A slow-moving cold front triggered thunderstorms across western Illinois during the late afternoon of May 7th.  The storms spread southeastward across south-central Illinois during the evening hours, producing numerous reports of large hail and damaging winds mainly along and south of a Petersburg...to Lincoln...to Effingham line.

Hail in MENARD, ILLINOIS
From 07-MAY-09 16:05:00 to 07-MAY-09 16:06:00 (CST-6)
Location: PETERSBURG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in MENARD, ILLINOIS
From 07-MAY-09 16:11:00 to 07-MAY-09 16:12:00 (CST-6)
Location: PETERSBURG
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in SANGAMON, ILLINOIS
From 07-MAY-09 16:23:00 to 07-MAY-09 16:24:00 (CST-6)
Location: WILLIAMSVILLE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in SANGAMON, ILLINOIS
From 07-MAY-09 16:28:00 to 07-MAY-09 16:29:00 (CST-6)
Location: WILLIAMSVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SANGAMON, ILLINOIS
From 07-MAY-09 16:36:00 to 07-MAY-09 16:37:00 (CST-6)
Location: WILLIAMSVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in SANGAMON, ILLINOIS
From 07-MAY-09 17:01:00 to 07-MAY-09 17:02:00 (CST-6)
Location: WILLIAMSVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SANGAMON, ILLINOIS
From 07-MAY-09 17:03:00 to 07-MAY-09 17:04:00 (CST-6)
Location: DIVERNON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in CHRISTIAN, ILLINOIS
From 07-MAY-09 17:32:00 to 07-MAY-09 17:33:00 (CST-6)
Location: PALMER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in CHRISTIAN, ILLINOIS
From 07-MAY-09 17:43:00 to 07-MAY-09 17:44:00 (CST-6)
Location: PALMER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHRISTIAN, ILLINOIS
From 07-MAY-09 18:37:00 to 07-MAY-09 18:38:00 (CST-6)
Location: STONINGTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SHELBY, ILLINOIS
From 07-MAY-09 19:06:00 to 07-MAY-09 19:07:00 (CST-6)
Location: MOWEAQUA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CUMBERLAND, ILLINOIS
From 07-MAY-09 19:25:00 to 07-MAY-09 19:26:00 (CST-6)
Location: TOLEDO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in MENARD, ILLINOIS
From 07-MAY-09 16:10:00 to 07-MAY-09 16:11:00 (CST-6)
Location: GREENVIEW
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Mesonet

Several branches were blown down in eastern Menard County.

Thunderstorm Wind in MENARD, ILLINOIS
From 07-MAY-09 16:11:00 to 07-MAY-09 16:12:00 (CST-6)
Location: GREENVIEW
Magnitude: 52.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A power pole was knocked down and shingles were blown off a roof.

Thunderstorm Wind in CUMBERLAND, ILLINOIS
From 07-MAY-09 19:00:00 to 07-MAY-09 19:01:00 (CST-6)
Location: NEOGA
Magnitude: 61.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several semi-trailers were blown off of I-57 at milepost 179.

Hail in CUMBERLAND, ILLINOIS
From 07-MAY-09 19:35:00 to 07-MAY-09 19:36:00 (CST-6)
Location: GREENUP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement