Wind Advisory issued Remains in Effect until September 21 at 3:00AM PDT

* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph expected. Strongest through the Interstate 5 corridor. 

* WHERE...Los Angeles County Mountains excluding the Santa Monica Range. 

* WHEN...From 7 PM this evening to 3 AM PDT Tuesday. 

* IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high-profile vehicles. Tree limbs could be blown down and a few power outages may result.

A warning is issued when hazardous weather or hydrologic event is occurring, imminent or likely.

A watch is used when the risk of hazardous weather or hydrologic event has increased significantly, but its occurrence, location or timing is still uncertain.

An advisory is issued when hazardous weather or hydrologic event is occurring, imminent or likely.