A strong upper level storm moving across the Mississipi Valley brought a dry line and cold front into north Alabama during the afternoon and early evening hours.  Several classic supercell thunderstorms developed by early afternoon in northwest Alabama, sweeping across the remainder of north Alabama during mid to late afternoon hours.  Many of the storms produced very large hail, up to baseball and softball sized, producing significant damage, especially from Decatur through Madison and northwest Huntsville.   One of the supercells produced a long track tornado producing damage of up to EF-3 intensity which struck northeastern Marshall County, crossed Lake Guntersville, and moved into southern DeKalb County.

Thunderstorm Wind in MOORE, TENNESSEE
From 10-APR-09 12:43:00 to 10-APR-09 12:48:00 (CST-6)
Location: LOIS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A kennel fence was reported blown over. Time was estimated from radar.

Hail in LINCOLN, TENNESSEE
From 10-APR-09 12:51:00 to 10-APR-09 12:56:00 (CST-6)
Location: FAYETTEVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nickel size hail was reported in Fayetteville.

Hail in FRANKLIN, TENNESSEE
From 10-APR-09 13:22:00 to 10-APR-09 13:27:00 (CST-6)
Location: WINCHESTER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny to nickel size hail was reported in Winchester.

Thunderstorm Wind in FRANKLIN, TENNESSEE
From 10-APR-09 13:28:00 to 10-APR-09 13:33:00 (CST-6)
Location: ASIA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Three cedar trees were blown down along the side of highway 64.

Thunderstorm Wind in LINCOLN, TENNESSEE
From 10-APR-09 13:05:00 to 10-APR-09 13:10:00 (CST-6)
Location: BELLEVIEW
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees and power lines were reported down at the intersection of Lincoln Road and Huntsville Highway.

Thunderstorm Wind in LINCOLN, TENNESSEE
From 10-APR-09 13:01:00 to 10-APR-09 13:06:00 (CST-6)
Location: BLEDSOE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees were blown down along Highway 231 about 15 miles north of Fayetteville.

Thunderstorm Wind in MOORE, TENNESSEE
From 10-APR-09 12:58:00 to 10-APR-09 13:03:00 (CST-6)
Location: HURDLOW
Magnitude: 56.00 EG
Property damage: 9.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple trees were reported blown down. Time was estimated from radar.

Thunderstorm Wind in FRANKLIN, TENNESSEE
From 10-APR-09 13:24:00 to 10-APR-09 13:29:00 (CST-6)
Location: BELVIDERE
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm winds tore apart the roof of a tin farm shed. Debris was blown onto highway 64.

Thunderstorm Wind in LINCOLN, TENNESSEE
From 10-APR-09 12:35:00 to 10-APR-09 12:40:00 (CST-6)
Location: BELLEVILLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A shed was blown down over near 971 Shelbyville Highway.  Time was estimated from radar.

Hail in FRANKLIN, TENNESSEE
From 10-APR-09 12:39:00 to 10-APR-09 12:44:00 (CST-6)
Location: BRANCHVILLE
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Public

Golf ball size hail fell at the McDonald's at 1410 Huntsville Highway in Fayetteville, TN.

Hail in FRANKLIN, TENNESSEE
From 10-APR-09 13:15:00 to 10-APR-09 13:20:00 (CST-6)
Location: ESTILL SPGS
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Public

Quarter size hail fell in the Estill Spring community.

Hail in LINCOLN, TENNESSEE
From 10-APR-09 12:33:00 to 10-APR-09 12:38:00 (CST-6)
Location: HOWELL
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Official NWS Observations

Cocorahs observer reported quarter size hail in the Howell community.

Hail in MOORE, TENNESSEE
From 10-APR-09 12:40:00 to 10-APR-09 12:45:00 (CST-6)
Location: LYNCHBURG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nickel hail was reported in Lynchburg.

Thunderstorm Wind in MOORE, TENNESSEE
From 10-APR-09 12:38:00 to 10-APR-09 12:41:00 (CST-6)
Location: COUNTY LINE
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Newspaper

Winds toppled trees on several homes on Cobb Hollow Road southwest of Tullahoma.

Thunderstorm Wind in MOORE, TENNESSEE
From 10-APR-09 12:43:00 to 10-APR-09 12:48:00 (CST-6)
Location: CUMBERLAND SPGS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

One tree was knocked down on a house on Oak Hills Drive. Nearby on Cobb Hollows Drive two trees were blown down. One on a second house and another on a car. Time estimated from radar.