The data on rainfall frequency in that part of Wisconsin says a 100-year rain is between six inches and seven inches in 24 hours. The 500-year rain is 8.4 inches. The 1000-year rain is 9.5 inches. With rainfall totals up to one foot in a day yesterday, this could be considered a 1000-year rain.

The City of Milwaukee Department of Public Works said Sunday morning that crews “are working nonstop assessing damage and clearing flooded areas.”