A powerful line of severe thunderstorms moved northeast across northern Illinois during the evening hours of June 21st producing damaging winds and widespread wind damage.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:45:00 to 21-JUN-11 19:45:00 (CST-6)
Location: WILLOWBROOK
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

A 14 inch diameter tree fell on a car near Fordham Way and Longford Drive.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:45:00 to 21-JUN-11 19:45:00 (CST-6)
Location: SCHAUMBURG
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:45:00 to 21-JUN-11 19:45:00 (CST-6)
Location: WINNETKA
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:45:00 to 21-JUN-11 19:45:00 (CST-6)
Location: DOWNERS GROVE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A 14 inch diameter tree was uprooted near the intersection of Fairview Avenue and Gierz Street.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:37:00 to 21-JUN-11 19:39:00 (CST-6)
Location: WHEATON
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency managers in DuPage County measured 62 mph wind gusts in Wheaton while a mesonet just north of Wheaton measured 59 mph wind gusts.

Thunderstorm Wind in LA SALLE, ILLINOIS
From 21-JUN-11 17:50:00 to 21-JUN-11 17:55:00 (CST-6)
Location: PERU
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in FORD, ILLINOIS
From 21-JUN-11 18:05:00 to 21-JUN-11 18:05:00 (CST-6)
Location: PAXTON ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was downed near the intersection of Route 9 and 1600 E.

Thunderstorm Wind in KANE, ILLINOIS
From 21-JUN-11 19:11:00 to 21-JUN-11 19:11:00 (CST-6)
Location: SCRAPER MOECHERVILLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated gusts to 65 mph occurred one block south of Four Seasons Boulevard and Victoria Park Circle.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:25:00 to 21-JUN-11 19:25:00 (CST-6)
Location: LISLE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:28:00 to 21-JUN-11 19:28:00 (CST-6)
Location: WHEATON
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Transformers exploded when an estimated 75 mph gust occurred near the intersection of Roosevelt Road and County Farm Road.

Thunderstorm Wind in WILL, ILLINOIS
From 21-JUN-11 19:30:00 to 21-JUN-11 19:30:00 (CST-6)
Location: PLAINFIELD CLOW ARPT
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:45:00 to 21-JUN-11 19:45:00 (CST-6)
Location: WILLOWBROOK
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The top of a 6 to 8 inch diameter maple tree was snapped off near Cass Avenue and 63rd Street.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:45:00 to 21-JUN-11 19:45:00 (CST-6)
Location: WESTMONT
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Numerous tree limbs were blown down near 55th Street and Clarendon Hills Road.  Some tree limbs were 10 inches or greater in diameter.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:45:00 to 21-JUN-11 19:45:00 (CST-6)
Location: CUMBERLAND
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple whole trees were blown down northeast of Cumberland Parkway.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:50:00 to 21-JUN-11 19:50:00 (CST-6)
Location: THE GREENS
Magnitude: 65.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Newspaper

A 35 foot by 40 foot section of an apartment building roof was blown off a multifamily residence on Josephine Street in Maine Township.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-JUN-11 20:00:00 to 21-JUN-11 20:00:00 (CST-6)
Location: DEERFIELD
Magnitude: 65.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous trees, tree limbs and power lines were blown down.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-JUN-11 20:02:00 to 21-JUN-11 20:02:00 (CST-6)
Location: LAKE FOREST
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Approximately 300 trees were damaged in Lake Forest with 35 trees blown down or were damaged severely enough to be removed.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-JUN-11 20:06:00 to 21-JUN-11 20:06:00 (CST-6)
Location: MUNDELEIN
Magnitude: 60.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Newspaper

Trees, tree limbs and power lines were blown down.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:38:00 to 21-JUN-11 19:38:00 (CST-6)
Location: VILLA PARK
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Hundreds of trees were damaged in Villa Park.  About 20 mature trees were removed due to severe damage.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:47:00 to 21-JUN-11 19:47:00 (CST-6)
Location: LINCOLNWOOD
Magnitude: 65.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous trees, tree limbs and power lines were blown down.  One tree fell onto a parked car on Keating Avenue.

