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The 2011 Atlantic hurricane season was the second in a group of three very active Atlantic hurricane seasons, each with 19 named storms, tied with 1887, 1995, 2010, and 2012. The above-average activity was mostly due to a La Niña that persisted during the previous year .
The 2011 Atlantic hurricane season was an event in the annual hurricane season in the north Atlantic Ocean. It was well above average, with 19 tropical storms forming. [nb 1] Even so, it was the first season on record in which the first eight storms failed to attain hurricane strength.
On April 10, a large line of severe storms produced damage from northern Minnesota southward to the Texas-Mexico border. Most damage along this line resulted from straight-line winds; however, Wisconsin , 2 to 2.5 in (5.1 to 6.4 cm) diameter hail in La Crosse broke windows, dented cars and damaged homes. [ 69 ]
2011 Joplin tornado; 2011 Super Outbreak; 2011 El Reno–Piedmont tornado; Tornado outbreak of April 9–11, 2011; Tornado outbreak of April 14–16, 2011; Tornado outbreak sequence of April 19–24, 2011; 2011 St. Louis tornado; List of tornadoes in the 2011 Super Outbreak; 2011 Hackleburg–Phil Campbell tornado; 2011 Tuscaloosa–Birmingham ...
The 2011 Super Outbreak was the largest, costliest, and one of the deadliest tornado outbreaks ever recorded, taking place in the Southern, Midwestern, and Northeastern United States from April 25 to 28, 2011, leaving catastrophic destruction in its wake.
2 Only systems that formed either on or after January 1, 2011 are counted in the seasonal totals. 3 Only systems that formed either before or on December 31, 2011 are counted in the seasonal totals. 4 The wind speeds for this tropical cyclone/basin are based on the IMD Scale which uses 3-minute sustained winds.
[9] [5] The National Hurricane Center followed 19 tropical storms in the Atlantic Ocean, 10 becoming hurricanes, as well as 11 tropical storms in the eastern Pacific Ocean, 7 becoming hurricanes. In July, Hurricane Dora became the year's strongest tropical cyclone in the western hemisphere, with 1 minute sustained winds of 250 km/h (155 mph).
Part of the 2011 Super Outbreak and Tornadoes of 2011 During the late afternoon and early evening of April 27, 2011, a violent, high-end EF4 multi-vortex tornado known as the Tuscaloosa-Birmingham tornado or the Tuscaloosa tornado , destroyed portions of Tuscaloosa and Birmingham, Alabama , as well as smaller communities and rural areas between ...