April 10, 2009 Severe Weather

Preliminary Storm Survey Information
 

A storm survey has been completed examining storm damage that occurred in the early morning hours on Friday, April 10th.  All tornado ratings use the Enhanced Fujita Scale.


Marshall County, AL
Rating EF-0 Peak Wind 80 mph
Path Length 1.9 miles Peak Path Width 200 yards

A weak tornado touched down in the Martling/Asbury community just west of Martling Road around 538 AM. It tracked east across Martling Road, Bell Orr Drive, and Claude Hill Road before weakening and lifting near Asbury Church Road. Along the path, several trees were uprooted, and a few were snapped. The tornado peeled much of a metal roof off a barn along Martling road, scattering the metal several yards away into the nearby field. Along Claude Hill road, a few homes received minor roof damage. At least two small sheds were heaviley damaged in the same area.


Pictures
Below are some pictures that were taken during our damage surveys. Click any image for the a larger resolution version.

The roof of this barn off Martling Road was damaged near the beginning of the tornado path.
The roof of this barn off Martling Road was damaged near the beginning of the tornado path.
Damage was sustained by an outbuilding at this house off Claude Hill Road.
Damage was sustained by an outbuilding at this house off Claude Hill Road.


Radar Data

This National Weather Service radar image from 3:48pm shows a broad area of circulation south of Leighton near the Whiteoak community. This tornado was likely the result of a non-descending mesocyclone. This means the circulation developed closer to the ground than most storms. Because the Columbus AFB radar is nearly 70 miles away, the stronger circulation occurred below the radar beam. This is a perfect example of why storm spotters are an integral part of National Weather Service warning operations. The base reflectivity product in the left panel shows rainfall intensity. The storm relative velocity product in the right panel shows winds toward (in green) and away (in red) from the radar near Columbus AFB, MS.
This National Weather Service radar image from 5:38am shows an area of rotation east-northeast of Guntersville, near the Martling/Asbury community. The base reflectivity product in the left panel, which shows rainfall intensity, shows a line of showers and thunderstorms moving across northeast Alabama. The storm relative velocity product in the right panel shows winds toward (in green) and away (in red) from the radar at Hytop.

 


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