This is a list of all tornadoes that were confirmed by local offices of the National Weather Service in the United States from January to March 2011. Based on the 1991–2010 average, 35 tornadoes touch down in January, 29 touch down in February and 80 touch down in March. These tornadoes are commonly focused across the Southern United States due to their proximity to the unstable airmass and warm waters of the Gulf of Mexico, as well as California in association with winter storms.
A tornado outbreak that began at the end of December 2010 extended into January 1 and multiple strong tornadoes touched down that day. However, the rest of the month was generally quiet, and the month finished below average with only 16 tornadoes. Tornado activity in the first three weeks of February were also quiet, but two large outbreaks at the end of the month pushed it well above average with 68 tornadoes confirmed. There were no large outbreaks in March, but steady activity throughout the month led to a total 75 tornadoes, which was close to average.
Notes.
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References.
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