Supercells formed in the early afternoon near Peoria, to the southeast of a surface low over eastern Iowa and out ahead of its associated cold front. Storms produced large hail, damaging winds, and heavy rain leading to isolated flash flooding. The strongest storm impacted Tazewell County, producing hail as large as three inches in diameter and rainfall amounts of four to five inches. Into the evening, storms transitioned into a cluster that progressed east, producing sporadic small hail and continued heavy rainfall.

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 13:55:00 to 20-AUG-22 14:00:00 (CST-6)
Location: WASHINGTON
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail resulted in damage to siding.

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 14:34:00 to 20-AUG-22 14:39:00 (CST-6)
Location: CREVE COEUR
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public report from mPING.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 20-AUG-22 13:20:00 to 20-AUG-22 13:25:00 (CST-6)
Location: PEORIA HGTS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Three inch tree limbs broken. Report from mPING.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 20-AUG-22 13:33:00 to 20-AUG-22 13:38:00 (CST-6)
Location: WASHINGTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Estimated winds gusts to 60 mph.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 20-AUG-22 13:32:00 to 20-AUG-22 13:37:00 (CST-6)
Location: EAST PEORIA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Small tree limbs blown down. Report from mPING.

Hail in PEORIA, ILLINOIS
From 20-AUG-22 13:00:00 to 20-AUG-22 13:05:00 (CST-6)
Location: CHILLICOTHE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter sized hail mixed with smaller hail.

Hail in PEORIA, ILLINOIS
From 20-AUG-22 13:00:00 to 20-AUG-22 13:05:00 (CST-6)
Location: CHILLICOTHE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Nickel sized hail lasted around 3 to 4 minutes.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 20-AUG-22 13:30:00 to 20-AUG-22 13:35:00 (CST-6)
Location: PEORIA HGTS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A 12 inch diameter tree limb broke and damaged roof.

Thunderstorm Wind in TAZEWELL, ILLINOIS
From 20-AUG-22 13:30:00 to 20-AUG-22 13:35:00 (CST-6)
Location: EAST PEORIA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Large windows broken and metal roof damaged.

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 13:30:00 to 20-AUG-22 13:35:00 (CST-6)
Location: WASHINGTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Hail shredded leaves.

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 13:55:00 to 20-AUG-22 14:00:00 (CST-6)
Location: EAST PEORIA
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in MARSHALL, ILLINOIS
From 20-AUG-22 13:20:00 to 20-AUG-22 13:25:00 (CST-6)
Location: LACON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Size estimated from picture.

Hail in MARSHALL, ILLINOIS
From 20-AUG-22 13:20:00 to 20-AUG-22 13:25:00 (CST-6)
Location: LACON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MARSHALL, ILLINOIS
From 20-AUG-22 13:20:00 to 20-AUG-22 13:25:00 (CST-6)
Location: SPARLAND
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 13:30:00 to 20-AUG-22 13:35:00 (CST-6)
Location: TRAIL PARK GARDENS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 13:33:00 to 20-AUG-22 13:38:00 (CST-6)
Location: WASHINGTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 13:35:00 to 20-AUG-22 13:40:00 (CST-6)
Location: EAST PEORIA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 13:39:00 to 20-AUG-22 13:44:00 (CST-6)
Location: WASHINGTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 13:40:00 to 20-AUG-22 13:45:00 (CST-6)
Location: WASHINGTON
Magnitude: 3.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 13:43:00 to 20-AUG-22 13:48:00 (CST-6)
Location: WASHINGTON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public report from mPING.

Hail in TAZEWELL, ILLINOIS
From 20-AUG-22 13:45:00 to 20-AUG-22 13:50:00 (CST-6)
Location: WASHINGTON
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in TAZEWELL, ILLINOIS
From 20-AUG-22 15:00:00 to 20-AUG-22 17:45:00 (CST-6)
Location: WASHINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Six to 15 inches of water reported over several roadways in Washington.