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Summary:

An aerial survey from local media showed clear convergent swirling and scarring near Earlville. A short lived tornado touched down embedded within a larger area of straight-line wind damage. Numerous trees were blown down with damage to roofs and a garage blown out on the south and southwest portions of town. Maximum winds were estimated to 110 mph.

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Summary:

Concentrated damage was found at two farmsteads, including the destruction of an outbuilding and large trees snapped at their bases. Maximum winds were estimated to 100 mph.

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Summary:

An NWS storm survey team determined via an aerial survey that a tornado touched down over mainly fields north of Morris. Maximum winds were estimated to 85 mph.

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Summary:

This tornado caused damage to trees and residences between Plainfield and Romeoville. Over 50 trees, including many large softwood trees, were uprooted within a concentrated path. A dozen modest to large trees were blown to the northwest against the eastward path of the storm. Numerous roads were blocked due to fallen trees. There was minor damage to numerous residences in the Woodlands of the Reserve and Lakewood Falls subdivisions. This damage mainly included peeled off siding and shingles, along with blown out windows. The tornado crossed I-55 near mile marker 261. The tornado was embedded within a larger area of straight-line wind damage. Maximum winds were estimated to 95 mph.

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Summary:

This tornado started near the intersection of E. 6000N Rd and N. County Highway 51. Roof damage was done to a barn along with numerous trees snapped and uprooted. The tornado ended along County Highway 13. Maximum winds were estimated to be 90 mph.

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Summary:

This tornado touched down near N. 5000E Rd and ended near N 8000E Rd. It snapped a wooden power pole and damaged corn along its path. Maximum winds were estimated to 85 mph.

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Summary:

This tornado began near 10000N Rd and ended near a farmstead along N. 8000E Rd. A large machine shed was heavily damaged, and trees were snapped and uprooted. Maximum winds were estimated to 95 mph.

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Summary:

This tornado began near a farmstead on N. 8000E Rd and would end near the intersection of 9000N Rd and N. 11000E Rd. A barn was destroyed, a 4,000 lb. trailer moved 50 feet, and numerous hardwood trees were snapped and uprooted. Maximum winds were estimated to 105 mph.

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Summary:

This tornado started near the intersection of 11000N Rd and N 8000E Rd. A large shed was destroyed with all of its posts and several anchors to the posts pulled from the ground. There was also minor buckling of a house's foundation, numerous trees snapped and uprooted, a snapped wooden power pole, and damage to corn crops. The tornado dissipated near Illinois Highway 1. Maximum winds were estimated to 110 mph.

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Summary:

This tornado began north of Momence along Illinois Highway 17, crossed the Illinois-Indiana state line and tracked near 241st Ave. in Indiana. The tornado then passed through the far south end of the town of Schneider and ended near the Kankakee River southwest of Shelby. Damage was done to a roof of a barn along with numerous hardwood trees snapped and uprooted. Maximum winds were estimated to 110 mph.

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Summary:

This tornado that began near the intersection of 11000N Rd and Slaughter House Rd damaged a greenhouse and brought roof damage to a house, along with snapping large tree limbs. The tornado ended near County Highway 13. Maximum winds were estimated to 75 mph.

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Summary:

This strong tornado touched down slightly north of the intersection between E. 10500N Rd and N. 14000E Rd. The tornado torqued a house on its foundation beyond repair and damaged a small church. There were also numerous barns and outbuildings destroyed and severe damage to several large trees. The tornado dissipated near N. 17500E Rd. Maximum winds were estimated to 115 mph.

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Summary:

This very short-lived tornado tracked near E. 10500N Rd. Damage occurred to both a house and a barn, to a swimming pool, and to trees. Maximum winds were estimated to 75 mph.

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Summary:

This tornado began near Kankakee County Highway 13 in Illinois and crossed into Indiana just south of E. 10500N Rd. A house under construction (but sealed) had an exterior wall of the garage blown out, part of a second story exterior wall blown in, and a portion of roof removed. A barn also had substantial roof damage along with numerous large trees snapped, uprooted, and partially stripped of their branches. The tornado dissipated south of Lowell, Indiana near Colfax St. Maximum winds were estimated to 110 mph.

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Summary:

This short-lived tornado began just west of the Illinois-Indiana state line and crossed the state line into a grove of trees and ended near Calumet Ave. There were multiple large trees downed with this tornado. Maximum winds were estimated to 90 mph.

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Summary:

This tornado started slightly east of the Illinois-Indiana state line and crossed U.S. Highway 41 before ending just east of Austin St. There were multiple large hardwood trees snapped and uprooted because of this tornado, as well as roof damage to a barn. Maximum winds were estimated to be 100 mph.

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Summary:

This tornado touched down near the intersection of U.S. Highway 41 and Belshaw Rd and tracked due east ending near Colfax Rd. Damage was done primarily to trees. Maximum winds were estimated to 110 mph.

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Summary:

This tornado started near Cline Avenue southwest of the community of Lowell and ended near W. 197th Rd. Numerous trees were snapped and uprooted. Maximum winds were estimated to 100 mph.

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Summary:

This tornado started near Colfax St. and tracked through the south side of Shelby, through DeMotte, and ended slightly east of N. 600W Rd. A large barn was completely destroyed, and damage was done to houses in both Shelby and DeMotte. In addition, numerous hardwood trees were snapped and uprooted. Maximum winds were estimated to 110 mph.

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Summary:

This strong tornado touched down near the intersection of Clark St and Belshaw Rd and ended slightly east of Harrison St. Outbuildings as well as two large grain bins were destroyed, and numerous large high-tension wood power poles were snapped. There were also numerous trees snapped and uprooted along with crop damage. Maximum winds were estimated to 115 mph.

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Summary:

This tornado began over a farmstead along Grant St and tracked due east ending near Mississippi St. A large barn was destroyed with the top half of the barn ripped off and the bottom half severely damaged. Numerous trees were snapped and uprooted. Maximum winds were estimated to 105 mph.

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Summary:

This tornado occurred northwest of Wheatfield tracking near W. 1450N Rd. Damage was done to a large pole barn with the roof blown off and multiple walls collapsed. There were also numerous trees snapped and uprooted. Maximum winds were estimated to 105 mph.

Map of Storm Reports from June 30, 2014

Radar reflectivity loop from 6:30 PM to 11:30 PM CDT

Radar imagery at the time of the Earlville tornado

(Clockwise from top left to bottom left: Reflectivity (Z), Velocity (V), Storm-Relative Velocity (SRM), Correlation Coefficient (CC))

Radar imagery at the time of the Plainfield tornado

(Clockwise from top left to bottom left: Reflectivity (Z), Velocity (V), Storm-Relative Velocity (SRM), Correlation Coefficient (CC))

Radar imagery at the time the derecho was producing tornadoes northwest of Momence and northwest of Grant Park

(Clockwise from top left to bottom left: Reflectivity (Z), Velocity (V), Storm-Relative Velocity (SRM), Correlation Coefficient (CC))

​Radar imagery at the time the derecho was producing tornadoes north of Momence and north of Grant Park

(Clockwise from top left to bottom left: Reflectivity (Z), Velocity (V), Storm-Relative Velocity (SRM), Correlation Coefficient (CC))

​Radar imagery at the time the derecho was producing tornadoes northeast of Grant Park

(Clockwise from top left to bottom left: Reflectivity (Z), Velocity (V), Storm-Relative Velocity (SRM), Correlation Coefficient (CC))