Tornado Data: April 24th, 2010

Marshall and DeKalb Counties (Albertville, Geraldine)

A final survey of the storm damage that occurred across DeKalb and Marshall Counties has been completed by the National Weather Service, the Marshall and DeKalb County’s Emergency Management Agencies, and the Alabama Emergency Management Agency.

Rating	EF-3	Peak Wind	140 mph
Path Length	41.0 miles	Peak Path Width	3/4 mile

Summary: The tornado touched down 4 miles northeast of Brooksville in Blount county around 9:59 PM CDT. It then moved northeast into southern Marshall county. The most significant and widespread damage along it's path occurred in the city of Albertville between 10:27 PM CDT and 10:40 PM CDT. Damage to numerous residences, the Albertville high school, and several large retail buildings occurred. Extensive tree damage was also observed throughout the damage path. In the town of Geraldine, numerous large trees were snapped or uprooted which also led to some structural damage to residences. This was noted along county road 227 and 52, just southeast of highway 75. The tornado lifted near thePine Ridge community just west of Fort Payne around 11:05 PM CDT. The path length of this tornado is estimated at 41 miles with a maximum path width of 3/4 of a mile. Maximum winds associated with this tornado were 140 mph, which is EF-3 tornado intensity.

The map below details the tornado path and timing along certain sections. The same storm produced another tornado of EF-3 intensity further to the northeast in DeKalb County, Alabama and Chattooga County, Georgia (noted by the second segment just south of Valley Head, Alabama). Click on the map for a larger version.

Tornado path from Blount County, Alabama through Chattooga County, Georgia. Click on the map for a larger version.

Radar Data
This National Weather Service radar loop between from 10:14pm through 10:56pm shows a rotating supercell thunderstorm moving across southern Marshall and southern DeKalb Counties. The circulation couplet (noted best by the velocity imagery on the left) began southwest of the city of Albertville and moved to the northeast into southern DeKalb County. The circulation shows some signs of weakening after passing further into DeKalb County. Although, the storm does strengthen further upstream in the Mentone area. The storm relative velocity product in the left panel shows winds toward (green) and away (red) from the radar at Hytop, AL. Click on the image below to observe the loop.

Damage Pictures

An aerial view of damage to the Foodland grocery store and adjacent buildings in downtown Albertville.	Alleyway behind Foodland grocery, showing roofing material blown behind the store.
Damage to one of the concrete light poles at the high school football stadium. Another light pole on the other side of the stadium also collapsed.	The downtown library was spared the worst damage, but still suffered the loss of one of the column supports.
Damage to A&H Equipment Co near downtown Albertville.	This house was removed from the foundation and completely demolished near Jackson/Broad Streets in downtown Alberville. Another small house adjacent (but not pictured) suffered similar damage.
This view down Draper Street near downtown Albertville was typical of damage seen along the tornado path.	A view down Section Line Road.
This house on Linda Street suffered significant damage, with trees nearby uprooted, and snapped.	Tree fell on this house and car on the corner of Draper and Brown.