A cold front interacting with a highly unstable airmass triggered severe thunderstorms across east-central and southeast Illinois during the afternoon of June 15th.  The storms mainly impacted locations along and south of a Paris...to Mattoon...to Shelbyville line.  Numerous trees and power lines were blown down and hail up to the size of quarters was reported.

Hail in KNOX, ILLINOIS
From 15-JUN-16 00:25:00 to 15-JUN-16 00:30:00 (CST-6)
Location: RIO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MOULTRIE, ILLINOIS
From 15-JUN-16 13:30:00 to 15-JUN-16 13:35:00 (CST-6)
Location: CADWELL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in CLARK, ILLINOIS
From 15-JUN-16 14:37:00 to 15-JUN-16 14:42:00 (CST-6)
Location: CLARKSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CLARK, ILLINOIS
From 15-JUN-16 14:46:00 to 15-JUN-16 14:51:00 (CST-6)
Location: CASEY
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A few power lines were blown down.

Thunderstorm Wind in COLES, ILLINOIS
From 15-JUN-16 14:02:00 to 15-JUN-16 14:07:00 (CST-6)
Location: MATTOON
Magnitude: 52.00 EG
Property damage: 32.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several power lines were blown down just west of Mattoon.

Thunderstorm Wind in COLES, ILLINOIS
From 15-JUN-16 14:02:00 to 15-JUN-16 14:07:00 (CST-6)
Location: MATTOON
Magnitude: 52.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Empty semi trailers were pushed over and numerous trees and power lines were blown down.

Thunderstorm Wind in CLARK, ILLINOIS
From 15-JUN-16 14:50:00 to 15-JUN-16 14:55:00 (CST-6)
Location: MARTINSVILLE
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were blown down just west of Martinsville.

Thunderstorm Wind in CLARK, ILLINOIS
From 15-JUN-16 14:56:00 to 15-JUN-16 15:01:00 (CST-6)
Location: MARTINSVILLE
Magnitude: 52.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous tree branches and power lines were blown down causing a large power outage in Martinsville.

Thunderstorm Wind in CLARK, ILLINOIS
From 15-JUN-16 14:58:00 to 15-JUN-16 15:03:00 (CST-6)
Location: MARSHALL
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several power lines were blown down in Marshall.

Thunderstorm Wind in JASPER, ILLINOIS
From 15-JUN-16 15:06:00 to 15-JUN-16 15:11:00 (CST-6)
Location: YALE
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down in Yale.

Thunderstorm Wind in JASPER, ILLINOIS
From 15-JUN-16 15:11:00 to 15-JUN-16 15:16:00 (CST-6)
Location: HUNT CITY
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down in Hunt City.

Thunderstorm Wind in CRAWFORD, ILLINOIS
From 15-JUN-16 15:15:00 to 15-JUN-16 15:20:00 (CST-6)
Location: HUTSONVILLE
Magnitude: 61.00 EG
Property damage: 65.00K
Crop damage: 0.00K
Reported by: NWS Employee

Numerous power poles were snapped about 3 miles northwest of Hutsonville.

Thunderstorm Wind in JASPER, ILLINOIS
From 15-JUN-16 15:15:00 to 15-JUN-16 15:20:00 (CST-6)
Location: WILLOW HILL
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several power lines were blown down in Willow Hill.

Thunderstorm Wind in CRAWFORD, ILLINOIS
From 15-JUN-16 15:17:00 to 15-JUN-16 15:22:00 (CST-6)
Location: HUTSONVILLE
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were blown down in Hutsonville.

Thunderstorm Wind in JASPER, ILLINOIS
From 15-JUN-16 15:17:00 to 15-JUN-16 15:22:00 (CST-6)
Location: WILLOW HILL
Magnitude: 61.00 EG
Property damage: 70.00K
Crop damage: 0.00K
Reported by: Department of Highways

Route 33 between Willow Hill and Oblong was closed due to numerous power poles being blown down.