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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 ...
EF4 tornado: Duration of tornado outbreak 2: 2 days, 16 hours, 37 minutes: Largest hail: 4.50 in (11.4 cm) in diameter in Randolph, Kansas, on April 15: Fatalities: 6 fatalities, 101 injuries. [2] Damage: At least $500 million (in Wichita, unknown elsewhere) [1] 1 Most severe tornado damage; see Enhanced Fujita scale 2 Time from first 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]
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.
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 ...
The 2012 Leap Day tornado outbreak was a significant and deadly tornado outbreak on February 28 and February 29, 2012. It is so called because the second day was a leap day. It caused severe damage in several regions, especially the Great Plains and Ohio Valley regions. It also resulted in several tornadoes in the Central Plains, a rarity for ...
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.
Tornado outbreak of March 2–3, 2012 – A high risk was issued at 13Z on the first day of the aforementioned outbreak for a 30% probability of significant tornadoes. A total of 64 tornadoes were confirmed; two were rated EF4, both of which were produced by the same supercell, which also produced an EF3 tornado, all within the High Risk area.