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The year began with an unusual number of tornadoes during January 2012. The first major tornado outbreak occurred on January 22–23, when a spring-like system moved across the southern Mississippi valley, producing at least two dozen confirmed tornadoes across Arkansas, Kentucky, Mississippi, Tennessee, and Alabama. As a whole, January was the ...
February 2012 was more active than normal in terms of the number of tornadoes, with a total of 50 confirmed. While the first three weeks of the month were unusually quiet, the pattern changed abruptly with a major tornado outbreak, which struck the region less than 72 hours prior to this storm, killing 15 people, including 8 in Harrisburg, Illinois alone, the result of an EF4 tornado.
In late 2023, American meteorologist and tornado expert Thomas P. Grazulis created the Outbreak Intensity Score (OIS) as a way to rank tornado outbreaks. [1] [2] For the score, only significant tornadoes are counted: F2/EF2 tornadoes receive 2 points each, F3/EF3 tornadoes receive 5 points each, F4/EF4 tornadoes receive 10 points each, and F5/EF5 tornadoes receive 15 points each. [1]
One of these tornadoes was an EF3 tornado which struck areas of Forney, Texas, damaging or destroying multiple homes and businesses; this tornado would be the strongest confirmed during the outbreak. However, the costliest tornado was of EF2 intensity, and struck the counties of Ellis and Dallas, causing roughly $400 million in damages and ...
A tornado struck Fort Zumwalt North High School where it downed several trees, blew debris onto the tennis court, broke the window out of a nearby truck, knocked over a set of standalone aluminum bleachers at the football field, and blew soccer goals against a line of trees. It then left the high school property and knocked down several more ...
Numerous trees were snapped. This tornado came from the same storm that produced the Ligioner tornado. EF0: Pleasantville: Bedford: 2218 1.5 miles (2.4 km) A brief tornado occurred within a larger area of straight-line winds near Allum Bank.
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The Tornado outbreak sequence of March 18–24, 2012 was a long lasting tornado outbreak that occurred due to a slow moving, but powerful trough and cutoff low. The outbreak began in the Great Plains , where, over a two-day period, several tornadoes touched down, some of which were significant.