An outbreak of severe thunderstorms occurred during the late afternoon and early evening. There were scattered to numerous reports of wind damage, including a couple of destructive wind events with speeds to 80 mph or greater. The storms initially formed as cells or small clusters, which produced large hail and marginally severe wind. Later in the outbreak, the storms evolved into a couple of bowing lines with rather widespread damaging winds. The storms developed in response to a rather amplified 500 mb shortwave trough that progressed east into Iowa and Missouri by nightfall. With daytime heating, the atmosphere became very unstable in the afternoon. Mixed-layer capes were around 3000 j/kg late in the day. A belt of 35 to 45 knot mid-level west-southwesterly winds resulted in sufficient deep-layer wind shear for organized storm structures.

Thunderstorm Wind in JACKSON, ILLINOIS
From 01-JUL-23 14:42:00 to 01-JUL-23 14:42:00 (CST-6)
Location: MURPHYSBORO
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A pecan tree was split, and a trampoline was lofted and thrown some distance.

Thunderstorm Wind in UNION, ILLINOIS
From 01-JUL-23 16:09:00 to 01-JUL-23 16:09:00 (CST-6)
Location: DONGOLA
Magnitude: 61.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Several trees were snapped, and some power lines were down. Some roof damage also occurred.

Hail in PERRY, ILLINOIS
From 01-JUL-23 14:09:00 to 01-JUL-23 14:15:00 (CST-6)
Location: TAMAROA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Half dollar to golf ball size hail was reported.

Thunderstorm Wind in HAMILTON, ILLINOIS
From 01-JUL-23 16:46:00 to 01-JUL-23 16:55:00 (CST-6)
Location: DAHLGREN
Magnitude: 70.00 EG
Reported by: Emergency Manager

Widespread wind damage occurred across western and northern Hamilton County. Twenty large branches or trees fell across State Routes 142 and 14, which blocked the roadway. Multiple small sheds and outbuildings were destroyed. A roof was blown off a barn. A metal sunroom was blown off the side of a house. A metal pavilion was blown across a road.

Thunderstorm Wind in WABASH, ILLINOIS
From 01-JUL-23 17:16:00 to 01-JUL-23 17:23:00 (CST-6)
Location: MT CARMEL
Magnitude: 74.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees were uprooted and snapped. A roof was partially blown off of a church. Power poles were broken. Vehicle traffic was impeded by the wind. A trained spotter estimated peak winds were 80 to 90 mph.

Thunderstorm Wind in FRANKLIN, ILLINOIS
From 01-JUL-23 15:22:00 to 01-JUL-23 15:27:00 (CST-6)
Location: WEST FRANKFORT
Magnitude: 56.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Trained Spotter

In West Frankfort, three trees were down. A trained spotter estimated peak winds were near 60 mph. Just south of Benton, trees were down near State Route 37 and Yellow Banks Road.

Hail in FRANKLIN, ILLINOIS
From 01-JUL-23 15:22:00 to 01-JUL-23 15:22:00 (CST-6)
Location: WEST FRANKFORT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in JEFFERSON, ILLINOIS
From 01-JUL-23 16:19:00 to 01-JUL-23 16:19:00 (CST-6)
Location: MT VERNON
Magnitude: 56.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down on power lines.

Thunderstorm Wind in EDWARDS, ILLINOIS
From 01-JUL-23 16:51:00 to 01-JUL-23 16:51:00 (CST-6)
Location: ALBION
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and power lines were down.

Thunderstorm Wind in FRANKLIN, ILLINOIS
From 01-JUL-23 16:22:00 to 01-JUL-23 16:36:00 (CST-6)
Location: CHRISTOPHER
Magnitude: 56.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were down countywide, primarily in central and northwest areas of the county.

Thunderstorm Wind in JOHNSON, ILLINOIS
From 01-JUL-23 16:25:00 to 01-JUL-23 16:25:00 (CST-6)
Location: VIENNA
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Trees were uprooted and snapped.

Thunderstorm Wind in MASSAC, ILLINOIS
From 01-JUL-23 23:45:00 to 01-JUL-23 23:45:00 (CST-6)
Location: MERMET
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large trees were down, uprooted and snapped.

Hail in EDWARDS, ILLINOIS
From 01-JUL-23 16:51:00 to 01-JUL-23 16:51:00 (CST-6)
Location: ALBION
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Unknown