This page documents the tornadoes and tornado outbreaks of 2011. Extremely destructive tornadoes form most frequently in the United States, Bangladesh, Brazil and Eastern India, but they can occur almost anywhere under the right conditions. Tornadoes also appear regularly in neighboring southern Canada during the Northern Hemisphere's summer season, and somewhat regularly in Europe, Asia, and Australia.
There were 1,706 tornadoes confirmed in the United States in 2011. It was the second most active year on record, with only 2004 having more confirmed tornadoes. 2011 was an exceptionally destructive and deadly year for tornadoes; worldwide, at least 571 people perished due to tornadoes: 12 in Bangladesh, two in South Africa, one each in New Zealand, the Philippines, Russia and Canada, and 553 in the United States (compared to 564 deaths in the prior ten years combined). Due mostly to several extremely large tornado outbreaks in the middle and end of April and in late May, the year finished well above average in almost every category, with six EF5 tornadoes and nearly enough total tornado reports to eclipse the mark of 1,817 tornadoes recorded in 2004, the current record year for total number of tornadoes.
The 553 confirmed fatalities marks the second-most tornadic deaths in a single year in U.S. history, behind only 1925 in terms of fatalities attributed to tornadic activity. Most of the damage and over two-thirds of the year's total fatalities were caused by a late-April Super Outbreak and an EF5 tornado that struck Joplin, Missouri in late-May.[4]
^"U.S. Annual Tornado Maps (1952–2011)". Storm Prediction Center. National Oceanic and Atmospheric Administration. Retrieved May 10, 2015.
^"United States Tornadoes of 2012" (PDF). Storm Prediction Center. Retrieved January 13, 2013.
^"Annual U.S. Killer Tornado Statistics". Storm Prediction Center. National Oceanic and Atmospheric Administration. Retrieved January 18, 2016.
^"US Annual Tornado Death Tolls, 1875–present". Norman.noaa.gov. March 1, 2009. Archived from the original on September 28, 2011. Retrieved October 5, 2011.
This page documents the tornadoes and tornado outbreaks of2011. Extremely destructive tornadoes form most frequently in the United States, Bangladesh...
related to 2011 Joplin tornado. Tornadoes portal United States portal Missouri portal Weather portal List of North American tornadoes and tornado outbreaks...
another in Ontario. These tornadoes were part of a major outbreak oftornadoes, the 2011 Super Outbreak, in which 360 tornadoes touched down across 21 states...
(05:00–05:00 UTC). Four of the tornadoes were rated EF5, which is the highest ranking on the Enhanced Fujita scale; typically these tornadoes are recorded no...
of F5 and EF5 tornadoes List oftornadoes in the 2011 Super Outbreak List of United States tornado emergencies "Plainview School unites after tornado"...
shear fueled a significant tornado outbreak from Texas to Tennessee; at least 64 tornadoes touched down on this day. An area of low pressure consolidated...
This is a list of the deadliest tornadoes in world history. This list includes confirmed individual tornadoes that caused 100 or more direct fatalities...
outbreak, of which 324 were tornado related. The outbreak largely contributed to the record for most tornadoes in the month of April with 773 tornadoes, almost...
Fujita scale. The scale ranks tornadoes from F0 to F5, with F0 being the least intense and F5 being the most intense. F5 tornadoes were estimated to have had...
2011, a total of six tornadoes touched down in both western Massachusetts and western Maine. The strongest was a long-track, high-end EF3 tornado that...
related to tornadoes in the state. Although less common and not as strong as tornadoes in the central United States, there are regularly tornadoes in three...
4 PM. THIS THUNDERSTORM HAS A HISTORY OF PRODUCING TORNADOES. SEVERE THUNDERSTORMS LIKELY PRODUCING TORNADOES ARE IMMINENT OR OCCURRING IN THE AREA....
biggest tornado outbreak on record—with 353 tornadoes for just 3+1⁄2 days (including four EF5 and eleven EF4 tornadoes)—occurred starting on 25 April 2011 and...
primary tornado and are not considered subvortices; the primary tornado and satellite tornadoes are considered to be separate tornadoes. The cause of satellite...
wingspan, designed to fly around tornadoes with an advanced auto-pilot system, and drop small probes into tornadoes. The first episode starts with the...
The following is a list oftornado events by year. List oftornadoes and tornado outbreaks List oftornadoes by calendar day "Storm Prediction Center WCM...
media related to Tornadoes. Wikimedia Commons has media related to Pictures oftornadoes. A tornado is a violently rotating column of air that is in contact...
active April 2011. Note: Two tornadoes have been officially confirmed but are not yet rated. Tornadoesof 2024 List of United States tornadoes from January...
saw mostly weaker tornadoes and no fatalities, with the notable tornadoesof the day being an EF2 tornado that tracked across parts of Texas and into Louisiana...
Xenia tornado. List of F5 and EF5 tornadoesTornadoesof 1974 T. Theodore Fujita (21–23 October 1975). "NEW EVIDENCE FROM APRIL 3-4, 1974 TORNADOES" (PDF)...
A tornado outbreak is the occurrence of multiple tornadoes spawned by the same synoptic scale weather system. The number oftornadoes required to qualify...
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