The National Weather Service issued a flash flood warning shortly after 8 p.m. Saturday, but a critical cell phone alert wasn't dispatched until after 1 a.m. Sunday—leaving many residents unaware of the worsening conditions.

As per an update by Fox 6, a flood watch for Milwaukee, Ozaukee, Kenosha, Racine, Walworth, and Waukesha counties has been issued by the National Weather Service through 7 am on August 11. The excessive rainfall could lead to flash floods. It could also result in flooded streams, creeks, rivers, and excess water in low-lying areas.

At 9:07 p.m. EDT on Thursday, the National Weather Service issued a flash flood warning in effect until Friday at 1 a.m. EDT for Alcona County.