Two storm complexes impacted central and southeast Illinois during the afternoon hours of the 18th into the early morning hours of the 19th.  The storms produced scattered damaging wind gusts of 60 to 70 mph, widespread heavy rainfall in central Illinois and flash flooding in Knox County.

Hail in KNOX, ILLINOIS
From 18-JUN-10 13:44:00 to 18-JUN-10 13:44:00 (CST-6)
Location: GALESBURG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in VERMILION, ILLINOIS
From 18-JUN-10 23:00:00 to 18-JUN-10 23:00:00 (CST-6)
Location: WESTVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash Flood in KNOX, ILLINOIS
From 18-JUN-10 21:45:00 to 19-JUN-10 03:00:00 (CST-6)
Location: RIO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several rounds of heavy rain in northwest and southern Knox County produced areas of flash flooding. Numerous city streets were flooded in Galesburg and Knoxville. Rainfall totals in the flash flood area ranged from 2.75 to nearly 4.00.

Thunderstorm Wind in KNOX, ILLINOIS
From 18-JUN-10 13:23:00 to 18-JUN-10 13:40:00 (CST-6)
Location: GALESBURG
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

One tree and numerous tree limbs were blown down from Galesburg to Dahinda.  Several power lines were downed as well.

Thunderstorm Wind in VERMILION, ILLINOIS
From 18-JUN-10 16:50:00 to 18-JUN-10 16:50:00 (CST-6)
Location: HOOPESTON
Magnitude: 52.00 EG
Property damage: 8.00K
Crop damage: 30.00K
Reported by: Emergency Manager

Numerous tree limbs were blown down and corn was flattened near Hoopston.

Thunderstorm Wind in KNOX, ILLINOIS
From 18-JUN-10 20:00:00 to 18-JUN-10 20:05:00 (CST-6)
Location: ALTONA
Magnitude: 52.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees, tree limbs, and power lines were blown down in and around Altona, Galesburg, and Abingdon.

Thunderstorm Wind in STARK, ILLINOIS
From 18-JUN-10 20:08:00 to 18-JUN-10 20:08:00 (CST-6)
Location: TOULON
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous tree limbs were blown down.

Thunderstorm Wind in FULTON, ILLINOIS
From 18-JUN-10 20:20:00 to 18-JUN-10 20:24:00 (CST-6)
Location: FARMINGTON
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A few small trees were snapped off by thunderstorm winds.

Thunderstorm Wind in PEORIA, ILLINOIS
From 18-JUN-10 20:25:00 to 18-JUN-10 20:40:00 (CST-6)
Location: TRIVOLI
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous tree limbs were blown down between Trivoli and Peoria.

Thunderstorm Wind in MARSHALL, ILLINOIS
From 18-JUN-10 20:35:00 to 18-JUN-10 20:35:00 (CST-6)
Location: LACON
Magnitude: 52.00 EG
Property damage: 12.00K
Crop damage: 0.00K
Reported by: COOP Observer

Numerous tree limbs were blown down.

Thunderstorm Wind in PEORIA, ILLINOIS
From 18-JUN-10 20:49:00 to 18-JUN-10 20:49:00 (CST-6)
Location: WEST PEORIA
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was blown down onto a house.

Thunderstorm Wind in CASS, ILLINOIS
From 18-JUN-10 22:10:00 to 18-JUN-10 22:10:00 (CST-6)
Location: BEARDSTOWN
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

One tree and numerous tree limbs were blown down in and around Beardstown.

Thunderstorm Wind in CLAY, ILLINOIS
From 19-JUN-10 01:55:00 to 19-JUN-10 01:55:00 (CST-6)
Location: FLORA
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A two foot diameter tree was uprooted.

Thunderstorm Wind in MCLEAN, ILLINOIS
From 18-JUN-10 21:25:00 to 18-JUN-10 21:25:00 (CST-6)
Location: TOWANDA
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was blown onto a house.