EF4 Tornado — Dekalb, Alabama
2011-04-27 · near Ider, Dekalb, Alabama
Event narrative
A violent tornado continued its wide path of violent destruction across the northern tip of DeKalb County in the Shiloh community. The tornado killed 6 people in this area (12 total along its path across Jackson and DeKalb counties). Several cinder block foundation homes and mobile homes were completely destroyed or swept away. In addition, thousands of large trees were sheared off toward the base. An older two-story and fairly well-built log cabin home was destroyed. The top story of this home was lifted off, moved about 20 yards and twisted 180 degrees. The lower story collapsed and was shifted off its foundation. A senior citizen van was lofted and dropped into a field nearly 400 yards away. At least 3 chicken barns collapsed with a high loss of livestock noted. The tornado crossed into Dade County Georgia with a 1/4 to 1/2 mile wide path along County Road 155 north of Highway 75.
Wider weather episode
A powerful storm system roared across the Southeast United States on Wednesday, April 27, 2011. In the wake of this system, hundreds of people were left injured and/or homeless, along with approximately 100 people who lost their lives in the northern Alabama area alone. Some of the devastation was literally unimaginable with countless homes, neighborhoods and even portions of cities or towns either partially or completely destroyed. This storm system would be responsible for one of the largest and deadliest tornado outbreaks to ever impact much of the southeastern region.
The powerful storm system that affected the National Weather Service, Huntsville service area would actually occur in three separate waves of severe weather that day. The first occurred during the early morning hours of April 27, 2011 roughly between the hours of 2 AM and 8 AM CDT, while the second occurred during the late-morning to early afternoon period. The third and most devastating wave occurred during the afternoon hours on Wednesday, with some of the most violent and destructive tornadoes to affect the central Tennessee Valley area in recent decades.
The worst areas impacted by these storms included the towns of Phil Campbell and Oak Grove in eastern Franklin County Alabama, Mt. Hope in western Lawrence County and the Tanner Community in eastern Limestone County. Along a line connecting these areas tracked an EF5 tornado with peak winds around 210 mph, the strongest and most violent on the Enhanced Fujita Scale.
Other areas impacted by the storms include the city of Cullman, where extensive damage occurred to buildings in the downtown area, and to the town of Fairview, both of which are located in Cullman County. Downstream, further significant damage occurred to the Ruth and Oak Grove communities in Marshall County. In addition, the communities of Rainsville and Sylvania along with the towns of Henagar and Ider in DeKalb County were severely impacted. Fatalities in DeKalb County alone numbered at least 33 people. Furthermore, the towns of Flat Rock, Higdon and Pisgah in Jackson County sustained incredible damage. The tornadoes that affected these areas were rated as an EF4 with maximum winds near 190 mph.
In most of these areas alone, numerous people lost their lives. These represent just several of the communities and towns impacted by the events of April 27, 2011. While the majority of the analysis and survey work conducted by the National Weather Service, Huntsville and its partners have been completed, there will undoubtedly be countless research studies conducted by both academia and operational personnel in order to further evaluate and understand the complex processes associated with this near unprecedented severe weather outbreak.
View location on OpenStreetMap → (34.8200, -85.6314)
Source: NOAA Storm Events Database, event_id 301929. Narrative written by the NWS forecast office that issued the report.