UPDATE — Wednesday, October 21, 11:52 PM CT: The National Weather Service in Las Vegas now places this storm 9 miles east of Moapa Valley, about 11 miles northeast of Overton, moving north at 40 mph with 60 mph gusts and quarter-size hail. Mesquite, Moapa Town, Logandale and Bunkerville are now in its path, plus I-15 between mile markers 88 and 120. This warning runs through 10:00 PM PDT.

Clark County, Nevada —

What is happening: A separate severe thunderstorm is moving north through northeastern Clark County. This one was located near Overton Beach, about 11 miles southeast of Overton, and is racing north at 50 mph — a fast mover. This warning runs through 10:00 PM PDT.

Local impacts: This storm is producing 60 mph wind gusts and quarter-size hail. The Overton and Overton Beach area and the Lake Mead shoreline are taking the hit. Fast-moving storms like this can catch boaters and campers with little notice.

What to do:

• Get inside a well-built structure and stay away from windows.

• - If you are on or near Lake Mead, get away from the water and move indoors or inside a vehicle immediately.

• - Lightning can strike 15 miles out from the storm — take every rumble seriously.

• Source: National Weather Service Las Vegas, October 21.