Strong to severe thunderstorms moved across northern Illinois during the evening hours of April 5th into the early morning hours of April 6th.  Large hail and wind damage were reported in many areas.  Hail the size of baseballs was reported in Des Plaines.

Hail in MCHENRY, ILLINOIS
From 06-APR-10 00:15:00 to 06-APR-10 00:16:00 (CST-6)
Location: CRYSTAL LAKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Lightning in COOK, ILLINOIS
From 05-APR-10 21:30:00 to 05-APR-10 21:30:00 (CST-6)
Location: BARTLETT
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

Power lines were blown down onto a house on Cedar Avenue which started a small fire.  The fire damage to the house was minimal but the house sustained smoke damage throughout.

Thunderstorm Wind in MCHENRY, ILLINOIS
From 06-APR-10 00:10:00 to 06-APR-10 00:10:00 (CST-6)
Location: HUNTLEY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A large tree was uprooted along Church Street.

Lightning in OGLE, ILLINOIS
From 05-APR-10 20:30:00 to 05-APR-10 20:30:00 (CST-6)
Location: ROCHELLE
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Newspaper

The Rochelle police department's antenna was struck by lightning.  The lightning travelled down the antenna and damaged a police car and then damaged all three of their dispatch stations.

Thunderstorm Wind in LEE, ILLINOIS
From 05-APR-10 20:15:00 to 05-APR-10 20:15:00 (CST-6)
Location: FRANKLIN GROVE
Magnitude: 56.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Newspaper

Two utility poles and a power line were blown down near Daysville and Nalor Roads.

Thunderstorm Wind in OGLE, ILLINOIS
From 05-APR-10 20:35:00 to 05-APR-10 20:35:00 (CST-6)
Location: CRESTON
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Barns were destroyed and a roof was taken off a cattle shelter near Woodlawn and Fairview.

Thunderstorm Wind in DE KALB, ILLINOIS
From 05-APR-10 20:40:00 to 05-APR-10 20:40:00 (CST-6)
Location: MALTA
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A barn was destroyed.

Hail in KANE, ILLINOIS
From 05-APR-10 21:20:00 to 05-APR-10 21:21:00 (CST-6)
Location: DUNDEE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel size hail was reported one mile east northeast of West Highland Acres.

Hail in KANE, ILLINOIS
From 05-APR-10 21:20:00 to 05-APR-10 21:21:00 (CST-6)
Location: ELGIN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in DU PAGE, ILLINOIS
From 05-APR-10 21:25:00 to 05-APR-10 21:25:00 (CST-6)
Location: WEST CHICAGO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree limbs were blown down along with 75 feet of wooden fence.

Hail in DU PAGE, ILLINOIS
From 05-APR-10 21:28:00 to 05-APR-10 21:29:00 (CST-6)
Location: HANOVER PARK
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail was reported near Route 20 and Naperville Road.

Hail in MCHENRY, ILLINOIS
From 05-APR-10 21:27:00 to 05-APR-10 21:28:00 (CST-6)
Location: SILVER LAKES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail was reported at Dartmouth Drive and Newport Drive.

Thunderstorm Wind in MCHENRY, ILLINOIS
From 05-APR-10 21:27:00 to 05-APR-10 21:27:00 (CST-6)
Location: SILVER LAKES
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A gust to 60 mph was estimated in Island Lake.

Hail in COOK, ILLINOIS
From 05-APR-10 21:30:00 to 05-APR-10 21:31:00 (CST-6)
Location: STREAMWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COOK, ILLINOIS
From 05-APR-10 20:30:00 to 05-APR-10 20:31:00 (CST-6)
Location: HOFFMAN ESTATES
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DU PAGE, ILLINOIS
From 05-APR-10 21:30:00 to 05-APR-10 21:30:00 (CST-6)
Location: HANOVER PARK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in OGLE, ILLINOIS
From 05-APR-10 20:02:00 to 05-APR-10 20:02:00 (CST-6)
Location: BUFFALO GROVE
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

The roof of a hog house was blown off along Eagle Point Road.

Thunderstorm Wind in OGLE, ILLINOIS
From 05-APR-10 20:05:00 to 05-APR-10 20:05:00 (CST-6)
Location: BUFFALO
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Newspaper

A grain elevator was damaged at a farm on Canada Road.  Part of the elevator fell onto a machine shed and damaged a boat.

Hail in COOK, ILLINOIS
From 05-APR-10 21:35:00 to 05-APR-10 21:36:00 (CST-6)
Location: DES PLAINES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COOK, ILLINOIS
From 05-APR-10 21:55:00 to 05-APR-10 21:56:00 (CST-6)
Location: EVANSTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COOK, ILLINOIS
From 05-APR-10 21:54:00 to 05-APR-10 21:55:00 (CST-6)
Location: NILES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in COOK, ILLINOIS
From 05-APR-10 20:35:00 to 05-APR-10 20:45:00 (CST-6)
Location: HOFFMAN ESTATES
Magnitude: 1.25 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail ranging in size from a penny to a half dollar lasted for about 10 minutes causing minor damage to cars and trees.

