A strong cold front moved through central and southeast Illinois during the afternoon hours of the 18th.  Severe thunderstorms developed along and ahead of this front.

Hail in MACON, ILLINOIS
From 18-OCT-07 16:35:00 to 18-OCT-07 16:35:00 (CST-6)
Location: ARGENTA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PIATT, ILLINOIS
From 18-OCT-07 16:53:00 to 18-OCT-07 16:53:00 (CST-6)
Location: DELAND
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COLES, ILLINOIS
From 18-OCT-07 18:01:00 to 18-OCT-07 18:01:00 (CST-6)
Location: OAKLAND
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in LAWRENCE, ILLINOIS
From 18-OCT-07 18:25:00 to 18-OCT-07 18:25:00 (CST-6)
Location: SUMNER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in SHELBY, ILLINOIS
From 18-OCT-07 17:02:00 to 18-OCT-07 17:02:00 (CST-6)
Location: COWDEN
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in MACON, ILLINOIS
From 18-OCT-07 16:26:00 to 18-OCT-07 16:26:00 (CST-6)
Location: DECATUR
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Golf ball sized hail was reported on the east side of Lake Decatur.

Thunderstorm Wind in LAWRENCE, ILLINOIS
From 18-OCT-07 18:30:00 to 18-OCT-07 18:32:00 (CST-6)
Location: BRIDGEPORT
Magnitude: 61.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees and power lines were blown down.

Thunderstorm Wind in MACON, ILLINOIS
From 18-OCT-07 16:25:00 to 18-OCT-07 16:25:00 (CST-6)
Location: DECATUR
Magnitude: 61.00 EG
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were blown down on Lake Shore Drive. A hospital roof was damaged, and debris broke car windows.

Thunderstorm Wind in PIATT, ILLINOIS
From 18-OCT-07 16:35:00 to 18-OCT-07 16:35:00 (CST-6)
Location: CISCO
Magnitude: 52.00 EG
Property damage: 22.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were damaged, a trampoline was blown into a tree in a tree, and a semi truck flipped over.

Thunderstorm Wind in MOULTRIE, ILLINOIS
From 18-OCT-07 16:51:00 to 18-OCT-07 16:51:00 (CST-6)
Location: BETHANY
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and power lines were blown down.

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 18-OCT-07 17:19:00 to 18-OCT-07 17:19:00 (CST-6)
Location: CHAMPAIGN
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree was blown down on Kirby Street.

Thunderstorm Wind in COLES, ILLINOIS
From 18-OCT-07 17:42:00 to 18-OCT-07 17:42:00 (CST-6)
Location: MATTOON
Magnitude: 52.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous tree branches were blown down.

Thunderstorm Wind in CHAMPAIGN, ILLINOIS
From 18-OCT-07 17:55:00 to 18-OCT-07 17:55:00 (CST-6)
Location: OGDEN
Magnitude: 50.00 MG
Property damage: 31.00K
Crop damage: 0.00K
Reported by: COOP Observer

Numerous tree limbs and power lines were blown down.