Sunday, Sept. 9, 2012 | 4:09 p.m.
The National Weather Service has issued a flash flood watch as thunderstorms again loom over the Las Vegas Valley.
The watch will be in effect from 9 a.m. Monday until 4 a.m. Tuesday, said Jim Harrison, a meteorologist for the National Weather Service. The watch covers much of Southern Nevada, including Clark County, the Lake Mead National Recreation Area and part of Nye County.
During that time, there will be a 50 to 60 percent chance of thunderstorms in the valley, Harrison said. Some areas might see 1 or 2 inches of rain, he said.
With the added moisture in the atmosphere, rainfall is likely to be heavier than in previous storms, he said.
Harrison advises drivers to be alert about the weather and to avoid flooded roads and washes.