The following events were reported: Flash Flood, Flood, Hail, Thunderstorm Wind, Tornado. These occurred near station USW00094846, approximately 23.5001 km away, between 2007-08-23 13:50:00 and 2007-08-27 01:30:00. The events included records with hailstones measuring 56.372 inches. The flood was caused by Heavy Rain. The events resulted in 46 injuries and 1 fatalities. The events caused property damage valued at 8085000.0 and crop damage of 0.0. Episode Narrative: Powerful and damaging thunderstorms moved across northern Illinois producing widespread wind damage. The most intense wind damage occurred along a path which began in far western Dupage County near the intersection of Roosevelt Road and Washington Street in West Chicago and continued east through the northern portions Lombard and Glen Ellyn, into Northlake, then across the north side of Chicago to the Lake Michigan Shore near Montrose Harbor. Wind damage along this path was consistent with winds 60 to 80 mph. Smaller pockets of more intense damage with winds of 80 to 100 mph were noted in the Wrigleyville area. The City of Chicago reported over 6,400 tree emergencies, over 200 damaged light poles, and over 350 downed power lines. A 40 inch diameter tree was blown down on West Waveland Street in Chicago. ComEd reported that a total of 615,000 customers lost power during the storms. Powerful and damaging thunderstorms moved across northern Illinois producing widespread wind damage. Event Narrative: Significant flooding occurred along the Fox River throughout Kane County, In East Dundee, Richardson Subdivision was particularly hit hard by the flooding. In South Elgin, some of the hardest hit areas included South River Street, North Water Street, Arthur Avenue, Josephine Avenue, Ross Avenue, and Mavis Avenue. 10 Families were evacuated in Elgin as flood waters continued to rise on August 24th. Bike paths and other green space along the river were inundated. Another area affected included the Valley View Subdivision in St Charles. Kane County officials estimated that flooding damaged more than 600 homes and businesses, and forced at least 80 residents from their homes. Flooding also occurred to 15 homes along the river���s west bank in Montgomery. Reports indicated that floodwaters affected backyards, garages, and basements of homes just south of the Ashland Avenue Bridge. Significant tree damage across Batavia and Fabyan Park Preserve. Damage to a loading dock and parking garage eaves at Central Dupage Hospital. Estimated gust to 70 mph. Estimated gust to 60 mph. A tornado touched down near Prince Crossing Road south of Geneva Road in Winfield. The tornado had a path length of 2.67 miles and a path width of 300 to 500 yards. The tornado lifted just west of Gary Avenue south of Geneva Road. The main damage from the tornado included several large uprooted hardwood trees. Shingles and power lines were also blown down. Some street and yard flooding with 0.78 inches of rain in 40 minutes. City officials estimated that as many as 2,500 trees suffered damage or were completed blown down. An education wing of a church was severely damaged. Flooding on many roads with water eight to ten inches deep on parts of Park Blvd. Multiple large trees blown down in a residential area near Golf Road and Shermer Road. Large tree limbs blown down. Large tree limbs blown down on Westbury Drive. Large trees blown down, some 12 inches in diameter. Siding also blown off houses. Large tree limbs blown down at Oak Avenue and Hillcrest. Measured gust to 58 mph. Measured gust to 66 mph. Extensive tree damage city wide. Damage to cars, roofs, and fences. Powerlines also blown down. Estimated winds to 65 mph. Numerous trees uprooted with an estimated wind gust to 90 mph at Dupage County EOC at Gary Avenue and Jewel Road. A 50 foot Douglas Fir tree had the top 25 feet sheared off which landed on a neighbors roof. Extensive tree and power line damage across Geneva. Large trees down all over town, some on cars and houses. Quarter size hail reported at Route 31 and Interstate 90. Measured gust to 62 mph. Quarter size hail reported at Main and Randall Roads. Three to four inches of water on Main Street between 63rd and 55th Streets. Several roads with water knee deep in spots. Three inches of standing water on Interstate 355 at St. Charles Road. A tree was blown down