Illinois State Water Survey Illinois State Climatologist

Late December Heavy Rains, Flooding in Illinois

A large, slow-moving low-pressure system moved through the central US, bringing widespread, heavy rains to Illinois and neighboring state. This resulted in considerable flooding ranging from flooded basements to major flooding on the Mississippi River. Rainfall Maps for December 26-29, 2015 This first map shows the widespread heavy rains from Texas, Oklahoma, Arkansas, Missouri, Illinois, Kentucky, […]

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Heavy Rains Hit Illinois

A large, slow-moving winter storm has dropped considerable rainfall across Illinois in the last few days. Here is the map of the amounts in the last 7 days, through this morning (12/28). Areas in shades of red are 5 to 8 inches, and follow Interstate 70 across Illinois. Areas in shades of yellow to light […]

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Response to Damaging Rains in Illinois: Monthly Rainfall Totals for Over 500 Sites

Recently, Illinois officials have sought a federal disaster declaration from USDA in response to the heavy rainfall and damaging flooding across Illinois during May, June, and July of 2015. Update August 12: all but one county in Illinois is eligible for federal agricultural disaster loans due to excess rain according to news reports.   In […]

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Most of Corn Belt Soaked in July

Here is the latest radar/raingauge estimated rainfall totals for July across the Midwest through this morning. Much of the Corn Belt has been extremely wet. Heavy rains amounts of 5 to 10 inches are found across Minnesota, Wisconsin, Missouri, southern Iowa, Illinois, Indiana, Ohio, and Kentucky for July. Even portions of the Plains states received […]

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