was located near the intersection of County Road 426 and County Road 540.

Hail in CULLMAN, ALABAMA
From 01-JUL-12 17:20:00 to 01-JUL-12 17:21:00 (CST-6)
Location: CULLMAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Penny sized hail was reported.

Thunderstorm Wind in LIMESTONE, ALABAMA
From 01-JUL-12 17:40:00 to 01-JUL-12 17:42:00 (CST-6)
Location: HOLBERT SPGS
Magnitude: 52.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A few power lines and trees were downed by thunderstorm winds. Also, a large tree fell on a camper trailer, which injured one person inside.  A set of porch pylons also collapsed at the same location on Snake Road near the Forks of the river in Limestone county.

Hail in COLBERT, ALABAMA
From 01-JUL-12 18:01:00 to 01-JUL-12 18:01:00 (CST-6)
Location: (MSL)MUSCLE SHOALS A
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Quarter size hail was reported.

Lightning in COLBERT, ALABAMA
From 01-JUL-12 18:01:00 to 01-JUL-12 18:01:00 (CST-6)
Location: LEIGHTON
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Lighting sparked a small tree fire.

Thunderstorm Wind in DEKALB, ALABAMA
From 01-JUL-12 19:12:00 to 01-JUL-12 19:13:00 (CST-6)
Location: FYFFE
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A barn lost its roof due to thunderstorm winds. The roof was laying across County Road 538 near Grove Oak.