Tornado outbreak sequence of June 3–11, 2008

Eleven additional people were killed across five states by other weather events including lightning, flash flooding, and straight-line winds.

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.

Eight people were injured in Rush County, including a 67-year-old woman who was impaled in the chest by a large tree limb and later died as a result of her injury on August 17.

[5] A 19th century landmark covered bridge in Moscow was destroyed,[6] as well as severe damage to dozens of homes, including some that were swept completely off the foundation.

An EF0 tornado was produced from one of the thunderstorms that impacted portions of Chesapeake Beach, tearing off sections of roof and siding from 10 to 20 single family homes.

Despite extremely favorable conditions, severe weather for the day was limited and the tornadoes generally caused minimal damage.

The tornado moved to the north and expanded to its maximum width of 450 yards (410 m) and reached estimated peak winds of 130 miles per hour (210 km/h).

[18] The storm then produced an EF3 tornado, which eventually grew to a width of 400 yards (370 m) and reached wind speeds of 160 miles per hour (260 km/h).

At northern sections of Pickerel Lake, one home had its roof torn off and numerous trees were snapped onto other residences and farm buildings.

The tornado began to lose its intensity but continued to topple trees, damage storage structures and toss debris before dissipating in Emmaville.

[19] During the afternoon, a supercell developed in western portions of Illinois and moved northeast reaching Lake Michigan around the Illinois-Indiana border in the Chicago metropolitan area, during which it produced eight tornadoes along its path.

At 5:51 pm CDT (2251 UTC), an EF2 tornado touched down for three minutes in central Will County near Wilton Center, destroying a garage and severely damaging a metal building.

An EF2 tornado re-formed at 6:13 pm CDT (2313 UTC) near the intersection of Ridgeland Avenue and Dralle Road, destroying two buildings, taking down four high voltage power poles, and injuring six people as it crossed Interstate 57.

The tornado then skirted through Park Forest uprooting trees, before dissipating near the intersection of Lincoln Highway and Western Avenue at 6:30 pm CDT (2330 UTC).

[23] Further west, a new complex of storms produced two tornadoes inside the Omaha metropolitan area during the early hours of June 8.

The storm tracked northeast and crossed the Missouri River and Interstate 29 near mile marker 97, continuing into Harrison county Iowa.

In Monona county the tornado entered the Little Sioux Scout Ranch, destroying the rangers home near the entrance of the park giving it a rating of EF3.

Four scouts: Sam Thomsen, Ben Pertzkilla, Josh Fennen and Aaron Eilerts, were killed in one bunk house when a brick chimney collapsed on them.

The tornado hit another farmstead about 2.5 miles (4.0 km) southwest of Moorhead where trees were blown down and sheds damaged.

[50] On June 3, the communications tower at a courthouse in Shelbyville, Missouri was struck by lightning, damaging computers for the 911 system and the sheriff's office, radio consoles, and various other electronic equipment.

[54] Washington Monument State Park suffered extensive damage after thunderstorms knocked out phone, electricity, and water service.

[60] Two people were killed in Ottawa County, Michigan due to the straight-line winds that toppled trees; one onto a pedestrian and another onto a car.

[62][63] On June 10, a powerful squall line of thunderstorms with embedded supercells developed across New York and moved northeast through parts of northern New England and Quebec.

[70] The severe weather extended south into the Eastern Seaboard of the United States where it ended a prolonged period of intense heat.

Over 10 inches (25 cm) fell in areas over the course of a week, and in Indiana some rivers approached levels similar to flooding in 1913 which killed 200 people.

Thirty thousand people in Indiana lost power during the storms, and several counties filed disaster declarations.

[74] Beginning on June 8, flooding also started occurring across parts of Iowa following several round of thunderstorms and heavy rains.

[79] Many other towns across the state became flooded as well as the rising water levels slowly made their way into the Mississippi River across southeastern Iowa, western Illinois and northeastern Missouri.

[80] Flooding was also reported north of Mason City in southeastern Minnesota, where several inches of rain closed roads and forced evacuations.