Thunderstorm Wind in KANE, ILLINOIS
From 05-APR-10 21:01:00 to 05-APR-10 21:01:00 (CST-6)
Location: MAPLE PARK
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A wind gust to 70 mph was measured in Maple Park.

Hail in COOK, ILLINOIS
From 05-APR-10 21:32:00 to 05-APR-10 21:34:00 (CST-6)
Location: STREAMWOOD
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MCHENRY, ILLINOIS
From 05-APR-10 23:59:00 to 05-APR-10 23:59:00 (CST-6)
Location: MARENGO
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and tree limbs were blown down.  Structural damage was reported to one building.

Thunderstorm Wind in MCHENRY, ILLINOIS
From 06-APR-10 00:00:00 to 06-APR-10 00:00:00 (CST-6)
Location: MARENGO
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A barn was blown down.

Hail in OGLE, ILLINOIS
From 05-APR-10 20:10:00 to 05-APR-10 20:11:00 (CST-6)
Location: FORRESTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in OGLE, ILLINOIS
From 05-APR-10 20:10:00 to 05-APR-10 20:11:00 (CST-6)
Location: MT MORRIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in DU PAGE, ILLINOIS
From 05-APR-10 21:36:00 to 05-APR-10 21:37:00 (CST-6)
Location: ITASCA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COOK, ILLINOIS
From 05-APR-10 21:38:00 to 05-APR-10 21:39:00 (CST-6)
Location: ARLINGTON HGTS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COOK, ILLINOIS
From 05-APR-10 21:41:00 to 05-APR-10 21:42:00 (CST-6)
Location: STREAMWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in COOK, ILLINOIS
From 05-APR-10 21:47:00 to 05-APR-10 21:47:00 (CST-6)
Location: (ORD)O'HARE INTL ARP
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Hail in COOK, ILLINOIS
From 05-APR-10 21:48:00 to 05-APR-10 21:49:00 (CST-6)
Location: SCHAUMBURG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COOK, ILLINOIS
From 05-APR-10 21:49:00 to 05-APR-10 21:50:00 (CST-6)
Location: MORTON GROVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in COOK, ILLINOIS
From 05-APR-10 21:50:00 to 05-APR-10 21:51:00 (CST-6)
Location: EVANSTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COOK, ILLINOIS
From 05-APR-10 21:50:00 to 05-APR-10 21:52:00 (CST-6)
Location: PARK RIDGE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COOK, ILLINOIS
From 05-APR-10 21:50:00 to 05-APR-10 21:53:00 (CST-6)
Location: NILES
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in COOK, ILLINOIS
From 05-APR-10 21:52:00 to 05-APR-10 21:56:00 (CST-6)
Location: CUMBERLAND
Magnitude: 2.75 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Baseball size hail was reported near Wolf and Golf Roads.  The hail broke numerous windows.

Hail in COOK, ILLINOIS
From 05-APR-10 21:53:00 to 05-APR-10 21:54:00 (CST-6)
Location: FOREST GLEN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Penny size hail was reported near Harlem Avenue and Northwest Highway.

Hail in COOK, ILLINOIS
From 05-APR-10 21:55:00 to 05-APR-10 21:56:00 (CST-6)
Location: NILES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in COOK, ILLINOIS
From 05-APR-10 21:57:00 to 05-APR-10 22:02:00 (CST-6)
Location: EVANSTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in OGLE, ILLINOIS
From 05-APR-10 20:15:00 to 05-APR-10 20:15:00 (CST-6)
Location: OREGON
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees, tree limbs and power lines were blown down.  One tree fell onto a house.

Hail in WINNEBAGO, ILLINOIS
From 05-APR-10 20:35:00 to 05-APR-10 20:36:00 (CST-6)
Location: ROCKFORD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny size hail was reported on the south side of Rockford.

Thunderstorm Wind in DE KALB, ILLINOIS
From 05-APR-10 20:45:00 to 05-APR-10 20:45:00 (CST-6)
Location: SYCAMORE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were blown down on Barber Greene Road east of Airport Road.

Hail in DE KALB, ILLINOIS
From 05-APR-10 20:50:00 to 05-APR-10 20:51:00 (CST-6)
Location: DE KALB
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in KANE, ILLINOIS
From 05-APR-10 21:13:00 to 05-APR-10 21:14:00 (CST-6)
Location: COLEMAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail was reported at Spring and Wedgewood.

