There were 10 people aboard the 27-foot powerboat near D.L. Bliss State Park in southwest Lake Tahoe, when a powerful thunderstorm rolled in Saturday afternoon, rapidly worsening conditions on the lake.

There were 10 people aboard the 27-foot powerboat near D.L. Bliss State Park in southwest Lake Tahoe, when a powerful thunderstorm rolled in Saturday afternoon, rapidly worsening conditions on the lake.