A vigorous upper-level disturbance interacting with a cold front triggered strong to severe thunderstorms west of the Mississippi River during the afternoon of May 20th.  These storms tracked eastward into central Illinois during the evening, producing wind damage and locally heavy rainfall in excess of 2 inches.  The most concentrated area of wind damage occurred across parts of Stark County, where numerous trees and power lines were blown down from the north side of Wyoming to Bradford.

Hail in STARK, ILLINOIS
From 20-MAY-13 19:45:00 to 20-MAY-13 19:46:00 (CST-6)
Location: WYOMING
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in FULTON, ILLINOIS
From 20-MAY-13 20:05:00 to 20-MAY-13 20:10:00 (CST-6)
Location: CANTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A 12-inch diameter tree was blown down in Canton.

Thunderstorm Wind in STARK, ILLINOIS
From 20-MAY-13 20:40:00 to 20-MAY-13 20:45:00 (CST-6)
Location: BRADFORD
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A grain bin was blown down.

Thunderstorm Wind in CASS, ILLINOIS
From 20-MAY-13 19:38:00 to 20-MAY-13 19:43:00 (CST-6)
Location: BLUFF SPGS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several tree branches were blown down 5 miles northwest of Virginia.

Thunderstorm Wind in STARK, ILLINOIS
From 20-MAY-13 19:45:00 to 20-MAY-13 19:55:00 (CST-6)
Location: WYOMING
Magnitude: 61.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread wind damage occurred from the north side of Wyoming northeastward to Bradford.  Numerous trees, tree branches, and power lines were blown down along this path.  In addition, minor damage to a few sheds and outbuildings was reported.

Thunderstorm Wind in FULTON, ILLINOIS
From 20-MAY-13 20:10:00 to 20-MAY-13 20:15:00 (CST-6)
Location: FARMINGTON
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several large trees were uprooted and a few power lines were knocked down.

Thunderstorm Wind in STARK, ILLINOIS
From 20-MAY-13 20:15:00 to 20-MAY-13 20:20:00 (CST-6)
Location: TOULON
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A grain bin was blown down in Toulon.

Thunderstorm Wind in PEORIA, ILLINOIS
From 20-MAY-13 20:22:00 to 20-MAY-13 20:27:00 (CST-6)
Location: LAURA
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Two large trees were blown down.

Thunderstorm Wind in PEORIA, ILLINOIS
From 20-MAY-13 20:20:00 to 20-MAY-13 20:25:00 (CST-6)
Location: ELMWOOD
Magnitude: 52.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several large tree limbs were blown onto power lines at Illinois Route 78 and Schissler Road.

Thunderstorm Wind in PEORIA, ILLINOIS
From 20-MAY-13 20:25:00 to 20-MAY-13 20:30:00 (CST-6)
Location: BRIMFIELD
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree limb was blown down onto power lines northwest of Brimfield.  Strong winds also damaged a garage door.

Thunderstorm Wind in PEORIA, ILLINOIS
From 20-MAY-13 20:25:00 to 20-MAY-13 20:30:00 (CST-6)
Location: ELMORE
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two large trees were blown down across Illinois Route 78 north of Laura.

Thunderstorm Wind in PEORIA, ILLINOIS
From 20-MAY-13 20:25:00 to 20-MAY-13 20:30:00 (CST-6)
Location: OAK HILL
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was blown down across Route 8 at Texas Road.

Thunderstorm Wind in PEORIA, ILLINOIS
From 20-MAY-13 20:25:00 to 20-MAY-13 20:30:00 (CST-6)
Location: BRIMFIELD
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The top half of a large tree was blown down onto power lines.

Thunderstorm Wind in STARK, ILLINOIS
From 20-MAY-13 20:35:00 to 20-MAY-13 20:40:00 (CST-6)
Location: BRADFORD
Magnitude: 52.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A shed was blown over in Bradford.

Thunderstorm Wind in PEORIA, ILLINOIS
From 20-MAY-13 18:50:00 to 20-MAY-13 18:55:00 (CST-6)
Location: SHERWOOD FOREST
Magnitude: 52.00 EG
Property damage: 9.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An 18-inch diameter tree was blown down onto a house.  In addition, several 8-inch diameter tree branches were broken off and landed on a roof.

Thunderstorm Wind in STARK, ILLINOIS
From 20-MAY-13 19:35:00 to 20-MAY-13 19:40:00 (CST-6)
Location: TOULON
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees and power lines were blown down in Toulon.

Thunderstorm Wind in CASS, ILLINOIS
From 20-MAY-13 19:35:00 to 20-MAY-13 19:40:00 (CST-6)
Location: ARENZVILLE
Magnitude: 52.00 EG
Property damage: 14.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Power lines were blown down in Arenzville.

Thunderstorm Wind in CASS, ILLINOIS
From 20-MAY-13 19:38:00 to 20-MAY-13 19:43:00 (CST-6)
Location: BEARDSTOWN
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A power pole was blown down in Beardstown.

Thunderstorm Wind in SHELBY, ILLINOIS
From 20-MAY-13 22:25:00 to 20-MAY-13 22:30:00 (CST-6)
Location: WINDSOR
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Four power poles and a 14-inch diameter tree were snapped off.  In addition, grain bins were destroyed and a machine shed had its roof torn off.

Thunderstorm Wind in MOULTRIE, ILLINOIS
From 20-MAY-13 22:22:00 to 20-MAY-13 22:27:00 (CST-6)
Location: SULLIVAN
Magnitude: 70.00 EG
Property damage: 45.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A roof was torn off a house and siding and shingle damage occurred to another house.

Thunderstorm Wind in MOULTRIE, ILLINOIS
From 20-MAY-13 22:25:00 to 20-MAY-13 22:30:00 (CST-6)
Location: SULLIVAN
Magnitude: 61.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Farm equipment and a truck were blown over in Sullivan.  Several trees and power lines were knocked down as well.

Thunderstorm Wind in CASS, ILLINOIS
From 20-MAY-13 19:40:00 to 20-MAY-13 19:45:00 (CST-6)
Location: VIRGINIA
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A power pole was blown down in Virginia.

Thunderstorm Wind in COLES, ILLINOIS
From 20-MAY-13 22:40:00 to 20-MAY-13 22:45:00 (CST-6)
Location: MATTOON
Magnitude: 61.00 EG
Property damage: 125.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees, tree branches, and power poles were blown down throughout Mattoon.

Thunderstorm Wind in CUMBERLAND, ILLINOIS
From 20-MAY-13 23:01:00 to 20-MAY-13 23:06:00 (CST-6)
Location: GREENUP
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A large walnut tree was blown down.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 20-MAY-13 18:39:00 to 20-MAY-13 18:44:00 (CST-6)
Location: CREVE COEUR
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Mesonet

A tree was blown onto a fence.

Thunderstorm Wind in WOODFORD, ILLINOIS
From 20-MAY-13 18:45:00 to 20-MAY-13 18:50:00 (CST-6)
Location: ROANOKE
Magnitude: 52.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A few small trees were blown down in Roanoke.