Eight people died when a surprise storm caused dangerous waves on the lake along the California-Nevada border, upending boats and tossing passengers into the frigid water.

Four members of a family from Northern California were among eight people killed over the weekend when a boat capsized on Lake Tahoe in California during a fierce thunderstorm

Five of the eight people who died after their boat flipped Saturday in Lake Tahoe were from Northern California, and three were from upstate New York, according to the El Dorado County Sheriff's Office.