A strong cold front moved through the region, triggering showers and thunderstorms. Numerous reports of large hail, a tornado and some wind damage occurred with these storms.

Hail in WASHINGTON, ILLINOIS
From 08-JUN-09 17:15:00 to 08-JUN-09 17:15:00 (CST-6)
Location: ADDIEVILLE
Magnitude: 1.75 
Reported by: Newspaper

Golfball sized hail fell just north of Addieville causing major siding damage to one home as well as several windows in that home and the home next door.  Crops in the area sustained some hail damage as well.

Hail in MADISON, ILLINOIS
From 08-JUN-09 15:32:00 to 08-JUN-09 15:32:00 (CST-6)
Location: PONTOON BEACH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MADISON, ILLINOIS
From 08-JUN-09 15:41:00 to 08-JUN-09 15:41:00 (CST-6)
Location: ST THOMAS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MADISON, ILLINOIS
From 08-JUN-09 15:42:00 to 08-JUN-09 15:42:00 (CST-6)
Location: POAG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MADISON, ILLINOIS
From 08-JUN-09 15:42:00 to 08-JUN-09 15:42:00 (CST-6)
Location: MITCHELL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MADISON, ILLINOIS
From 08-JUN-09 15:45:00 to 08-JUN-09 15:45:00 (CST-6)
Location: GRANITE CITY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MADISON, ILLINOIS
From 08-JUN-09 15:56:00 to 08-JUN-09 16:04:00 (CST-6)
Location: EDWARDSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in ST. CLAIR, ILLINOIS
From 08-JUN-09 16:30:00 to 08-JUN-09 17:00:00 (CST-6)
Location: SHILOH
Tornado F-scale: EF2
Reported by: NWS Storm Survey

The tornado touched down just northeast of the intersection of North Green Mount Road and Lebanon Avenue in the Eagles Landing Subdivision, where up to 6 homes sustained minor to moderate damage.  From this point the tornado produced a nearly continuous damage path that extended to about 1 mile southeast of the intersection of Highway 4 and Jefferson Road.  It finally lifted as it approached the Kaskaskia River.  The total path length of the tornado is estimated to be 12.8 miles, with an average width of damage of about one-tenth of a mile.  However, straight line winds did cause lesser damage over a wider swath of up to 3 miles. The greatest damage was to a home located just west of the intersection of Highway 4 and Jefferson Road.  Damage there was rated EF2 on the Enhanced Fujita Scale.  Elsewhere along the path of the tornado, the damage was generally in the EF0-EF1 range.

Thunderstorm Wind in ST. CLAIR, ILLINOIS
From 08-JUN-09 16:20:00 to 08-JUN-09 16:30:00 (CST-6)
Location: WILLARD
Magnitude: 56.00 EG
Reported by: NWS Storm Survey

Thunderstorm winds caused damage in O'Fallon and Shiloh.  The junior high school in O'Fallon sustained roof damage.  A two foot diameter tree was blown down onto an unoccupied truck on U.S. Highway 50 near the intersection with N. Green Mount Road.  Numerous other trees and  power lines were blown down.  One tree landed on a house causing moderate damage near the intersection of Main Street and Caroline Street in O'Fallon.

Hail in ST. CLAIR, ILLINOIS
From 08-JUN-09 16:22:00 to 08-JUN-09 16:22:00 (CST-6)
Location: O FALLON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in ST. CLAIR, ILLINOIS
From 08-JUN-09 16:25:00 to 08-JUN-09 16:25:00 (CST-6)
Location: SHILOH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in ST. CLAIR, ILLINOIS
From 08-JUN-09 16:31:00 to 08-JUN-09 16:31:00 (CST-6)
Location: (BLV)SCOTT AFB BELLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in WASHINGTON, ILLINOIS
From 08-JUN-09 17:51:00 to 08-JUN-09 23:30:00 (CST-6)
Location: VENEDY STATION
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Up to three inches of rain fell in a short amount of time causing flash flooding.  Over 12 inches of water was flowing over Illinois Route 177 west of Okawville.  Also, water was over Illinois Route 160 just south of Addieville.

Flash Flood in ST. CLAIR, ILLINOIS
From 08-JUN-09 20:50:00 to 08-JUN-09 23:30:00 (CST-6)
Location: MARISSA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Up to three inches of rain fell in a short amount of time causing flash flooding.  Numerous roads had water over them including Illinois Route 4 at School View Drive and on Lickenbrock School Road a mile north of Darmstadt Road.

Hail in ST. CLAIR, ILLINOIS
From 08-JUN-09 16:45:00 to 08-JUN-09 16:50:00 (CST-6)
Location: MASCOUTAH
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WASHINGTON, ILLINOIS
From 08-JUN-09 17:07:00 to 08-JUN-09 17:10:00 (CST-6)
Location: VENEDY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A large tree was blown down onto the road just north of Venedy and another large tree was blown down on Sandpiper Road south southwest of Okawville.

Hail in MADISON, ILLINOIS
From 08-JUN-09 16:02:00 to 08-JUN-09 16:08:00 (CST-6)
Location: COLLINSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MADISON, ILLINOIS
From 08-JUN-09 16:00:00 to 08-JUN-09 16:08:00 (CST-6)
Location: GLEN CARBON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MADISON, ILLINOIS
From 08-JUN-09 16:07:00 to 08-JUN-09 16:07:00 (CST-6)
Location: TROY CROSSING
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter