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.

Meteorological synopsis June 3

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.

A moderate risk of severe weather was issued by the Storm Prediction Center for parts of Indiana, Kentucky, Illinois, Ohio and West Virginia on June 3, Two particular tornadoes, rated EF2 and EF3 on the Enhanced Fujita Scale, caused extensive damage across portions of central Indiana. The EF3 tornado damaged 34 structures in Rush County, of which 27 of them were in Middletown. 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. A 19th century landmark covered bridge in Moscow was destroyed, as well as severe damage to dozens of homes, including some that were swept completely off the foundation. The EF2 tornado damaged 20 to 30 homes in Brown County, 40 buildings at Camp Atterbury in Johnson County and 59 buildings in Edinburgh.

June 4 A moderate risk of severe weather was issued for northern Kansas into southern Nebraska and from eastern West Virginia through Virginia, Maryland and Delaware. An ongoing line of thunderstorms moved east across West Virginia as the atmosphere began to destabilize. The thunderstorms resulted in a threat for isolated tornadoes in eastern sections of West Virginia, Virginia, Delaware and Maryland. In the central Great Plains region, a warm front extended northeast in northeastern Kansas from a surface low in central sections of Kansas. Strong instability occurred in the vicinity of the area as a result of surface heating. An intensifying low-level jet stream broke the cap in the region and resulted in the development of thunderstorms. During the afternoon, numerous thunderstorms formed across the Mid-Atlantic States. 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. EF1 tornadoes were produced in Culpeper, Clarke and Stafford counties in Virginia. Several other EF0 and EF1 tornadoes formed throughout the Great Plains region.

June 5

A strong jet stream moved northeast across the Great Plains region and a strong surface low in western Kansas strengthened as it moved to the Nebraska-South Dakota border. Ahead of the low, very warm and moist air spread throughout the South Central United States into Nebraska, eastern sections of South Dakota and the upper Mississippi Valley. The combination of strong winds and warm and moist air created conditions favorable for strong thunderstorms. On June 5, a high risk of severe weather was issued for six different states in the Midwestern United States, with a moderate risk area surrounding the high risk area. Forecasters had warned of a potentially historic outbreak, as computer forecasting models for June 5 resembled those on June 8, 1974, when 39 tornadoes struck the southern Great Plains and killed 22 people. Wichita State University canceled evening classes because of the weather predictions. Severe weather began developing across eastern Colorado and northwestern Kansas during the morning and into the early afternoon, producing several weak tornadoes in the process. An EF1 tornado impacted a campground near Kellogg, Iowa and injured two people. Despite extremely favorable conditions, severe weather for the day was limited and the tornadoes generally caused minimal damage.

June 6

During the morning hours of June 6, two strong tornadoes caused damage throughout Wadena and Hubbard counties in Minnesota. The first tornado, rated EF2 on the Enhanced Fujita Scale, touched down south of Stocking Lake and downed several trees onto cabins, vehicles and storage sheds. It also toppled an irrigation system in a field north of the lake. The tornado moved to the north and expanded to its maximum width of and reached estimated peak winds of . Eight turkey barns were destroyed, killing an estimated 15 to 20 thousand turkeys. The tornado swept a home north of the area in Hubbard County off its foundation, as well as causing damage to several homes along with hundreds of acres of forest. One man working at a turkey barn was injured. The storm then produced an EF3 tornado, which eventually grew to a width of and reached wind speeds of . At Pickerel Lake, it nearly flattened every tree in the area, while destroying a trailer home, a camper, a garage and a house. 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.

June 7–8

A series of impulses moved from the central Rocky Mountains into the central Great Plains. Opulent moisture formed over the Missouri and Mississippi Valleys with dew points reaching near . Strong low level winds over the area created favorable wind shear for supercells. 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 4:21 pm (2121 UTC), an EF0 tornado occurred east of Cornell in Livingston County. The tornado occurred in an open field with no damage observed. At 4:31 pm CDT (2131 UTC), an EF1 tornado touched down southwest of Dwight in Livingston County, snapping power poles and damaging trees and roofs; this tornado lifted at 4:45 pm CDT (2145 UTC). From 5:18 pm CDT (2218 UTC) to 5:46 pm CDT (2246 UTC), an EF2 tornado traveled across southwestern Will County and extreme northwestern Kankakee County, near Wilmington, uprooting trees, damaging homes and destroying sheds. 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. From 5:55 pm CDT (2255 UTC) to 6:08 pm CDT (2308 UTC), a high end EF2 tornado occurred west of Monee, leveling barns, garages, and outbuildings and damaging homes.