on Francis Road. Gust to 58 mph measured at O'hare Airport. Measured gust to 67 mph. Estimated gust to 75 mph. Water flowing over roads. Estimated gust to 65 mph. Heavy rainfall over the upper part of the Des Plaines watershed in Wisconsin combined with well above normal precipitation over portions of Lake County Illinois brought the parts of Des Plaines River in flood by August 20th. The additional rains on August 23rd resulted in a crest of 8.62 feet the following evening at Des Plaines. In Des Plaines, flooding inundated the Methodist Campground. Many streets were affected by floodwaters and some homes on Big Bend Drive and Junior Terrace were surrounded by flood waters. Water eight inches deep, curb to curb on Randall Road north of Interstate 90. The roof of a warehouse above two of four loading docks, gave way. Forty people were injured, seven of which had to go the hospital. Over 1,000 trees were either uprooted, blown over, or suffered some kind of damage. At least 76 trees, including some 25 to 30 inches in diameter, were blown down at a golf course. A large tree was blown down and crushed a car at the corner of Jackson Street and Parker Avenue. Numerous trees, tree limbs and power lines were blown down. A woman was seriously injured when a tree fell on her car on Prairie Avenue. Another tree fell on car, injuring the driver at York Street and St. A tree was blown down onto a city vehicle on Fairview, where the driver was injured. Two other people were injured when they entered their flooded basements. A large tree was blown down near Shorewood subdivision. A large tree was blown down onto a vehicle near Lyons School. The vehicle was destroyed. A three year old girl was trapped inside but suffered only minor injuries. Numerous other trees, tree limbs and power lines were blown down. Numerous trees, tree limbs and power lines blown down. A garage door was blown in by the high winds, a roof was partially blown off, some trees fell onto houses. In Villa Park, at least 1,500 trees were either destroyed or heavily damaged and 2,000 structures in Villa Park were damaged. A tree was uprooted on Seegers Road. Other tree and tree limbs were blown down and roof damage was also reported. Storm and sewer grates dislodged by flowing water at Route 20 and St. Charles. Eight inches of water at Irving Park Road near Route 25. A roof of a car repair shop was blown off on Estes Avenue and another building on Lunt Avenue also suffered roof damage. Almost every street was littered with either tree limbs or full trees that were blown down. Large trees were uprooted in a cemetery. Street flooding at Mayflower Lane north of Schick Road. Heavy rainfall over the upper part of the Des Plaines watershed in Wisconsin combined with well above normal precipitation over portions of Lake County Illinois brought the parts of Des Plaines River into flood by August 20th. Additional rains on August 23rd resulted in crests during the following 3 days from points at Russell and Gurnee. Water inundated some homes along the river near Russell between the river and Kilbourne Road. Downstream at Gurnee, volunteers sandbagged around the Gurnee Grade School to prevent floodwaters from damaging the structure. Flood waters inundated large areas of forest preserve along the river. Elsewhere in Gurnee flooding closed portions of Old Grand Avenue as well as Emerald Avenue and Kilbourne Road. Sandbags were placed in front of several businesses along Old Grand Avenue. In North Libertyville Estates, a floodwall designed to hold flood waters from the Des Plaines River at bay, appeared to work as the area remained dry. In Libertyville, the Libertyville Golf Course at Riverside Park was flooded. The river crested at 10.55 feet at Russell on the 24th and at 9.82 feet on the evening of the 25th. High flows from near record flooding on the Fox River in Wisconsin were also moving downstream. These high flows, combined with excessive runoff over northern Illinois resulted in widespread flooding along the Fox River in the Chain of Lakes area. Homes in Antioch were surrounded by flood waters and many roads were closed. Most piers were under water and sandbagging efforts were ongoing. Six inch diameter tree blown down in the road at Arlington and Regent Streets. A man was struck by a falling tree limb on a golf course and died from his injuries.