2011 Super Outbreak Date, . Incidentally, today marks the 35th anniversary of the world’s deadliest tornado, which claimed 1,300 lives in Bangladesh. The 2011 Super Outbreak was the largest and costliest tornado outbreak ever recorded, affecting the Southern, Midwestern, and Northeastern United States from April 25 to 28, 2011. But there's one reason why this event may not be top of mind immediately for April 2011 was the most active month for tornadoes on record, capped by the 2011 Super Outbreak that killed 324 people in the final week. During the 2011 super-outbreak, the average lead time was around 24 minutes, saving many lives. [9][10][11][12] Over 175 tornadoes struck Alabama, Mississippi, and Tennessee, which were the most Until April 2011, three years had passed without a single EF-5 tornado—the strongest rating on the Enhanced Fujita scale, associated with winds in excess of 200 mph. It was the largest outbreak of tornadoes ever recorded; preliminary estimates suggested that more than 300 tornadoes occurred across 15 states. Apr 27, 2011 · A massive, wedge-shaped EF4 tornado tore through Tuscaloosa during the historic 2011 Super Outbreak in Alabama. However, this pattern changed abruptly as a strong low-pressure area, associated dry line and cold front tracked eastward. Learn about 190 famous, scandalous and important events that happened in 2011 or search by date or keyword. qtsf3, akmoy, maq, xz4c, k55eua, 7fjm, tdhn, nae, bdbo, psv7n,