Scattered thunderstorms moved across parts of northern Illinois during the afternoon and evening hours of July 23rd.

Flood in WILL, ILLINOIS
From 23-JUL-17 16:50:00 to 23-JUL-17 18:00:00 (CST-6)
Location: CRYSTAL LAWNS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Standing water 7 to 8 inches deep was reported curb to curb on Infantry Drive.

Thunderstorm Wind in MCHENRY, ILLINOIS
From 23-JUL-17 14:31:00 to 23-JUL-17 14:31:00 (CST-6)
Location: CRYSTAL LAKE
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A three foot diameter tree was blown down.

Hail in COOK, ILLINOIS
From 23-JUL-17 15:04:00 to 23-JUL-17 15:05:00 (CST-6)
Location: HOFFMAN ESTATES
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DU PAGE, ILLINOIS
From 23-JUL-17 15:34:00 to 23-JUL-17 15:36:00 (CST-6)
Location: BARTLETT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Nickel to quarter size hail was reported.

Hail in DU PAGE, ILLINOIS
From 23-JUL-17 15:46:00 to 23-JUL-17 15:46:00 (CST-6)
Location: CAROL STREAM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm Wind in WILL, ILLINOIS
From 23-JUL-17 16:54:00 to 23-JUL-17 16:54:00 (CST-6)
Location: MANHATTAN
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A two foot diameter tree was blown down.

Hail in WILL, ILLINOIS
From 23-JUL-17 16:08:00 to 23-JUL-17 16:10:00 (CST-6)
Location: ROMEOVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm Wind in WILL, ILLINOIS
From 23-JUL-17 16:10:00 to 23-JUL-17 16:13:00 (CST-6)
Location: BOLINGBROOK
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Employee

Wind damage was reported throughout Romeoville with numerous large tree limbs blown down.  Two north side windows were blown out and shingles were peeled away at an apartment complex.  Pieces of roofing were blown off a strip mall.  A metal pool fence was blown off a pool and a young 2 inch diameter tree was uprooted.

Thunderstorm Wind in WILL, ILLINOIS
From 23-JUL-17 16:14:00 to 23-JUL-17 16:15:00 (CST-6)
Location: LOCKPORT
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: NWS Employee

A large part of a roof was blown off a building and an 8 inch diameter tree was blown down.

Thunderstorm Wind in WILL, ILLINOIS
From 23-JUL-17 16:19:00 to 23-JUL-17 16:19:00 (CST-6)
Location: LOCKPORT LEWIS ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several 6+ inch diameter tree limbs were blown down on the Lewis University Campus.

Flood in DU PAGE, ILLINOIS
From 23-JUL-17 15:42:00 to 23-JUL-17 17:00:00 (CST-6)
Location: BARTLETT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Standing water 4 to 12 inches deep was reported on Route 59.

Thunderstorm Wind in WILL, ILLINOIS
From 23-JUL-17 16:00:00 to 23-JUL-17 16:00:00 (CST-6)
Location: PLAINFIELD CLOW ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Numerous tree limbs were blown down on Brookwood Lane off of Boughton Road.  Some tree limbs were as large as one foot in diameter.

Flood in WILL, ILLINOIS
From 23-JUL-17 16:20:00 to 23-JUL-17 17:30:00 (CST-6)
Location: PLAINFIELD CLOW ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Standing water was reported on Brookwood Lane off of Boughton.

Flood in DU PAGE, ILLINOIS
From 23-JUL-17 16:00:00 to 23-JUL-17 17:30:00 (CST-6)
Location: NAPERVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Standing water above wheels of cars was reported on Washington Street at Gartner Road.

Heavy Rain in DU PAGE, ILLINOIS
From 23-JUL-17 15:45:00 to 23-JUL-17 16:30:00 (CST-6)
Location: FRONTEAC
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Rainfall of 2.11 inches was measured in 45 minutes.

Thunderstorm Wind in IROQUOIS, ILLINOIS
From 23-JUL-17 18:14:00 to 23-JUL-17 18:14:00 (CST-6)
Location: WATSEKA
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple utility poles were blown down.

Flood in COOK, ILLINOIS
From 23-JUL-17 15:30:00 to 23-JUL-17 17:00:00 (CST-6)
Location: SCHAUMBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Standing water 6 to 12 inches deep was reported on Schaumburg Road between Braintree Drive and Roselle Road.  One car was reported stalled in the flood waters.

Thunderstorm Wind in WILL, ILLINOIS
From 23-JUL-17 16:05:00 to 23-JUL-17 16:05:00 (CST-6)
Location: BOLINGBROOK
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

House siding damage was reported.

Thunderstorm Wind in KANKAKEE, ILLINOIS
From 23-JUL-17 17:12:00 to 23-JUL-17 17:14:00 (CST-6)
Location: MANTENO
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous large trees and tree limbs were blown down.  Ten utility poles were snapped.

Hail in KANKAKEE, ILLINOIS
From 23-JUL-17 17:22:00 to 23-JUL-17 17:23:00 (CST-6)
Location: BOURBONNAIS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in KANKAKEE, ILLINOIS
From 23-JUL-17 17:15:00 to 23-JUL-17 17:15:00 (CST-6)
Location: INDIAN OAKS
Magnitude: 65.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The roof of a barn was blown off near the intersection of 7000N and 1000W.

Thunderstorm Wind in KANKAKEE, ILLINOIS
From 23-JUL-17 17:27:00 to 23-JUL-17 17:29:00 (CST-6)
Location: BOURBONNAIS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Extensive tree damage was reported in Bradley.  One tree limb two feet in diameter was snapped off.  Wind gusts were estimated between 60 mph and 70 mph.

Thunderstorm Wind in KANKAKEE, ILLINOIS
From 23-JUL-17 17:28:00 to 23-JUL-17 17:28:00 (CST-6)
Location: ALTORF
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A wind gust to 72 mph was measured.

Thunderstorm Wind in KANKAKEE, ILLINOIS
From 23-JUL-17 17:29:00 to 23-JUL-17 17:29:00 (CST-6)
Location: MANTENO ST GEORGE AR
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees and tree limbs were blown down along St. George Road, blocking the road.  Crop damage was also reported.

Thunderstorm Wind in WILL, ILLINOIS
From 23-JUL-17 16:35:00 to 23-JUL-17 16:35:00 (CST-6)
Location: JOLIET
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several large tree limbs were blown down including one blocking a road.

Hail in KANKAKEE, ILLINOIS
From 23-JUL-17 17:19:00 to 23-JUL-17 17:20:00 (CST-6)
Location: MANTENO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BOONE, ILLINOIS
From 23-JUL-17 14:45:00 to 23-JUL-17 14:50:00 (CST-6)
Location: BELVIDERE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail was reported at multiple locations.

Hail in KANE, ILLINOIS
From 23-JUL-17 13:52:00 to 23-JUL-17 13:55:00 (CST-6)
Location: AURORA
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail between nickel and ping pong ball size was reported at multiple locations.