Mid-October 2007 tornado outbreak
EF3 damage in Nappanee, Indiana on October 18, 2007
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| Type | Tornado outbreak |
|---|---|
| Duration | October 17–19, 2007 |
| Tornadoes confirmed | 63 |
| Max rating1 | EF3 tornado |
| Duration of tornado outbreak2 | ~40 hours |
| Damage | $54.2 million (2007 USD) |
| Casualties | 5 deaths, 28 injuries |
| Areas affected | Central and Southern United States |
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1Most severe tornado damage; see Enhanced Fujita scale 2Time from first tornado to last tornado |
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1Most severe tornado damage; see Enhanced Fujita scale
The Mid-October 2007 tornado outbreak was a widespread tornado outbreak that took place across much of the eastern half of North America starting on October 18, 2007 and continuing into the early hours of October 19. The outbreak was also responsible for five deaths; three in Michigan and two in Missouri, plus many injuries (including some from non-tornadic events). At least 64 tornadoes were confirmed including 16 on October 17 across six states including Texas, Oklahoma, Arkansas, Louisiana, Mississippi and Missouri with wind damage reported in Oklahoma, Kansas, Illinois, Iowa, Arkansas and Mississippi. On October 18, at least 48 tornadoes were confirmed across eight states including Florida, Alabama, Mississippi, Tennessee, Kentucky, Illinois, Indiana and Michigan, plus widespread straight line wind damage. Until 2010, this event held the record for largest tornado outbreak ever recorded in the month of October according to NOAA.
A deep low pressure system (with a pressure of 977 mbar at its peak) moved across the Pacific Coast on October 15 and then crossed the Rockies during the following day and touched out some moist air from the Gulf of Mexico, major source for storm development and intensification. Not part of the main outbreak, 3 tornadoes were reported, during the overnight hours of October 16 towards October 17, across Randall County, Texas south of Amarillo on October 16 with 1 of them confirmed as a high EF1. That tornado caused damage to trees, fences, power poles, steel pipes, trailers and barns.
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