CHICAGO -- Severe storms are making for a soggy and complicated start to the weekend in Chicagoland.
Many counties are still under a flood watch Saturday morning, after another wave of heavy storms swept through the area overnight.
Beach warnings are also in effect along Lake Michigan.
Friday evening, as a cold front settled south and east through the Chicago area, strong thunderstorms developed and generated downpours along with winds that downed trees and power lines. It caused flash flooding that made getting around on the roads a challenge.
A Will County official says a small tornado touched down briefly in Frankfort at 5:20 p.m. Friday, near Green Garden Road and Harlem Avenue. The National Weather Service still needs to survey the damage.
This was the heaviest rainfall in more than three months, according to the Chicago Weather Center.