Thunderstorm Wind in MCHENRY, ILLINOIS
From 21-JUN-11 18:30:00 to 21-JUN-11 18:30:00 (CST-6)
Location: FOX RIVER GROVE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A tree limb was blown down onto power lines on South Rawson Bridge Road between Three Oaks and Crystal Lakes roads.

Lightning in MCHENRY, ILLINOIS
From 21-JUN-11 18:30:00 to 21-JUN-11 18:30:00 (CST-6)
Location: WONDER LAKE
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning struck a house in the 5300 block of East Wonder Lake Road and started a fire in the attic.

Flood in LA SALLE, ILLINOIS
From 21-JUN-11 19:00:00 to 21-JUN-11 23:00:00 (CST-6)
Location: MARSEILLES
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Minor street flooding along with some basement flooding was reported.  Storm total rainfall amounts of 1.50 inches were measured in Marseilles.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:54:00 to 21-JUN-11 19:54:00 (CST-6)
Location: SCHAUMBURG
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated wind gusts to 70 mph occurred in Schaumburg.

Flood in LA SALLE, ILLINOIS
From 21-JUN-11 20:00:00 to 21-JUN-11 21:00:00 (CST-6)
Location: MARSEILLES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain caused 5 to 6 inches of standing water at the intersection of County Road 15 and County Road 30.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:55:00 to 21-JUN-11 19:55:00 (CST-6)
Location: HOFFMAN ESTATES
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts were estimated to 65 mph.

Thunderstorm Wind in KANE, ILLINOIS
From 21-JUN-11 19:50:00 to 21-JUN-11 19:50:00 (CST-6)
Location: ELGIN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts were estimated to 60 mph.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-JUN-11 20:08:00 to 21-JUN-11 20:08:00 (CST-6)
Location: LIBERTYVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts were estimated to 60 mph.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-JUN-11 20:09:00 to 21-JUN-11 20:09:00 (CST-6)
Location: RONDOUT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts were estimated to 60 mph approximately one mile north of Interstate 94 on Bradley Road.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-JUN-11 20:17:00 to 21-JUN-11 20:17:00 (CST-6)
Location: WAUKEGAN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts were estimated to 60 mph near the intersection of North Avenue and Ridgeland Avenue where multiple 30-foot long branches were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:57:00 to 21-JUN-11 19:57:00 (CST-6)
Location: GLENCOE
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Trees, tree limbs and power lines were blown down in many areas.  Some trees fell onto houses and other buildings.  Power outages lasted several days causing significant food spoilage.

Thunderstorm Wind in KANE, ILLINOIS
From 21-JUN-11 19:42:00 to 21-JUN-11 19:42:00 (CST-6)
Location: GENEVA
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Newspaper

A tree was blown down on Gray Street.  Tree limbs and power lines were also blown down in parts of Geneva.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:43:00 to 21-JUN-11 19:43:00 (CST-6)
Location: BENSENVILLE
Magnitude: 70.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Newspaper

A roof was blown off a building on Waveland.  Part of the roof was tangled in nearby power lines.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:37:00 to 21-JUN-11 19:37:00 (CST-6)
Location: BUTTERFIELD WEST
Magnitude: 70.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Newspaper

A 100 foot tall maple tree was blown down onto a house causing signficant damage to the roof and attic.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:43:00 to 21-JUN-11 19:43:00 (CST-6)
Location: BENSENVILLE
Magnitude: 65.00 EG
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Newspaper

High winds blew over several bleachers, blew down a fence along with many downed trees in Redmond Park.  Numerous trees and tree limbs were blown down in parts of Bensenville.  Some of the trees fell onto cars.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:41:00 to 21-JUN-11 19:41:00 (CST-6)
Location: WHEATON
Magnitude: 65.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Newspaper

The top of a huge tree was snapped off and crashed through part of a bedroom of a house causing significant damage.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:55:00 to 21-JUN-11 19:55:00 (CST-6)
Location: WHEELING
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A large section of a tree was blown down narrowly missing a house.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:39:00 to 21-JUN-11 19:39:00 (CST-6)
Location: HANSON PARK
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

