Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-MAY-04 09:25:00 to 21-MAY-04 09:25:00 (CST)
Location: HINSDALE
Magnitude: 55 EG
Reported by: GENERAL PUBLIC

Large tree limbs were down.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-MAY-04 09:15:00 to 21-MAY-04 09:15:00 (CST)
Location: WEST CHICAGO
Magnitude: 55 EG
Reported by: EMERGENCY MANAGER

Many large trees and power lines were blown down across much of the downtown area.

Thunderstorm Wind in COOK, ILLINOIS
From 21-MAY-04 09:15:00 to 21-MAY-04 09:15:00 (CST)
Location: EVANSTON
Magnitude: 50 EG
Reported by: TRAINED SPOTTER

Large tree branches were blown down at corner of Sherman Road and Main Street.

Thunderstorm Wind in COOK, ILLINOIS
From 21-MAY-04 09:08:00 to 21-MAY-04 09:08:00 (CST)
Location: CHICAGO
Magnitude: 50 MG
Reported by: GENERAL PUBLIC

Large tree limbs were down and shingles blown off of a roof 6 miles east of O'Hare. A wind gust was measured with an unofficial weather instrument.

Flash Flood in KANE, ILLINOIS
From 21-MAY-04 08:30:00 to 21-MAY-04 09:00:00 (CST)
Location: WEST DUNDEE
Reported by: LAW ENFORCEMENT

Street flooding was reported.

Thunderstorm Wind in BOONE, ILLINOIS
From 21-MAY-04 08:10:00 to 21-MAY-04 08:10:00 (CST)
Location: BELVIDERE
Magnitude: 53 EG
Reported by: AMATEUR RADIO

Large tree branches were down.

Thunderstorm Wind in WINNEBAGO, ILLINOIS
From 21-MAY-04 08:00:00 to 21-MAY-04 08:00:00 (CST)
Location: LOVES PARK
Magnitude: 50 EG
Reported by: LAW ENFORCEMENT

7 inch diameter tree limbs were blown down between Harlem and Windsor Roads.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-MAY-04 09:05:00 to 21-MAY-04 09:05:00 (CST)
Location: LIBERTYVILLE
Magnitude: 50 EG
Reported by: TRAINED SPOTTER

Trees were blown down near Milwaukee and Peterson Roads and north along Route 21.

Thunderstorm Wind in KANE, ILLINOIS
From 21-MAY-04 08:30:00 to 21-MAY-04 08:30:00 (CST)
Location: WEST DUNDEE
Magnitude: 50 EG
Reported by: LAW ENFORCEMENT

Power lines and large tree limbs were blown down.

Thunderstorm Wind in MCHENRY, ILLINOIS
From 21-MAY-04 08:30:00 to 21-MAY-04 08:40:00 (CST)
Location: COUNTYWIDE
Magnitude: 50 EG
Reported by: EMERGENCY MANAGER

A tree was blown down across the road at the intersection of South Solon Road and Ridge Road in Spring Grove.  Also, power lines were down on State Park Road. The sheriff's department reported minor wind damage in Cary, Crystal Lake, Harvard, Hebron, Marengo, McHenry, Richmond, Union, Wonder Lake and Woodstock.

Thunderstorm Wind in KANE, ILLINOIS
From 21-MAY-04 08:45:00 to 21-MAY-04 08:45:00 (CST)
Location: CARPENTERSVILLE
Magnitude: 50 EG
Reported by: LAW ENFORCEMENT

A large tree fell on house causing substantial damage to the house.

Thunderstorm Wind in COOK, ILLINOIS
From 21-MAY-04 09:09:00 to 21-MAY-04 09:09:00 (CST)
Location: MELROSE PARK
Magnitude: 55 EG
Reported by: EMERGENCY MANAGER

Eight to 10 inch diameter tree limbs were blown down.  Stadium lights were damaged at the civic center.  Most of the damage was along Chicago Avenue.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-MAY-04 08:55:00 to 21-MAY-04 08:55:00 (CST)
Location: HAWTHORNE WOODS
Magnitude: 55 EG
Reported by: AMATEUR RADIO

Trees and power lines were down.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-MAY-04 08:50:00 to 21-MAY-04 08:50:00 (CST)
Location: LAKE ZURICH
Magnitude: 55 EG
Reported by: TRAINED SPOTTER

Trees and large branches were down.

Thunderstorm Wind in KANE, ILLINOIS
From 21-MAY-04 08:44:00 to 21-MAY-04 08:44:00 (CST)
Location: CARPENTERSVILLE
Magnitude: 50 EG
Reported by: TRAINED SPOTTER

Large tree branches were down.

Thunderstorm Wind in KANE, ILLINOIS
From 21-MAY-04 08:40:00 to 21-MAY-04 08:40:00 (CST)
Location: HAMPSHIRE
Magnitude: 55 EG
Reported by: EMERGENCY MANAGER

Trees and power lines were down.  Two semi tractor-trailers were blown off the road in northern Kane County.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-MAY-04 08:35:00 to 21-MAY-04 08:35:00 (CST)
Location: ANTIOCH
Magnitude: 50 EG
Reported by: TRAINED SPOTTER

Trees and power lines were down.