LOS ANGELES (CBSLA.com) — Flash flood watches have been issued for parts of the Southland on Sunday.
The National Weather Service (NWS) issued the watches for the mountains of Los Angeles and Ventura counties, as well as, for the Antelope Valley.
The watches went into effect at noon.
They were expected to expire in the evening.
“Moist and unstable conditions will likely bring thunderstorms to the mountains of Ventura and Los Angeles counties and the Antelope Valley this afternoon and evening,” the NWS said at midday.
According to the NWS, the culprit was a slow-moving shot of upper-level moisture which was moving in from Arizona and Mexico.
Meantime, residents were being warned not to cross flooded streets.
(©2012 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Wire services contributed to this report.)