Hail in KANE, ILLINOIS
From 05-APR-10 21:17:00 to 05-APR-10 21:18:00 (CST-6)
Location: DUNDEE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Penny size hail was reported near Interstate 90 and Randall Road.

Thunderstorm Wind in MCHENRY, ILLINOIS
From 06-APR-10 00:15:00 to 06-APR-10 00:15:00 (CST-6)
Location: CRYSTAL LAKE
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees, tree limbs, utility poles and power lines were blown down in many areas of Crystal Lake.

Hail in OGLE, ILLINOIS
From 05-APR-10 22:28:00 to 05-APR-10 22:29:00 (CST-6)
Location: MT MORRIS
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WINNEBAGO, ILLINOIS
From 05-APR-10 23:35:00 to 05-APR-10 23:35:00 (CST-6)
Location: ROCKFORD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were reported to be snapped off on the northeast side of Rockford.

Hail in OGLE, ILLINOIS
From 05-APR-10 23:35:00 to 05-APR-10 23:36:00 (CST-6)
Location: OREGON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in DE KALB, ILLINOIS
From 05-APR-10 20:45:00 to 05-APR-10 20:45:00 (CST-6)
Location: HART
Magnitude: 55.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were blown down along Route 72 on the west side of Genoa.  Powerlines were also blown down.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 05-APR-10 21:41:00 to 05-APR-10 21:41:00 (CST-6)
Location: BENSENVILLE
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

The roof on two industrial buildings was blown off near County Line Road and Third Avenue.  A brick wall of one of the buildings also collapsed.

Thunderstorm Wind in DU PAGE, ILLINOIS
From 05-APR-10 21:40:00 to 05-APR-10 21:40:00 (CST-6)
Location: BENSENVILLE
Magnitude: 56.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and tree limbs were blown down.  Four houses suffered roof damage.

Thunderstorm Wind in MCHENRY, ILLINOIS
From 06-APR-10 00:10:00 to 06-APR-10 00:10:00 (CST-6)
Location: HUNTLEY
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A large tree was blown down near Reed Road and Route 47.

Thunderstorm Wind in MCHENRY, ILLINOIS
From 06-APR-10 00:10:00 to 06-APR-10 00:10:00 (CST-6)
Location: HUNTLEY
Magnitude: 51.00 MG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A gust to 59 mph was measured in Huntley.  Tree limbs, utility poles and power lines were blown down.

Thunderstorm Wind in OGLE, ILLINOIS
From 05-APR-10 20:28:00 to 05-APR-10 20:28:00 (CST-6)
Location: ROCHELLE
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two semi trucks were blown over along Interstate 39 and one on Interstate 88.  One driver was taken to the hospital.

Thunderstorm Wind in LEE, ILLINOIS
From 05-APR-10 20:15:00 to 05-APR-10 20:15:00 (CST-6)
Location: FRANKLIN GROVE
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A wind gust to 60 mph was measured in Franklin Grove.

Thunderstorm Wind in OGLE, ILLINOIS
From 05-APR-10 20:00:00 to 05-APR-10 20:00:00 (CST-6)
Location: HAZELHURST
Magnitude: 70.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Newspaper

A corn crib was completely destroyed along Brookville Road, spilling about 18,000 bushels of corn.  A machine shed was also destroyed at the same location.  Roof and window damage was reported to other buildings in the area.  Trees, tree limbs and power lines were also blown down.  Windows were broken on a tractor.

Thunderstorm Wind in OGLE, ILLINOIS
From 05-APR-10 20:02:00 to 05-APR-10 20:02:00 (CST-6)
Location: POLO
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down just west of Polo.

Hail in COOK, ILLINOIS
From 05-APR-10 21:55:00 to 05-APR-10 21:56:00 (CST-6)
Location: SKOKIE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in DU PAGE, ILLINOIS
From 05-APR-10 21:40:00 to 05-APR-10 21:40:00 (CST-6)
Location: BENSENVILLE
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Newspaper

Most of the roof of an auto shop on Green Street was blown off.

Thunderstorm Wind in WINNEBAGO, ILLINOIS
From 05-APR-10 23:30:00 to 05-APR-10 23:30:00 (CST-6)
Location: ROCKFORD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down on the east side of Rockford.

Hail in COOK, ILLINOIS
From 05-APR-10 21:37:00 to 05-APR-10 21:39:00 (CST-6)
Location: ROSEMONT
Magnitude: 1.50 
Property damage: 868.00K
Crop damage: 0.00K
Reported by: Newspaper

The roof of the All State Arena was damaged by hail and had to be replaced.

Hail in COOK, ILLINOIS
From 05-APR-10 21:35:00 to 05-APR-10 21:36:00 (CST-6)
Location: ROLLING MEADOWS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public