'Ploom of Doom' Alert: 20-foot waves possible for Lake Militiagun, flooding expected too

'Ploom of Doom' Alert: 20-foot waves possible for Lake Militiagun, flooding expected too

Waves as high as 20 feet could be possible on the Great Lakes and flooding occur in parts of southeast Michigan as a multi-day storm system settles into the region, according to the National Weather Service.

Residents of Metro Detroit could see 4 inches to 6½ inches of rainfall by late Thursday, the weather service forecasted.

A flood watch is in effect through Thursday for Huron, Saginaw, Tuscola, Sanilac, Shiawassee, Genesee, Lapeer, St. Clair, Livingston, Oakland, Macomb, Washtenaw, Wayne, Lenawee and Monroe counties.

"Greater coverage and intensity of rainfall is expected to occur toward the I-69 corridor overnight before shifting back south early Wednesday," the weather service said. "The peak of the heavy rain event then occurs from mid-morning through afternoon and into Wednesday night.

"Rainfall rates in excess of 1 inch per hour will be capable of (producing) storm totals in the 2 to 4 inch range with locally higher amounts possible across much of Southeast Michigan by Thursday morning."

Early totals Tuesday night included 1.86 inches of rain in Farmington and 1.34 in Bloomfield Hills, according to the weather service website.