Rain soaked the Southern California desert Sunday, stranding motorists on a water- and mud-choked section of highway near the Nevada border.
There were no reports of any injuries.
The California Highway Patrol shut down the Interstate 40 and U.S. Highway 95 interchange near Needles Sunday afternoon, and a dispatcher said there was no indication when it would reopen. The area had been doused with heavy rain, which meteorologists described as the remnants of Tropical Storm Ivo.
A flash-flood watch has been issued through 8 p.m. Monday for San Bernardino County and parts of Arizona and Nevada, according to the National Weather Service, meaning rain could fill normally dry washes and channels and make roads impassable. Burn areas are particularly likely to flood, the weather service said.
Also on Monday, there will be a slight chance of thunderstorms and showers over the Angeles National Forest in the Antelope Valley, said David Sweet, a weather service meteorologist in Oxnard. The rest of Los Angeles County could see rain late Monday night and Tuesday, he said.