Thunderstorms moved across parts of northern Illinois during the morning hours of May 13th producing very heavy rain and flooding.  Flash flooding was reported in some locations.

Flash Flood in LEE, ILLINOIS
From 13-MAY-10 02:20:00 to 13-MAY-10 07:15:00 (CST-6)
Location: LINCOLN HGTS
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

River Road was closed one half mile east of Galena Avenue with a car stranded in flood water up the bumpers.  Six to eight inches of water was reported at the intersection of Route 2 and Willett Avenue.  High standing water was reported in many areas in Dixon.  Storm total rainfall of 2.73 inches was reported 3 miles north northwest of Dixon.

Flash Flood in DU PAGE, ILLINOIS
From 13-MAY-10 05:39:00 to 13-MAY-10 10:00:00 (CST-6)
Location: NORTH LAKE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Eastbound North Avenue was closed due to flooding near Interstate 290.

Hail in LEE, ILLINOIS
From 12-MAY-10 21:56:00 to 12-MAY-10 21:58:00 (CST-6)
Location: FRANKLIN GROVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hail in WILL, ILLINOIS
From 12-MAY-10 23:44:00 to 12-MAY-10 23:45:00 (CST-6)
Location: MANHATTAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in LAKE, ILLINOIS
From 13-MAY-10 04:40:00 to 13-MAY-10 10:00:00 (CST-6)
Location: KNOLLWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The intersection of Route 41 and Route 176 was flooded and closed.

Flash Flood in COOK, ILLINOIS
From 13-MAY-10 05:51:00 to 13-MAY-10 11:00:00 (CST-6)
Location: ELGIN
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash flooding occurred in several places in northern Cook County during the morning of May 13th.  Many roads were flooded and closed including Shermer Road between Lake Avenue and Willow Road; Central Road between Milwaukee Avenue and River Road and Harvard and Cook Roads.  Numerous creeks, streams and rentention ponds rose out of their banks.  A car was submerged in flood waters in a parking lot in Wheeling.  A medical office building in Barrington was evacuated due to flooding.
Storm total rainfall totals included 3.07 inches in Barrington; 2.64 inches 3 miles north northeast of Palatine; 2.58 inches in Northbrook; 2.52 inches 2 miles south of Inverness; 2.15 inches in Arlington Heights; 2.09 inches in Wheeling and 1.47 inches at O'Hare Airport.

Flash Flood in LAKE, ILLINOIS
From 13-MAY-10 05:30:00 to 13-MAY-10 11:00:00 (CST-6)
Location: CHANNEL LAKE
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash flooding occurred in many areas in Lake County during the morning hours of May 13th.  Numerous roads were closed and flooded including, Route 60, east of St. Mary Road; Route 41 between Westleigh and Kennedy Roads; Peterson Road at Route 60; Cuba Road, west of Ela Road; Route 45 south of Hawley Street; Route 173 at Delany Road; Russell Road east of Lewis Avenue; Southbound Route 41 at Milwaukee Road; Route 60, eastbound between Saint Marys and Riverwood Roads; Grand Avenue east of Oplaine Road and two vehicles were stranded in flood waters at the Deerpath and Route 41 underpass in Lake Forest.  A house was surrounded by flood waters in Lake Forest and the occupants had to be carried out.  Flood waters began flowing into a senior apartment building near Route 45 and Division Street and 12 residents were evacuated.  Significant flooding occurred at the Deerpath Golf Course in Lake Forest.  The Des Plaines River rose out of its banks near Gurnee.  Numerous creeks, streams and retention ponds swelled out of their banks.  Flood waters were reported in numerous ditches, fields and backyards.  Basement flooding was also reported in many areas.
Storm total rainfall amounts included 3.60 inches 1 mile north of Hawthorn Woods; 3.30 inches in Mundelein; 3.26 inches 2 miles north northeast of Lake Forest; 3.21 inches 1 mile north northeast of Long Grove; 3.20 inches 1 mile west of Lake Bluff; 2.79 inches 1 mile north of Lincolnshire and 2.59 inches 2 miles southeast of Lakemoor.