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 moved into University Park, Illinois destroying a warehouse, completely leveling a portion of the building. As the tornado moved into Richton Park, much of Southern Cook County, including parts of Chicago were under a tornado warning. The tornado produced extensive EF2 damage to homes and commercial properties in Richton Park, an apartment building had its roof completely torn off and a car wash was severely damaged. 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). At approximately 6:32 pm CDT (2332 UTC), an EF1 tornado hit Chicago Heights, causing minor damage to several homes, with two homes sustaining significant damage. At 6:49 pm CDT (2349 UTC), an EF0 tornado touched down in Lansing, damaging tree limbs.

In Wisconsin, five people suffered minor injuries after an EF2 tornado went through Columbia County. This tornado is the fifth widest in American history.More Than Two-Mile-Wide Mississippi Easter Tornado, One of Largest Ever Documented in U.S., Was State's Widest on Record, The Weather Channel, April 16, 2020 Further west, a new complex of storms produced two tornadoes inside the Omaha metropolitan area during the early hours of June 8. A total of 539 homeowners reported damage from the tornadoes. Seven homes were destroyed and 21 others sustained major damage. The two tornadoes that hit the region were rated EF1 and EF2. The EF2 tornado was the strongest to strike the Omaha metropolitan area since 1975.

June 11 A storm system moved to the northern and central Great Plains region during the day, as strong winds helped push a moist air mass northward ahead of the system. Thunderstorms developed during the afternoon ahead of a cold front from southeast South Dakota into central Kansas. Strong winds along with instability in the atmosphere created favorable conditions for supercell development with the potential to produce strong tornadoes. At approximately 6:35 pm CDT (2335 UTC) a tornado hit the Little Sioux Scout Ranch in Little Sioux, Iowa, killing four Boy Scouts after a chimney collapsed on them and injuring 48 others. The camp received a tornado warning 12 minutes before it struck. There were 93 campers and 25 staff members at the camp. The campers were between 13 and 18 years old and were attending a leadership training camp. The tornado was rated EF3 on the Enhanced Fujita Scale.

Tornadoes also caused major damage in Kansas. In Chapman, one person was killed and three others were critically injured after an EF3 tornado struck the town. About 80 percent of Chapman suffered serious damage, with minor damage occurring to the downtown area. 70 homes in Chapman were destroyed with 215 receiving damage. Two churches were demolished and the town's elementary, middle and high schools were severely damaged. Manhattan was also heavily impacted by a tornado that was rated EF4 on the Enhanced Fujita Scale. Forty-five residences in Manhattan were destroyed, as well as two mobile homes and three businesses. An additional 67 residences, three multi-family homes, one mobile home and 10 businesses suffered significant damage. Also, 75 single-family residences, three multi-family structures and 20 businesses sustained minor damage, and 637 residences, 93 multi-family structures, 20 mobile homes and 10 businesses were partially affected. An elementary school was also heavily damaged in Manhattan. There was also damage to Kansas State University, where the Wind Erosion Lab was damaged. Also suffering severe damage was the engineering complex, the Sigma Alpha Epsilon fraternity house, Waters, Call and Cardwell halls as well as Ward Hall, which houses the university's nuclear reactor. One person was also killed near the town of Soldier in Jackson County from an EF2 tornado. 32 homes were damaged in Jackson County. The southern outskirts of Salina near the junction of Interstate 135 was also hard hit by an EF3 tornado. Several homes, outbuildings, trees and power lines were damaged in the area.

Confirmed tornadoes

Note: Four tornadoes in Canada were rated according to the Fujita scale, but are included in the table using their corresponding number rating.

Little Sioux, Iowa