Workers look over a sink hole Friday, July 23, 2010, in Milwaukee. Powerful thunderstorms caused widespread flooding in southern Wisconsin, closing down Milwaukee's airport and opening up a giant sink hole. Two people were hospitalized after being struck by lightning, authorities said.
A worker scratches his head while talking on the phone as he looks over a sink hole Friday, July 23, 2010, in Milwaukee. Flooding from widespread thunderstorms was blamed for the sink hole
James Conner looks at damage to some houses in his neighborhood Friday, July 23, 2010, in Milwaukee. Powerful thunderstorms caused widespread flooding in southern Wisconsin, closing down Milwaukee's airport and opening up a giant sink hole there.
Residents look at damage to houses Friday, July 23, 2010, in Milwaukee.
Sandbags are filled at the Racine, Wis., public works department garage Friday July 23, 2010, as a precaution in case of flooding of the Root River. Racine is south of Milwaukee, which was hit with between 5 and 7 inches of rain Thursday.
A man makes his way down a flooded path Friday, July 23, 2010, in Milwaukee.