June 2008 tornado outbreak sequence

Tornado outbreak sequence of June 3–11, 2008

A large wedge tornado in Will County, Illinois on June 7.
Type	Tornado outbreak
Duration	June 3–11, 2008
Tornadoes confirmed	192 confirmed
Max rating1	EF4 tornado
Duration of tornado outbreak2	8 days, 16 hours, 17 minutes
Damage	$146.9 million (2008 USD)
Areas affected	Central and Eastern United States
1Most severe tornado damage; see Enhanced Fujita scale 2Time from first tornado to last tornado

¹Most severe tornado damage; see Enhanced Fujita scale

The tornado outbreak sequence of June 3–11, 2008 was a series of tornado outbreaks affecting most of central and eastern North America from June 3–11, 2008. 192 tornadoes were confirmed, along with widespread straight–line wind wind damage. Seven people were killed from a direct result of tornadoes; four in Iowa, two in Kansas, and one in Indiana. Eleven additional people were killed across five states by other weather events including lightning, flash flooding, and straight-line winds. Severe flooding was also reported in much of Indiana, Wisconsin, Minnesota and Iowa as a result of the same thunderstorms, while high heat and humidity affected much of eastern North America; particularly along the eastern seaboard of the United States from New York City to the Carolinas.

Several clusters of thunderstorms developed during the morning from eastern Nebraska across Iowa into Illinois, taking place along a warm front. The front remained over the same areas during the day, as daytime heating and southwesterly surface winds brought warm and unstable air northward, resulting in severe weather development. The presence of strong winds aloft aided in development of multiple clusters and lines of thunderstorms that produced damaging wind, hail and tornadoes across Missouri, Illinois and Indiana.