Derecho & Tornadoes - May 3, 2009
Event Summary for Central Alabama
A derecho moved across Central Alabama on Sunday afternoon. A derecho is a widespread and long-lived straight line wind storm associated with a fast moving squall line. A derecho can produce a long-lived gust front which causes straight line wind damage with winds over 58 mph. The derecho on Sunday produced damage in several counties from the Mississippi state line to the Georgia state line.
In addition to the derecho, a few supercell thunderstorms developed just ahead of the squall line. Supercell storms are persistently rotating thunderstorms that produce all types of severe weather. A few tornadoes developed within these supercells.
Our thoughts will be with all those whose lives were impacted by these storms.
Preliminary Local Storm Reports
Public Information Statement
Severe Thunderstorm Watch 233 was in effect from 1135 am CDT until 500 pm CDT.
Severe Weather Episode Data