A cold front interacting with a warm and humid airmass triggered strong to severe thunderstorms across parts of central Illinois during the evening of June 20th.  Many of the storms produced wind gusts of 60 to 70 mph, resulting in scattered wind damage across the area...particularly along and west of the I-55 corridor.

Thunderstorm Wind in KNOX, ILLINOIS
From 20-JUN-15 19:36:00 to 20-JUN-15 19:41:00 (CST-6)
Location: RIO
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Several trees were blown down in Rio.

Thunderstorm Wind in KNOX, ILLINOIS
From 20-JUN-15 19:45:00 to 20-JUN-15 19:50:00 (CST-6)
Location: ONEIDA
Magnitude: 52.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Public

A few trees were blown down in Oneida.

Thunderstorm Wind in SCHUYLER, ILLINOIS
From 20-JUN-15 19:45:00 to 20-JUN-15 19:50:00 (CST-6)
Location: BROOKLYN
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees were blown down in Brooklyn.

Thunderstorm Wind in STARK, ILLINOIS
From 20-JUN-15 20:05:00 to 20-JUN-15 20:10:00 (CST-6)
Location: WEST JERSEY
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A power line was blown down.

Thunderstorm Wind in KNOX, ILLINOIS
From 20-JUN-15 19:50:00 to 20-JUN-15 19:55:00 (CST-6)
Location: ALTONA
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was blown down about 2 miles south of Altona.

Thunderstorm Wind in MASON, ILLINOIS
From 20-JUN-15 20:15:00 to 20-JUN-15 20:20:00 (CST-6)
Location: HAVANA
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down in Havana.

Thunderstorm Wind in PEORIA, ILLINOIS
From 20-JUN-15 20:25:00 to 20-JUN-15 20:30:00 (CST-6)
Location: PEORIA HGTS
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tree limbs were blown onto power lines at Route 40 and US 150 and at Route 40 and Glenn Avenue in Peoria.

Thunderstorm Wind in MARSHALL, ILLINOIS
From 20-JUN-15 20:39:00 to 20-JUN-15 20:44:00 (CST-6)
Location: HENRY
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A one-foot diameter tree was blown down onto Route 26.

Thunderstorm Wind in MARSHALL, ILLINOIS
From 20-JUN-15 20:49:00 to 20-JUN-15 20:54:00 (CST-6)
Location: VARNA
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down onto Route 89 about 1 mile north of Varna.

Thunderstorm Wind in MORGAN, ILLINOIS
From 20-JUN-15 20:50:00 to 20-JUN-15 20:55:00 (CST-6)
Location: JACKSONVILLE
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were blown down.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 20-JUN-15 21:05:00 to 20-JUN-15 21:10:00 (CST-6)
Location: RIVERTON
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tree limbs were blown onto Old Route 36 in Riverton.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 20-JUN-15 21:09:00 to 20-JUN-15 21:14:00 (CST-6)
Location: BUFFALO HART
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down across Route 54 south of Cornland.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 20-JUN-15 21:14:00 to 20-JUN-15 21:19:00 (CST-6)
Location: MECHANICSBURG
Magnitude: 52.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown onto a mobile home in Mechanicsburg.

Thunderstorm Wind in CHRISTIAN, ILLINOIS
From 20-JUN-15 21:35:00 to 20-JUN-15 21:40:00 (CST-6)
Location: MORRISONVILLE
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several small tree limbs were blown down across Morrisonville.

Thunderstorm Wind in MACON, ILLINOIS
From 20-JUN-15 21:45:00 to 20-JUN-15 21:50:00 (CST-6)
Location: DECATUR
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

A tree was blown down across Grand Avenue in Decatur.

Thunderstorm Wind in VERMILION, ILLINOIS
From 20-JUN-15 22:47:00 to 20-JUN-15 22:52:00 (CST-6)
Location: HOOPESTON
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several 4 to 8-inch diameter tree branches were blown down.

Thunderstorm Wind in KNOX, ILLINOIS
From 20-JUN-15 19:36:00 to 20-JUN-15 19:41:00 (CST-6)
Location: GALESBURG
Magnitude: 52.00 EG
Property damage: 45.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and power lines were blown down.

Hail in TAZEWELL, ILLINOIS
From 20-JUN-15 20:30:00 to 20-JUN-15 20:35:00 (CST-6)
Location: PEKIN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in CHAMPAIGN, ILLINOIS
From 20-JUN-15 22:00:00 to 20-JUN-15 22:05:00 (CST-6)
Location: LUDLOW
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in KNOX, ILLINOIS
From 20-JUN-15 19:50:00 to 20-JUN-15 19:55:00 (CST-6)
Location: ALTONA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree and power pole were blown down in Altona.

Thunderstorm Wind in MORGAN, ILLINOIS
From 20-JUN-15 20:55:00 to 20-JUN-15 21:00:00 (CST-6)
Location: FRANKLIN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were blown down at Hearts Prairie Road and Route 104.

Thunderstorm Wind in PEORIA, ILLINOIS
From 20-JUN-15 20:20:00 to 20-JUN-15 20:25:00 (CST-6)
Location: DUNLAP
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 5.00K
Reported by: Public

Two mature apple trees were blown down and numerous 4 to 6-inch diameter branches were snapped off.  Corn was flattened.

Thunderstorm Wind in VERMILION, ILLINOIS
From 20-JUN-15 22:30:00 to 20-JUN-15 22:35:00 (CST-6)
Location: HOOPESTON
Magnitude: 52.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were blown down and a small shed was destroyed.