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Previous events

September 13-15, 2008 – 3.23″ + 4.39″ + 0.89″ = 8.51″
Tropical Storm Lorenzo in the Pacific Ocean and Hurricane Ike in the Gulf of Mexico fed moisture to a cold front stalled across the Midwest. Widespread storm totals in excess of ten inches occurred with the systems in northern Cook County due to the front, and upwards of a foot in northern Lake and Porter Counties in Indiana due to Ike.

December 27-28, 2008 – 0.77″ + 1.27″ + 2.31″ (SWE) = 4.35″
Mid 60 degree temperatures melted 9″ of snowpack, which contained 2.31″ of water-equivalent that ran off during the thaw. Multiple street closures.

March 7-10, 2009 –  0.46″ + 1.75″ + 1.15″ + 0.50″ + 0.12″ = 3.52″
A stationary frontal boundary brought over 3 1/2 inches of rain to already saturated ground. This caused minor flooding on Illini and Silverleaf Drives.

Graphical rain summary for 3-7-2009 through 3-10-2009

Graphical rain summary for 3-7-2009 through 3-10-2009

July 23-24, 2010 – 7.28″
A stationary frontal boundary brought over 7 1/4″ of rain to the area. The time period between midnight and 6:30 AM brought over 6.00″ of rain, which was unprecedented and caused major flooding throughout Carol Stream, especially to Hiawatha Drive upstream of the library.

April 17-19, 2013 – 6.15″
A very prolonged frontal boundary passage brought 2.00″ of rain through the first days, followed with over 3.00″ in the next 6 hours, resulting in widespread serious flooding. Water levels were below those seen in July 2010 and September 2008.

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