Strong to severe thunderstorms developed along a front across Iowa and Missouri during the evening of June 1st, then raced southeastward across central Illinois after midnight.  Wind speeds with the bow echo that swept through the area were generally between 40 and 50 mph...however a few localized gusts as high as 80 to 90 mph were reported along the leading edge of the squall line.  Numerous reports of wind damage were received, particularly along and west of I-55. Flash flooding also occurred in parts of northwest Illinois between Galesburg and Peoria.

Thunderstorm Wind in FULTON, ILLINOIS
From 01-JUN-10 23:35:00 to 01-JUN-10 23:55:00 (CST-6)
Location: BLYTON
Magnitude: 70.00 EG
Property damage: 225.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A corridor of enhanced wind damage occurred along Highway 24 in Fulton County from southwest of Fairview to just south of Farmington.  A National Weather Service Storm Survey found several machine sheds, garages, and outbuildings damaged or destroyed along this path.  In addition, numerous trees and powerlines were blown down as well.  The winds were likely caused by the rear-flank downdraft from a supercell thunderstorm just ahead of the main line of storms.

Thunderstorm Wind in WOODFORD, ILLINOIS
From 02-JUN-10 00:30:00 to 02-JUN-10 00:31:00 (CST-6)
Location: SPRING BAY
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown down across the road at the intersection of Route 26 and Lourdes Road.

Thunderstorm Wind in WOODFORD, ILLINOIS
From 02-JUN-10 00:35:00 to 02-JUN-10 00:36:00 (CST-6)
Location: EUREKA
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A stop sign was bent over and construction barricades were scattered across the road at Highway 24 and Deemack Road.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 02-JUN-10 00:58:00 to 02-JUN-10 00:59:00 (CST-6)
Location: SPRINGFIELD
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The roof and walls of a storage shed were damaged near MacArthur and Jeffereson Streets in Springfield.

Thunderstorm Wind in SANGAMON, ILLINOIS
From 02-JUN-10 01:03:00 to 02-JUN-10 01:04:00 (CST-6)
Location: JEROME
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Mesonet

Traffic lights were blown down at I-72 and Wabash Avenue in Springfield.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 02-JUN-10 00:40:00 to 02-JUN-10 00:41:00 (CST-6)
Location: ARMINGTON
Magnitude: 70.00 EG
Property damage: 125.00K
Crop damage: 0.00K
Reported by: Public

Grain bins and machine sheds were damaged.  A large tree limb was blown down onto the roof of a house.

Thunderstorm Wind in WOODFORD, ILLINOIS
From 02-JUN-10 00:58:00 to 02-JUN-10 00:59:00 (CST-6)
Location: MINONK
Magnitude: 52.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Shingles were blown off the Milennium Park Pavilion and a door was blown out at the Sewage Treatment Plant.

Thunderstorm Wind in MCLEAN, ILLINOIS
From 02-JUN-10 01:05:00 to 02-JUN-10 01:06:00 (CST-6)
Location: TOWANDA
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large maple tree was blown down.

Thunderstorm Wind in MCLEAN, ILLINOIS
From 02-JUN-10 02:45:00 to 02-JUN-10 02:46:00 (CST-6)
Location: DANVERS
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was uprooted.

Flash Flood in PEORIA, ILLINOIS
From 02-JUN-10 01:00:00 to 02-JUN-10 06:00:00 (CST-6)
Location: ELMORE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain produced 2.50 of rain in about an hour across much of northern Peoria County. Numerous rural roads were inundated and impassable due to the accumulated water.

Flash Flood in KNOX, ILLINOIS
From 01-JUN-10 22:30:00 to 02-JUN-10 05:00:00 (CST-6)
Location: RIO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

More than 3.00 of rain was measured in three hours, 2.00 of which occurred in one hour. The rain produced flooding of rural roads as well as city streets within Galesburg.

Hail in PEORIA, ILLINOIS
From 01-JUN-10 22:34:00 to 01-JUN-10 22:35:00 (CST-6)
Location: LAURA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in PEORIA, ILLINOIS
From 01-JUN-10 23:00:00 to 01-JUN-10 23:01:00 (CST-6)
Location: PRINCEVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in PEORIA, ILLINOIS
From 02-JUN-10 00:20:00 to 02-JUN-10 00:21:00 (CST-6)
Location: PEORIA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MACON, ILLINOIS
From 02-JUN-10 01:59:00 to 02-JUN-10 02:00:00 (CST-6)
Location: MT ZION
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in FULTON, ILLINOIS
From 01-JUN-10 23:45:00 to 01-JUN-10 23:46:00 (CST-6)
Location: CUBA
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large pine tree was blown down onto a deck.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 02-JUN-10 00:40:00 to 02-JUN-10 00:41:00 (CST-6)
Location: MACKINAW
Magnitude: 70.00 EG
Property damage: 26.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The roof of a barn was damaged and a large tree was blown down across Fast Avenue.  In addition...a semi truck was tipped over.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 02-JUN-10 00:40:00 to 02-JUN-10 00:41:00 (CST-6)
Location: MACKINAW
Magnitude: 70.00 EG
Property damage: 90.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The roof of a house and several outbuildings were damaged.  Numerous trees and power lines were blown down.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 02-JUN-10 00:40:00 to 02-JUN-10 00:41:00 (CST-6)
Location: WASHINGTON
Magnitude: 52.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree and several powerlines were blown down at Route 24 and Pleasantview Road.

Thunderstorm Wind in WOODFORD, ILLINOIS
From 02-JUN-10 00:42:00 to 02-JUN-10 00:43:00 (CST-6)
Location: EUREKA
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was uprooted.