An upper level system moved northeast through the region, triggering showers and thunderstorms.  Some of the storms produced large hail, damaging winds and tornadoes.

Thunderstorm Wind in FAYETTE, ILLINOIS
From 19-AUG-09 16:35:00 to 19-AUG-09 16:40:00 (CST-6)
Location: VANDALIA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

National Weather Service personnel did  a survey of the damage in the Vandalia area and determined that it was straight line wind damage.  Numerous large tree limbs, trees and power lines were blown down.  Overall the damage was produced by 50 to 60 mph winds.  However, there were two areas of damage that suggested slightly higher wind speeds.  One area was a corn field about a mile west of the U.S. Highway 40-Interstate 70 interchange that was completely flattened.  The other area of slightly higher winds was over southern sections of Vandalia.  Tree damage here was a bit more extensive and two large trees were totally uprooted by the winds.  There was also some minor damage to two metal roofs in the area.

Thunderstorm Wind in ADAMS, ILLINOIS
From 19-AUG-09 12:10:00 to 19-AUG-09 12:10:00 (CST-6)
Location: CLAYTON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds blew part of a machine shed roof off.

Thunderstorm Wind in MONTGOMERY, ILLINOIS
From 19-AUG-09 15:12:00 to 19-AUG-09 15:12:00 (CST-6)
Location: HILLSBORO
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds blew down numerous large tree limbs and a 30 inch diameter oak tree was snapped off near the base.

Hail in BOND, ILLINOIS
From 19-AUG-09 15:52:00 to 19-AUG-09 15:52:00 (CST-6)
Location: DURLEY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail fell througout Greenville.

Hail in BOND, ILLINOIS
From 19-AUG-09 15:55:00 to 19-AUG-09 15:55:00 (CST-6)
Location: DURLEY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Golfball sized hail was reported on the east side of Greenville at the golf course.

Hail in BOND, ILLINOIS
From 19-AUG-09 16:04:00 to 19-AUG-09 16:04:00 (CST-6)
Location: SMITHBORO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FAYETTE, ILLINOIS
From 19-AUG-09 17:35:00 to 19-AUG-09 17:37:00 (CST-6)
Location: RAMSEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in GREENE, ILLINOIS
From 19-AUG-09 13:10:00 to 19-AUG-09 13:14:00 (CST-6)
Location: BARROW
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down just north of Barrow near Illinois Route 106 and travelled to the northeast crossing County Line Road east of the railroad tracks into Scott County (WFO Lincoln's CWA).  Damage was confined to trees and rated EF0 on the Enhanced Fujita scale.

Thunderstorm Wind in BOND, ILLINOIS
From 19-AUG-09 16:04:00 to 19-AUG-09 16:04:00 (CST-6)
Location: SMITHBORO
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large tree limbs, trees and power lines were blown down.  One tree fell on a house in town causing minor roof damage.

Hail in FAYETTE, ILLINOIS
From 19-AUG-09 16:33:00 to 19-AUG-09 16:33:00 (CST-6)
Location: VANDALIA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in BOND, ILLINOIS
From 19-AUG-09 15:53:00 to 19-AUG-09 16:00:00 (CST-6)
Location: DURLEY
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees and power lines were blown down through out Greenville.  A two foot diameter tree was snapped off and landed on Illinois Route 140 on the east side of town. Also, one tree fell onto a house causing minor roof damage and another tree fell onto a unoccupied car damaging it.

Thunderstorm Wind in ADAMS, ILLINOIS
From 19-AUG-09 11:50:00 to 19-AUG-09 11:50:00 (CST-6)
Location: LIBERTY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds tore off part of the roof of a business's machine shed about 3 miles southeast of Quincy Regional Airport and threw the debris several hundred feet across Illinois Route 104.

Thunderstorm Wind in MACOUPIN, ILLINOIS
From 19-AUG-09 14:25:00 to 19-AUG-09 14:25:00 (CST-6)
Location: GIRARD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Numerous large tree limbs and power lines were blown down throughout town.