A line of thunderstorms moved across parts of northeast and eastern Illinois during the morning hours of May 25th producing a tornado near St. Anne as well as heavy rain and some flooding.

Hail in WILL, ILLINOIS
From 25-MAY-11 07:51:00 to 25-MAY-11 07:52:00 (CST-6)
Location: MONEE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flood in DU PAGE, ILLINOIS
From 25-MAY-11 09:33:00 to 25-MAY-11 12:00:00 (CST-6)
Location: GRETNA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Minor street flooding was reported in Glen Ellyn.  Nearby rainfall reports included 1.52 inches near Lisle and 1.29 inches in Oak Brook.

Flood in LA SALLE, ILLINOIS
From 25-MAY-11 18:40:00 to 25-MAY-11 22:00:00 (CST-6)
Location: LA SALLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Up to 8 inches of standing water was reported on roads near Illinois Valley Community College.

Flash Flood in LA SALLE, ILLINOIS
From 25-MAY-11 22:00:00 to 26-MAY-11 00:00:00 (CST-6)
Location: MENDOTA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Several creeks in the town of Mendota were near bankfull.  Several intersections were closed due to flooding on the roadways.

Lightning in WINNEBAGO, ILLINOIS
From 25-MAY-11 07:30:00 to 25-MAY-11 07:30:00 (CST-6)
Location: HARLEM
Property damage: 400.00K
Crop damage: 0.00K
Reported by: Newspaper

A two story, eight unit apartment building was struck by lightning.  The roof was engulfed in flames and the building was a total loss.  All of the 15 occupants were able to exit the building safely and no injuries were reported.

Flash Flood in LA SALLE, ILLINOIS
From 25-MAY-11 19:00:00 to 25-MAY-11 23:00:00 (CST-6)
Location: PERU
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Several inches of flowing water was reported on many streets in Peru including Green, Calhoun, Second and Water Streets.  U.S. Route 6 was closed for a short time due to flooding.  A manhole cover was lifted up and out of its fitting onto First Street in LaSalle.  Storm total rainfall of 3.52 inches was measured in LaSalle.

Flash Flood in LAKE, ILLINOIS
From 25-MAY-11 18:30:00 to 25-MAY-11 22:00:00 (CST-6)
Location: DEERFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Several feet of water flooded the Laurel Avenue underpass at First Street where two cars were stranded in the flood waters.  Flooding was also reported at the Sheridan Road entrance to Rosewood Beach.  Many other streets were flooded with standing water in Highland Park.

Flood in COOK, ILLINOIS
From 25-MAY-11 18:00:00 to 26-MAY-11 18:00:00 (CST-6)
Location: THE GREENS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Flooding was reported in many areas in and around Niles including flooding at a golf course on Howard Road and flooding at the Gemini Junior High School on Greenwood.  Storm total rainfall was measured at 2.80 inches.

Lightning in DE KALB, ILLINOIS
From 25-MAY-11 06:50:00 to 25-MAY-11 06:50:00 (CST-6)
Location: SANDWICH
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A house on 3rd street in Sandwich was struck by lightning.

Thunderstorm Wind in IROQUOIS, ILLINOIS
From 25-MAY-11 07:50:00 to 25-MAY-11 07:50:00 (CST-6)
Location: BEAVERVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Newspaper

The roof of a barn was damaged between Donovan and Beaverville.  Tree damage was also reported near Beaverville.

Flood in LA SALLE, ILLINOIS
From 25-MAY-11 20:00:00 to 26-MAY-11 20:00:00 (CST-6)
Location: EARLVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 20.00K
Reported by: Newspaper

Approximately 100 acres of farmland was flooded in the Earlville and Leland areas.  The young plants in these areas did not survive because they had been under water for too long.  Some of this land was expected to be replanted.  Storm total rainfall of 2.94 inches was measured three miles south of Earlville.

Tornado in KANKAKEE, ILLINOIS
From 25-MAY-11 08:04:00 to 25-MAY-11 08:12:00 (CST-6)
Location: LEESVILLE
Tornado F-scale: EF1
Property damage: 250.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Tree damage was observed at multiple locations along the path of this tornado including snapped hardwood trees.  Additional damage included snapped utility poles, roof and shingle damage to homes, overturned campers, and an attached garage removed from a home that was under construction.  Two people reported watching this tornado as it just missed their property.  Two buildings, built from concrete blocks, were destroyed near 11580E and 7000S.  At 4702S and 14000E, storage sheds were destroyed and a metal grain bin was blown over.  Shingles were also blown off the roof of a house.

Hail in COOK, ILLINOIS
From 25-MAY-11 08:00:00 to 25-MAY-11 08:00:00 (CST-6)
Location: RICHTON PARK
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement