A line of thunderstorms moved across northern Illinois producing a swath of wind damage primarily across the northwest and north suburbs of Chicago.

Thunderstorm Wind in KANE, ILLINOIS
From 05-SEP-14 13:25:00 to 05-SEP-14 13:30:00 (CST-6)
Location: UNIDA
Magnitude: 65.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees and large tree limbs were reported down across portions of Elgin.  Approximately a mile northeast of Elgin, trees were uprooted and snapped.  Two to three foot diameter trees fell onto homes and cars.  Some roads were impassable.

Thunderstorm Wind in COOK, ILLINOIS
From 05-SEP-14 13:40:00 to 05-SEP-14 13:40:00 (CST-6)
Location: SUTTON
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large tree branches were blown down with several gusts estimated at over 60 mph.

Thunderstorm Wind in COOK, ILLINOIS
From 05-SEP-14 13:42:00 to 05-SEP-14 13:45:00 (CST-6)
Location: STREAMWOOD
Magnitude: 62.00 MG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Mesonet

Several trained spotters estimated winds between 50 and 65 mph near Hoffman Estates with a mesonet site measuring 71 mph wind gusts.  Tree limbs were blown down.  A wooden frame building under construction collapsed near the intersection of Barrington Road and Schaumburg Road.

Thunderstorm Wind in COOK, ILLINOIS
From 05-SEP-14 13:45:00 to 05-SEP-14 13:50:00 (CST-6)
Location: PALATINE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Large trees were blown down.

Thunderstorm Wind in LAKE, ILLINOIS
From 05-SEP-14 13:48:00 to 05-SEP-14 13:48:00 (CST-6)
Location: LIBERTYVILLE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A large tree was blown down onto Butterfield Road just north of IL-176.

Thunderstorm Wind in COOK, ILLINOIS
From 05-SEP-14 13:50:00 to 05-SEP-14 13:50:00 (CST-6)
Location: PROSPECT HGTS
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and large branches were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 05-SEP-14 13:55:00 to 05-SEP-14 13:55:00 (CST-6)
Location: WHEELING
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in COOK, ILLINOIS
From 05-SEP-14 13:55:00 to 05-SEP-14 13:55:00 (CST-6)
Location: NORTH NORTHFIELD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A large tree was blown down striking and killing a bicyclist on a bike trail.

Thunderstorm Wind in COOK, ILLINOIS
From 05-SEP-14 13:55:00 to 05-SEP-14 14:00:00 (CST-6)
Location: NORTHBROOK
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

A light pole, multiple trees, and numerous fences were toppled.  Tree limbs 15 to 20 feet in length were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 05-SEP-14 13:55:00 to 05-SEP-14 13:55:00 (CST-6)
Location: DES PLAINES
Magnitude: 56.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A building under renovation collapsed due to severe winds resulting in minor injuries to four workers who were trapped and had to be rescued.  Winds were estimated to around 65 mph by a trained spotter at Oakton Community College.