Thunderstorms quickly developed as strong daytime heating destabilized the atmosphere. The storms formed into loosely organized clusters, with locally damaging downbursts and isolated large hail. As the afternoon progressed, the storms congealed into a rather large complex of storms with an organized cold pool. Strong gusty winds accompanied the leading edge of the cold pool gust front. The storms formed along and ahead of a cold front that trailed southwest from a low pressure center over northern Indiana. A 500 mb trough extending from the Great Lakes down across the Mississippi Valley provided additional support for storms. Moderately strong mid-level winds contributed to effective bulk wind shear around 35 knots, sufficient for some organization of the convection.

Hail in GALLATIN, ILLINOIS
From 02-JUL-23 12:42:00 to 02-JUL-23 12:42:00 (CST-6)
Location: COTTONWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter-size hail occurred in New Haven.

Hail in WILLIAMSON, ILLINOIS
From 02-JUL-23 12:51:00 to 02-JUL-23 12:51:00 (CST-6)
Location: MARION
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JACKSON, ILLINOIS
From 02-JUL-23 13:10:00 to 02-JUL-23 13:10:00 (CST-6)
Location: CARBONDALE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in EDWARDS, ILLINOIS
From 02-JUL-23 15:35:00 to 02-JUL-23 15:37:00 (CST-6)
Location: ALBION
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Public

A trained spotter reported quarter size hail. The general public reported golf ball size hail.

Thunderstorm Wind in WILLIAMSON, ILLINOIS
From 02-JUL-23 13:32:00 to 02-JUL-23 13:32:00 (CST-6)
Location: HERRIN
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Tree limbs were broken.

Thunderstorm Wind in FRANKLIN, ILLINOIS
From 02-JUL-23 13:45:00 to 02-JUL-23 13:45:00 (CST-6)
Location: WEST FRANKFORT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large branches were blown down.

Thunderstorm Wind in GALLATIN, ILLINOIS
From 02-JUL-23 13:20:00 to 02-JUL-23 13:20:00 (CST-6)
Location: JUNCTION
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: State Official

A tree was down on Illinois Highway 1.

Thunderstorm Wind in EDWARDS, ILLINOIS
From 02-JUL-23 15:24:00 to 02-JUL-23 15:24:00 (CST-6)
Location: ALBION
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Large trees and limbs were down.

Thunderstorm Wind in SALINE, ILLINOIS
From 02-JUL-23 12:40:00 to 02-JUL-23 12:40:00 (CST-6)
Location: GALATIA
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Several large limbs were down. A large oak tree was down on a driveway.

Thunderstorm Wind in MASSAC, ILLINOIS
From 02-JUL-23 14:30:00 to 02-JUL-23 14:36:00 (CST-6)
Location: NEW COLUMBIA
Magnitude: 61.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

At Round Knob, multiple tree branches were scattered around, some of which were large. Outbuildings were lost. A pole was bent over. Near New Columbia, large tree branches were blown down.

Thunderstorm Wind in MASSAC, ILLINOIS
From 02-JUL-23 14:36:00 to 02-JUL-23 14:36:00 (CST-6)
Location: METROPOLIS
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree limb was down on power lines.

Thunderstorm Wind in WILLIAMSON, ILLINOIS
From 02-JUL-23 12:15:00 to 02-JUL-23 12:20:00 (CST-6)
Location: MARION
Magnitude: 61.00 EG
Property damage: 125.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several miles east-southeast of Marion, six homes were damaged, power poles were snapped, and large tree branches were snapped. Around 600 utility customers were without power. A trained spotter three miles south of Marion estimated the wind gusted to 70 mph.

Thunderstorm Wind in SALINE, ILLINOIS
From 02-JUL-23 12:50:00 to 02-JUL-23 12:55:00 (CST-6)
Location: HARRISBURG
Magnitude: 56.00 EG
Property damage: 6.00K
Crop damage: 0.00K
Reported by: Public

Large branches were blown down. A wooden fence was blown over. A tree was down on a house. Peak winds were estimated near 65 mph.

Thunderstorm Wind in WHITE, ILLINOIS
From 02-JUL-23 13:00:00 to 02-JUL-23 13:00:00 (CST-6)
Location: NORRIS CITY
Magnitude: 56.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Public

Trees and tree limbs were blown down. A gate was damaged.

Thunderstorm Wind in MASSAC, ILLINOIS
From 02-JUL-23 15:47:00 to 02-JUL-23 15:54:00 (CST-6)
Location: ROUND KNOB
Magnitude: 61.00 MG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The second damaging wind gust within two hours occurred in the Round Knob and New Columbia areas. Large tree branches and several trees were blown down near New Columbia. A wind gust to 70 mph was reported at Round Knob.