A 14 inch diameter, 20 foot long tree limb fell on a porch on Ashland Avenue.  Several homes and at least one car were damaged.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:47:00 to 21-JUN-11 19:47:00 (CST-6)
Location: ORCHARD PLACE
Magnitude: 65.00 EG
Property damage: 0.10K
Crop damage: 0.00K
Reported by: Newspaper

A large tree was blown down near the Rosemont Fitness Center.  Part of the tree damaged 8 feet of chain link fence.  Other tree limbs were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:51:00 to 21-JUN-11 19:51:00 (CST-6)
Location: ARLINGTON HGTS
Magnitude: 61.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

Tree limbs and power lines were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:52:00 to 21-JUN-11 19:52:00 (CST-6)
Location: PROSPECT HGTS
Magnitude: 65.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Newspaper

Trees, tree limbs and power lines were blown down in many areas in Prospect Heights.  A large tree was completely uprooted along the Willow Sloughs.  The roof of an apartment building on Wolf Road was blown off.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:51:00 to 21-JUN-11 19:51:00 (CST-6)
Location: ROLLING MEADOWS
Magnitude: 60.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

Tree limbs and power lines were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:18:00 to 21-JUN-11 19:18:00 (CST-6)
Location: LEMONT
Magnitude: 65.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

Five trees were blown down across parts of Bluff Road.  Other tree limbs and power lines were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:52:00 to 21-JUN-11 19:52:00 (CST-6)
Location: PALATINE
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Newspaper

Tree limbs and power lines were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:37:00 to 21-JUN-11 19:37:00 (CST-6)
Location: LA GRANGE
Magnitude: 65.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Newspaper

The west side of La Grange was hit the hardest with numerous trees, tree limbs and power lines blown down.  Some streets were completely blocked due to the fallen trees.  Six homes and one garage were damaged by the falling trees and limbs and at least one vehicle was damaged.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:36:00 to 21-JUN-11 19:36:00 (CST-6)
Location: HINSDALE
Magnitude: 70.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

At least 50 trees were blown down with damage to hundreds of other trees.  Tree limbs fell onto houses and cars.  A transmission line that supplies electricity to the southern half of the city was also blown down, in addition to numerous other power lines.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:47:00 to 21-JUN-11 19:47:00 (CST-6)
Location: NORRIDGE
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

In Harwood Heights, every block had either broken trees or tree limbs.  Some streets were completely blocked by fallen trees.  A few cars were damaged by fallen trees.  One car was damaged by a live powerline when it started a fire.  Numerous other powerlines were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:48:00 to 21-JUN-11 19:48:00 (CST-6)
Location: PARK RIDGE
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Newspaper

Tree limbs, utility poles and power lines were blown down.  A large tree limb fell on a parked car causing significant damage.

Thunderstorm Wind in WILL, ILLINOIS
From 21-JUN-11 19:30:00 to 21-JUN-11 19:30:00 (CST-6)
Location: LOCKPORT LEWIS ARPT
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Winds gusting to 66 mph were measured at the Lewis University Airport AWOS and 60 mph at the National Weather Service office nearby.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:37:00 to 21-JUN-11 19:41:00 (CST-6)
Location: WESTMONT
Magnitude: 65.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winds were estimated between 60 and 75 mph across portions of east-central DuPage County causing numerous branches to fall and power outages.  A large tree fell onto Route 53 approximately one mile north of Roosevelt Road blocking the northbound lane in Lombard.  A 14 inch diameter tree fell onto a car near the intersection of Fordham Way and Longford Drive in Westmont.  Also in Westmont, a neighborhood near 55th Street and Clarendon Hills Road had numerous 10 inch diameter or greater tree limbs blown down.  A garage was heavily damaged by a falling tree in Elmhurst and a large tree was snapped off at its base on Berteau in Elmhurst.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:43:00 to 21-JUN-11 19:43:00 (CST-6)
Location: AVONDALE
Magnitude: 55.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Local media reported that two people were in serious to critical condition after their car was crushed by a falling tree near the intersection of Farragut Avenue and Leavitt Street.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:50:00 to 21-JUN-11 19:50:00 (CST-6)
Location: MORTON GROVE
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large trees were blown down near Dempster Street, approximately two blocks east of Interstate 94.  One tree fell onto a car.  Several 12 inch diameter trees were uprooted near the intersection of Laramie Avenue and Golf Road.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:50:00 to 21-JUN-11 19:50:00 (CST-6)
Location: CUMBERLAND
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Part of the roof of a building on Malmo Drive was ripped off.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:50:00 to 21-JUN-11 19:50:00 (CST-6)
Location: DES PLAINES
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous trees, tree limbs, utility poles and power lines were blown down.  A transformer was completely blown off a utility pole.  A large tree fell onto a house on Oakwood Street but only caused damage to the gutters.  Damage was also reported to netting and fencing at a golf course.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-JUN-11 19:59:00 to 21-JUN-11 19:59:00 (CST-6)
Location: BUFFALO GROVE
Magnitude: 65.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

