The April 25-28, 2011, Super Outbreak was one of the worst tornado outbreaks in U.S. history. Some 350 or so tornadoes — roughly 25 percent of which were strong/violent — scarred the landscape from April 25-28, 2011, in what has been dubbed the Super Outbreak of 2011. The Super Outbreak of 2011 included a total of three EF5 tornadoes with 12 EF4s and 21 EF3s. National Weather Service meteorologists completed the assessment of storm damage from this tragically historic day of tornadic activity and severe weather across Central Alabama on Wednesday, … Stay weather aware | Our national weather alerts page By … As part of a system which wreaked havoc across the eastern half of the United States (April 25-28), the following is an account of the tornado outbreak of April 27th, 2011, in Central Alabama. Super Outbreak of 2011, also called Tornado Super Outbreak of 2011, series of tornadoes on April 26–28, 2011, that affected parts of the southern, eastern, and central United States and produced particularly severe damage in the state of Alabama. The Super Outbreak of 2011 - the largest, costliest, and one of the deadliest tornado outbreaks in U.S. history - is about to begin. It claimed more than 300 lives, injured 2,775 and was responsible for $12 billion in … The April 25–28, 2011 Tornado Super Outbreak caused roughly $11 billion in damages and claimed the lives of an estimated 321 people. Some of the violent storms overlapped areas that … There were 321 people killed during this period, with 316 of those deaths coming on April 27 alone.