The remnants of Subtropical Storm Alberto brought heavy rain to the Chicago area Wednesday afternoon, dumping enough moisture to break the city’s all-time record for rainfall in May and prompting flood warnings, according to the National Weather Service.
The heavy rains rocketed this month from the third-wettest May on record to the first Wednesday evening. At 6:11 p.m., 7.64 inches of rain had been recorded at O’Hare International Airport this month, with more continuing to fall, setting a record, said Kevin Donofrio, a weather service meteorologist.
The storms came as the city and suburbs stood on the brink of record rainfall — as of Wednesday morning, it had been the third-wettest May on record, with 7.31 inches of rain, said Charles Mott, a weather service meteorologist. The city had been just shy of the second-wettest May set in 1883 with 7.32 inches, Mott said. Chicago’s prior wettest May was in 1945 with 7.59 inches of rainfall.
The average rainfall for May is typically 3.68 inches, said Andrew Krein, another meteorologist for the weather service. But this past month saw four days that each had close to an inch of rain, Krein said.
Flood warnings were issued Wednesday. . .
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