LOS ANGELES (AP) — The National Weather Service has issued high wind warnings as gusts of 30 to 60 mph sweep through Southern and Central California.

Forecasters say northwest winds will scour the mountains and valleys of Santa Barbara, Ventura and Los Angeles counties through Tuesday.

Drivers heading through the Grapevine section of Interstate 5 north of Los Angeles are urged to be careful.

Gale warnings are up for boaters in San Luis Obispo County, Ventura and Santa Barbara counties.

Drizzle May Accompany Wind Storms: KNX 1070′s Jon Baird Reports

Meanwhile, authorities aren’t sure if wind toppled a 70-foot eucalyptus tree that smashed into a Granada Hills home Monday morning. Los Angeles fire spokesman Brian Humphrey says a 56-year-old woman sitting on her sofa missed being crushed by inches. She’s hospitalized in fair condition.

(© Copyright 2010 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)