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In Alabama alone, 238 tornado-related deaths were confirmed by the Storm Prediction Center (SPC) and the state's Emergency Management Agency. [2] [11] April 27's 316 fatalities were the most tornado-related fatalities in the United States in a single day since the " Tri-State " outbreak on March 18, 1925 (when at least 751 people were killed).
It was the largest tornado outbreak in central Alabama since April 27, 2011. A total of 57 tornadoes were confirmed during the outlook period; one was rated EF4. This is the last occurrence of back to back high risk days for at least a decade (continuing as of May 2024; and three consecutive high risk days have not occurred in 25 years, since ...
During the late afternoon and early evening of April 27, 2011, a violent, high-end EF4 multiple-vortex tornado destroyed portions of Tuscaloosa and Birmingham, Alabama, as well as smaller communities and rural areas between the two cities. It is one of the costliest tornadoes on record, and was one of the 360 tornadoes in the 2011 Super ...
During the afternoon of April 27, 2011, a violent EF5 tornado touched down in eastern Mississippi, killing three people. Part of the historic 2011 Super Outbreak, the largest tornado outbreak on record, this was the first of four EF5 tornadoes to touch down that day and the first such storm in Mississippi since the 1966 Candlestick Park tornado.
Outlook Region Date 316 Super Outbreak: Southeastern U.S. April 27, 2011 57 Carolinas tornado outbreak: Southeastern U.S. March 28, 1984 48 Super Tuesday tornado outbreak: Middle Mississippi River Valley: February 5, 2008 46 Oklahoma tornado outbreak: Central U.S. May 3, 1999 41 Tornado outbreak of March 2–3: Ohio River Valley: March 2, 2012
The Storm Prediction Center issues convective outlooks (AC), consisting of categorical and probabilistic forecasts describing the general threat of severe convective storms over the contiguous United States for the next six to 192 hours (Day 1 through Day 8). These outlooks are labeled and issued by day, and are issued up to five times per day.
During the late afternoon of April 27, 2011, a catastrophic EF5 tornado struck northeast Alabama, part of the historic 2011 Super Outbreak, the largest tornado outbreak ever recorded. The tornado remained on the ground for 36 minutes, carving a path 36.63 miles (58.95 km) long through DeKalb County, causing 25 deaths, many injuries, and an ...
2Time from first tornado to last tornado. From May 21 to May 26, 2011, one of the largest tornado outbreaks on record affected the Midwestern and Southern regions of the United States. A six-day tornado outbreak sequence, most of the tornadoes developed in a corridor from Lake Superior southwest to central Texas, while isolated tornadoes ...