Hundreds of trees were damaged in and around the Buffalo Grove area.  Utility poles and power lines were also blown down.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-JUN-11 20:00:00 to 21-JUN-11 20:00:00 (CST-6)
Location: DEERFIELD ESTATES
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several tree limbs 6 to 14 inches in diameter were blown down near Milwaukee Avenue and Lake Cook Road.

Thunderstorm Wind in LAKE, ILLINOIS
From 21-JUN-11 20:01:00 to 21-JUN-11 20:01:00 (CST-6)
Location: BLODGETT
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

Tree limbs and power lines were blown down in Highland Park.  A large tree was uprooted along Sheridan Road.  When a back-up generator kicked on at a water plant, it created a pressure surge that blew a fist-sized hole in a water main.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:49:00 to 21-JUN-11 19:49:00 (CST-6)
Location: NILES
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Trees, tree limbs and power lines were blown down.  Over 100 trees were blown down or needed to be completely removed.  Numerous grocery stores and restaurants had to rent refrigerated trucks or ship perishable items to warehouses due to extended power outages.  Three cars were damaged by falling tree limbs including one on Neva Avenue, one on Touhy Avenue and a one on Oakton Street.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:50:00 to 21-JUN-11 19:50:00 (CST-6)
Location: MORTON GROVE
Magnitude: 61.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts were estimated to 70 mph.  Numerous trees, tree limbs and power lines were blown down in Morton Grove.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:54:00 to 21-JUN-11 19:54:00 (CST-6)
Location: ELK GROVE VLG
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts were estimated to 60 mph.  Tree limbs and power lines were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:55:00 to 21-JUN-11 19:55:00 (CST-6)
Location: MT PROSPECT
Magnitude: 70.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous large trees, tree limbs and power lines were blown down.  Several roads were blocked by the fallen trees.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:34:00 to 21-JUN-11 19:34:00 (CST-6)
Location: BROADVIEW
Magnitude: 70.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

A huge oak tree was uprooted along 26th Place in Brookfield.  The tree fell on top of a house, but all of the large limbs remained in the air and no damage was reported to the roof.  Additional trees, tree limbs and power lines were blown down in Brookfield.

Thunderstorm Wind in LA SALLE, ILLINOIS
From 21-JUN-11 17:58:00 to 21-JUN-11 17:58:00 (CST-6)
Location: LOSTANT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winds gusting to 60 mph was measured on Interstate 39 approximately one mile north of Route 18.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:48:00 to 21-JUN-11 19:48:00 (CST-6)
Location: SKOKIE
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous trees, tree limbs and power lines were blown.  Some trees and limbs fell on cars causing damage.  A 40 foot tall tree was completely uprooted on Kolmar Street and fell onto a house.  Twelve inch diameter tree limbs were blown down near Skokie Village Hall.

Lightning in KANE, ILLINOIS
From 21-JUN-11 19:34:00 to 21-JUN-11 19:34:00 (CST-6)
Location: SUGAR GROVE
Property damage: 95.00K
Crop damage: 0.00K
Reported by: Newspaper

A house was struck by lightning on Carol Street causing extensive structural damage.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:35:00 to 21-JUN-11 19:35:00 (CST-6)
Location: DOWNERS GROVE
Magnitude: 56.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

Tree limbs as large as 18 inches in diameter were blown down between the intersections of 63rd and Main Street and 59th Street and Fairview.  Structural damage was also reported to roofs.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:54:00 to 21-JUN-11 19:54:00 (CST-6)
Location: WHEELING
Magnitude: 70.00 MG
Property damage: 750.00K
Crop damage: 0.00K
Reported by: ASOS

Wind gusts to 81 mph were measured at Chicago Executive Airport.  Roof damage was reported to three hangers.  Four airplanes were damaged, with two of them flipped over.  Approximately 1,000 feet of fencing was destroyed.  A willow tree was uprooted on Wolf Road in Wheeling.

