Strong to severe thunderstorms moved across northern Illinois during the evening hours of May 13th into the early morning hours of May 14th.

Thunderstorm Wind in IROQUOIS, ILLINOIS
From 13-MAY-09 22:00:00 to 13-MAY-09 22:00:00 (CST-6)
Location: GILMAN
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Light poles were blown down near Interstate 57 and Route 24.

Thunderstorm Wind in OGLE, ILLINOIS
From 13-MAY-09 20:55:00 to 13-MAY-09 20:55:00 (CST-6)
Location: OREGON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree limb was blown down blocking both lanes of the 500th block of North 4th Avenue.

Flash Flood in KANKAKEE, ILLINOIS
From 13-MAY-09 22:00:00 to 14-MAY-09 04:00:00 (CST-6)
Location: ALTORF
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several roads in Bourbonnais and Bradley were flooded.  Viaducts were also flooded and closed.  Three stalled cars were reported in a flooded viaduct east of Broadway.  Eighteen inches of water was reported in the intersection of Mooney Drive and Armour Road.  Storm total rainfall in Bourbonnais was measured at 3.47 inches.

Thunderstorm Wind in KANKAKEE, ILLINOIS
From 13-MAY-09 22:50:00 to 13-MAY-09 22:50:00 (CST-6)
Location: BOURBONNAIS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An eighteen inch diameter tree was blown down near the 100 block of North Center Street.

Thunderstorm Wind in WILL, ILLINOIS
From 13-MAY-09 21:10:00 to 13-MAY-09 21:10:00 (CST-6)
Location: ROMEOVILLE
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Utility poles and power lines were blown down near 135th Street.  Part of a roof was also reported blown off in the same area.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 13-MAY-09 19:45:00 to 13-MAY-09 19:45:00 (CST-6)
Location: WHEATON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An eighteen inch diameter tree limb fell onto the roof of house on North Cross Street.

Thunderstorm Wind in LEE, ILLINOIS
From 13-MAY-09 19:50:00 to 13-MAY-09 19:50:00 (CST-6)
Location: AMBOY
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were blown down.

Thunderstorm Wind in BOONE, ILLINOIS
From 13-MAY-09 19:55:00 to 13-MAY-09 19:55:00 (CST-6)
Location: HUNTER
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree was blown down blocking part of a road near Free Church and Manchester Roads.

Hail in LAKE, ILLINOIS
From 13-MAY-09 20:44:00 to 13-MAY-09 20:46:00 (CST-6)
Location: LAKE ZURICH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail was reported near Route 22 and Route 12.

Hail in OGLE, ILLINOIS
From 13-MAY-09 20:44:00 to 13-MAY-09 20:45:00 (CST-6)
Location: MT MORRIS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in KANKAKEE, ILLINOIS
From 13-MAY-09 23:05:00 to 13-MAY-09 23:05:00 (CST-6)
Location: YEAGER
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Dozens of trees were uprooted along 4000N, northwest of Momence.  The fallen trees damaged vehicles and flattened a large pole barn.  Just down the road, a roof of an outbuilding was partially removed.  At the same location the roof of a house was torn off.  Pieces of twisted metal from the roofs of barns and sheds were found in trees and wrapped around nearby utility poles.

Thunderstorm Wind in OGLE, ILLINOIS
From 13-MAY-09 20:35:00 to 13-MAY-09 20:35:00 (CST-6)
Location: MT MORRIS
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Newspaper

The roof of a grain bin was blown off along Lowell Park Road.  Debris from the bin was strewn several hundred feet away into a nearby field.  A large pine tree near the bin was twisted off and a window of a house was broke.  Part of a roof of an apartment building was blown off in downtown Mount Morris.

Hail in MCHENRY, ILLINOIS
From 13-MAY-09 21:44:00 to 13-MAY-09 21:45:00 (CST-6)
Location: CRYSTAL LAKE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in IROQUOIS, ILLINOIS
From 13-MAY-09 23:00:00 to 13-MAY-09 23:00:00 (CST-6)
Location: L ERABLE
Magnitude: 61.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two sheds were destroyed by strong winds.