Las Vegas was hit by flooding as heavy thunderstorms packing golf ball-sized hail, gusty winds and destructive lightning swept through the area Thursday, leaving at least one person hospitalized after she was plucked from a flooded wash, authorities said.

The woman was believed to have suffered a heart attack while she and two other people were rescued Thursday from rushing water near the Hard Rock Casino Hotel east of the Las Vegas Strip, Deputy Clark County Fire Chief Jeff Buchanan said.