Tornado in COOK, ILLINOIS
From 21-JUN-11 19:48:00 to 21-JUN-11 19:50:00 (CST-6)
Location: CUMBERLAND
Tornado F-scale: EF1
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down near the intersection of We Go Trail and Golf Road and moved north-northeast before lifting near the intersection of North Pine Street and Kensington Road.  Most of the damage was fallen trees, a few of which fell onto houses causing structural damage.  An estimated 2,000 trees were damaged in Mt. Prospect with 130 completely blown down or that needed to be removed.  Most of the tree damage was in and near the path of the tornado.

Thunderstorm Wind in WILL, ILLINOIS
From 21-JUN-11 19:10:00 to 21-JUN-11 19:10:00 (CST-6)
Location: ROMEOVILLE
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Winds gusts were estimated to 60 mph near the intersection of Normantown Road and Hudson Avenue.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 21-JUN-11 19:30:00 to 21-JUN-11 19:30:00 (CST-6)
Location: WESTMONT
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A 15 inch diameter tree was split down the middle with a 6 inch diameter branch broken off.

Thunderstorm Wind in LIVINGSTON, ILLINOIS
From 21-JUN-11 18:20:00 to 21-JUN-11 18:20:00 (CST-6)
Location: PONTIAC
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A wind gust to 71 mph was measured in Pontiac.  Several tree limbs were blown down, some onto power lines.

Tornado in DU PAGE, ILLINOIS
From 21-JUN-11 19:31:00 to 21-JUN-11 19:33:00 (CST-6)
Location: THE MEADOWS
Tornado F-scale: EF1
Property damage: 500.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A National Weather Service storm survey confirmed an EF1 tornado touched down near Sunnydale Park and lifted near 55th and Main in Downers Grove.  Most of the damage was to trees.  Many mature hardwood trees had been snapped or knocked down.  A fence was blown down at Downers Grove High School. An estimated 35 homes were damaged by falling trees.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:50:00 to 21-JUN-11 19:50:00 (CST-6)
Location: CUMBERLAND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts were estimated to 60 mph in Des Plaines with multiple large tree limbs blown down near the intersection of Golf Road and Wolf Road.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:39:00 to 21-JUN-11 19:43:00 (CST-6)
Location: CHICAGO
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The City of Chicago Streets and Sanitation reported 1,120 tree emergencies, which can range from a tree limb blown down to an entire tree blown over or uprooted.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:46:00 to 21-JUN-11 19:46:00 (CST-6)
Location: FRANKLIN PARK
Magnitude: 70.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous trees, tree limbs and power lines were blown down.  Many trees fell onto houses and garages.  The roof of an apartment building on Chestnut Street was blown off.

Thunderstorm Wind in MCHENRY, ILLINOIS
From 21-JUN-11 19:45:00 to 21-JUN-11 19:45:00 (CST-6)
Location: LAKE IN THE HILLS
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Three medium sized trees were blown over.

Thunderstorm Wind in WILL, ILLINOIS
From 21-JUN-11 19:34:00 to 21-JUN-11 19:34:00 (CST-6)
Location: BOLINGBROOK
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Small trees were blown down.

Thunderstorm Wind in COOK, ILLINOIS
From 21-JUN-11 19:47:00 to 21-JUN-11 19:47:00 (CST-6)
Location: (ORD)O'HARE INTL ARP
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in WILL, ILLINOIS
From 21-JUN-11 19:25:00 to 21-JUN-11 19:25:00 (CST-6)
Location: BOLINGBROOK
Magnitude: 55.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The sidewall of an aluminum shed was blown down.

Thunderstorm Wind in WILL, ILLINOIS
From 21-JUN-11 19:15:00 to 21-JUN-11 19:15:00 (CST-6)
Location: CREST HILL
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated 65 mph winds occurred near the intersection of Caton Farm Road and Essington Road.