The National Weather Service will issue a WIND ADVISORY, effective 10 PM this evening  through 10 AM Monday, for the mountains of Los Angeles, Ventura and Santa Barbara Counties.  North to northwest winds 20 to 35 MPH will develop in these areas with occasional gusts to 55 MPH.   The strongest winds are expected late Sunday morning through evening; especially along the Interstate 5 corridor.  By midday Monday winds will decrease and become offshore.