A mesoscale convective complex moved east across forecast area. There were numerous reports of damaging winds as well as some large hail.

Thunderstorm Wind in MADISON, ILLINOIS
From 23-JUL-17 02:15:00 to 23-JUL-17 02:56:00 (CST-6)
Location: ST THOMAS
Magnitude: 63.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Damaging thunderstorm winds affected most of Madison County. The strongest corridor of damaging winds was along I-270/I-70. In Alton, a large tree was snapped off. Just east southeast of Marine, a turkey tractor was moved 10 feet and split in half. All the turkeys survived. Also, there was additional wind damage to crops and trees in this area. Overall, numerous trees, tree limbs and power lines were blown down.

Thunderstorm Wind in MACOUPIN, ILLINOIS
From 23-JUL-17 02:30:00 to 23-JUL-17 02:30:00 (CST-6)
Location: BRIGHTON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds blew down numerous large tree limbs around town.

Thunderstorm Wind in CLINTON, ILLINOIS
From 23-JUL-17 03:15:00 to 23-JUL-17 03:15:00 (CST-6)
Location: CARLYLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds blew down a large tree in town.

Thunderstorm Wind in BOND, ILLINOIS
From 23-JUL-17 03:25:00 to 23-JUL-17 03:25:00 (CST-6)
Location: MULBERRY GROVE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds blew down several large tree limbs around town.

Thunderstorm Wind in MARION, ILLINOIS
From 23-JUL-17 03:32:00 to 23-JUL-17 03:50:00 (CST-6)
Location: CENTRALIA
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm winds snapped off 3 power poles in Centralia and uprooted one large tree. In Salem, several large tree limbs were blown down and broke one telephone pole.

Thunderstorm Wind in FAYETTE, ILLINOIS
From 23-JUL-17 03:35:00 to 23-JUL-17 03:35:00 (CST-6)
Location: VANDALIA ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Hail in GREENE, ILLINOIS
From 23-JUL-17 15:49:00 to 23-JUL-17 15:49:00 (CST-6)
Location: ATHENSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ST. CLAIR, ILLINOIS
From 23-JUL-17 02:35:00 to 23-JUL-17 02:35:00 (CST-6)
Location: BELLEVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in ST. CLAIR, ILLINOIS
From 23-JUL-17 02:30:00 to 23-JUL-17 02:41:00 (CST-6)
Location: SWANSEA
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm winds blew down numerous large tree limbs. In Belleville, two large tree limbs fell onto the roof of a house causing moderate roof damage.

Thunderstorm Wind in MONTGOMERY, ILLINOIS
From 23-JUL-17 03:05:00 to 23-JUL-17 03:18:00 (CST-6)
Location: LITCHFIELD
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm winds caused minor damage to buildings at a business on the west side of Litchfield. In Raymond, numerous tree limbs were blown down and some shingles were blown off roofs.