Strong thunderstorms produced heavy rain and flooding across northern Illinois. Several funnel clouds and a brief land spout tornado were also reported.

Heavy Rain in GRUNDY, ILLINOIS
From 30-MAY-18 15:00:00 to 30-MAY-18 15:45:00 (CST-6)
Location: CARBON HILL
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Rainfall of 1.29 inches was measured in 45 minutes.

Heavy Rain in COOK, ILLINOIS
From 30-MAY-18 15:30:00 to 30-MAY-18 16:35:00 (CST-6)
Location: SCHAUMBURG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Rainfall of 2.90 inches was measured in less than one hour.

Flood in KENDALL, ILLINOIS
From 30-MAY-18 15:10:00 to 30-MAY-18 18:00:00 (CST-6)
Location: OSWEGO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Residential flooding was reported in the Southbury subdivision.  The intersection of Southbury Blvd and Colchester Drive was flooded with water over the curb and up to the sidewalk.

Flood in COOK, ILLINOIS
From 30-MAY-18 17:46:00 to 30-MAY-18 21:00:00 (CST-6)
Location: SCHAUMBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The intersection of Roselle Road and Higgins Road was closed due to flooding.

Flash Flood in COOK, ILLINOIS
From 30-MAY-18 16:30:00 to 30-MAY-18 22:00:00 (CST-6)
Location: BARRINGTON
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Very heavy rain caused widespread flooding across parts of northern Cook County.  In Rolling Meadows, people were stuck on the roofs of cars at an apartment complex on Arbor Drive.  Standing water 12 to 18 inches deep was reported on Rohlwing Road between Kirchoff and Euclid and also between Industrial Highway and Route 14.  Flowing water at least 6 inches deep was reported on Euclid Road near Rohlwing Road.  Water up to one foot deep was reported in the curb lanes of Industrial Avenue, west of Route 53.  In Schaumburg, several cars were underwater in a flooded parking lot.  A vehicle was stuck in flood waters on National Parkway and the occupants needed to be rescued.  Storm total rainfall amounts included 4.48 inches in Barrington; 3.07 inches two miles east of Schaumburg and 2.72 inches two miles west southwest of Elk Grove Village.

Flood in KANE, ILLINOIS
From 30-MAY-18 14:55:00 to 30-MAY-18 18:00:00 (CST-6)
Location: BIG ROCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flowing water was reported at Jericho and Garnart Roads.  Rapid rising water was filling ditches and fields.  Rainfall of 1.63 inches was measured at the Sugar Grove (KARR) Airport.

Flash Flood in DU PAGE, ILLINOIS
From 30-MAY-18 17:21:00 to 30-MAY-18 21:30:00 (CST-6)
Location: ITASCA
Flood cause: Heavy Rain
Property damage: 300.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread flooding was reported in Addison, particularly on the west side with major roads flooded.  Approximately 100 homes suffered flood damage and as many as 20 vehicles needed to be towed due to flood damage.  In Villa Park, a section of southbound Ardmore at North Avenue was closed due to flooding.  Addison Road was closed from North Avenue to Armitage Avenue and the fire department had to perform one water rescue.  In Elmhurst, a flood prone underpass in downtown was flooded.  Route 83 was closed between St. Charles Road and North Avenue.  About 6 inches of standing water was reported across all lanes of traffic of North Avenue.  Storm total rainfall amounts included 3.08 inches one mile east southeast of Roselle; 2.99 inches one mile north northwest of Lombard; 2.86 inches one mile northwest of Villa Park and 1.64 inches two miles southeast of Elmhurst.

Tornado in LA SALLE, ILLINOIS
From 30-MAY-18 18:30:00 to 30-MAY-18 18:50:00 (CST-6)
Location: (MMO)MARSEILLES
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser took video and photos of a weak and slow moving land spout tornado northeast of Marseilles, IL.  No known damage occurred with this tornado.

Flood in COOK, ILLINOIS
From 30-MAY-18 16:26:00 to 30-MAY-18 19:00:00 (CST-6)
Location: SUTTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Approximately five inches of flowing water was reported on Shoe Factory Road, east of Bartlett Road.

Heavy Rain in KANE, ILLINOIS
From 30-MAY-18 14:20:00 to 30-MAY-18 15:50:00 (CST-6)
Location: DUNDEE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Rainfall of 3.67 inches was measured in 90 minutes.

Heavy Rain in KANE, ILLINOIS
From 30-MAY-18 14:35:00 to 30-MAY-18 15:20:00 (CST-6)
Location: SOUTH PARK
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Rainfall of 1.86 inches was reported in 45 minutes.

Flood in KANE, ILLINOIS
From 30-MAY-18 15:15:00 to 30-MAY-18 17:30:00 (CST-6)
Location: ELGIN ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Five to six inches of standing water was reported on Liberty Street between Columbia Avenue and Lincoln Avenue.

Funnel Cloud in LIVINGSTON, ILLINOIS
From 30-MAY-18 12:44:00 to 30-MAY-18 12:44:00 (CST-6)
Location: FLANAGAN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A funnel cloud was observed near the Woodford and Livingston County line, west of Flanagan.

Funnel Cloud in FORD, ILLINOIS
From 30-MAY-18 14:20:00 to 30-MAY-18 14:20:00 (CST-6)
Location: GIBSON CITY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A funnel cloud was observed about five miles north of Gibson City.

Funnel Cloud in FORD, ILLINOIS
From 30-MAY-18 14:35:00 to 30-MAY-18 14:35:00 (CST-6)
Location: GIBSON CITY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A funnel cloud was observed about one mile east of Gibson City.

Heavy Rain in KANE, ILLINOIS
From 30-MAY-18 13:00:00 to 30-MAY-18 14:10:00 (CST-6)
Location: GILBERTS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Rainfall of 2.87 inches was measured in 70 minutes.

Flood in LAKE, ILLINOIS
From 30-MAY-18 17:20:00 to 30-MAY-18 20:00:00 (CST-6)
Location: BARRINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Route 14 was closed due to flooding between Route 59 and Hart Road.