Strong winds whipped up waves on Lake Michigan on Thursday, April 11, prompting a “lakeshore flood advisory” in Lake and Cook Counties, according to the Chicago Sun Times. Video taken in Milwaukee shows waves crashing against the lake’s western shoreline as winds whistle. The National Weather Service warned on Wednesday that waves could reach as high as 11 feet until midday on Thursday. Winds of up to 40 mph were expected to batter the area until Saturday. Credit: David Zalewski via Storyful