A powerful storm moved into Southern California on Sunday and could bring unusually strong winds of up to 50 mph to Los Angeles and Ventura counties. Possibly damaging gusts well over 60 mph could hit in the mountains and deserts. Officials warned that the storm is forecast to bring heavy rain and a risk of flash floods, especially in recently burned areas that could see mud flow down hillsides.

Strong winds were expected to cause flight problems at Los Angeles International Airport, and forecasters said there is enough instability aloft that there could be a 36% chance of thunderstorms in parts of the L.A. area. Waterspouts and even weak tornadoes are possible. “The winds may well turn out to be the defining feature of this system,” the National Weather Service said Sunday morning. FULL REPORT