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Thunderstorm Wind in St. Clair County, Alabama

Thunderstorm Wind April 27, 2011 · St. Clair County, Alabama

90 mph
Estimated gust (78 kt)
1
Death

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Storm damage to the east of Moody was found to be consistent with straight-line winds, with peak wind gusts estimated between 80 and 100 mph. A broad swath of enhanced damage was found in a largely wooded area a couple miles northeast of the Brompton community. In this area, numerous trees were snapped off and uprooted. One tree fell onto a mobile home, fatally injuring one of its occupants. Several other buildings received varying degrees of damage, both directly from the wind and as a result of trees being blown on top of them.

The wider storm

A powerful storm system crossed the Southeast United States on Wednesday, April 27, 2011, resulting in a large and deadly tornado outbreak. This epic event broke the record for number of tornadoes in a day for the state of Alabama, becoming the most significant tornado outbreak in the state's history.

Central Alabama had two rounds of severe weather that day. During the early morning hours, a Quasi-Linear Convective System quickly moved across the northern half of the National Weather Service, Birmingham county warning area. Straight line winds of 90 mph (78kts) or greater and 11 tornadoes lead to widespread damage and power outages. During the afternoon, long-lived supercell thunderstorms produced long-track, strong and violent tornadoes. Destruction and loss of life across many towns and communities was devastating.

The hardest hit areas included Shottsville and Hackleburg, both in Marion County, where winds of 160 mph and 210 mph respectively, caused unimagineable damage. Cordova, in Walker County, was hit twice; by a tornado along the Quasi-Linear Convective System during the early morning hours and again in the afternoon by a long-track EF4 tornado. A long track tornado moved across the city of Tuscaloosa and the western suburbs of Birmingham, resulting in the complete destruction of whole neighborhoods and numerous injuries and fatalities in those heavily populated areas. The same parent supercell produced another violent tornado in east Central Alabama as it tracked across St. Clair and Calhoun Counties, resulting in additional fatalities and incredible damage to a number of neighborhoods. Another violent EF4 tornado tracked across portions of Elmore and Tallapoosa Counties, including Lake Martin, destroying numerous homes and a large section of a mobile home park.

Most of the violent tornadoes from this day were captured on video by a number of people, including storm spotters and chasers, as well as numerous television news crews and remotely controlled web-enabled video cameras. This allowed unprecedented coverage and viewing of this historic event in real time from people worldwide.

Began near Acmar (33.6056, -86.4384).

Other tornadoes from the same storm system

27 more tornadoes the National Weather Service filed under this storm episode.

Source: NOAA Storm Events Database, event 312739. Narratives are written by the National Weather Service forecast office that issued the report.

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