Palm Springs, Calif. -

There will be scattered thunderstorms and a chance of flash flooding in the Coachella Valley and Riverside County mountains today, meteorologists said.

The National Weather Service issued a flash flood watch for the Coachella Valley and Riverside County mountains from 11 a.m. through this evening, saying just three-tenths of an inch of rainfall in 30 minutes would be enough to cause flash flooding in areas recently denuded by wildfire.

``Flash flooding is a very dangerous situation,'' noted an NWS advisory. ``You should monitor later forecasts and be prepared to take action.''