LOS ANGELES - Winds gusting at as much as 70 miles per hour lashed the Southland today, prompting warnings of hazardous conditions.

The winds will die down this afternoon and pick up again tonight, according to the National Weather Service.

A high wind warning denoting 40-mile per hour winds and gusts of around 60 mph will be in effect until 2 p.m. Thursday in both the San Gabriel and Santa Monica mountains, and a less serious wind advisory will be in force at the same time along the coast, in metropolitan Los Angeles, and the San Fernando and Santa Clarita valleys.

People in areas subject to the high wind warning should "be alert for flying debris," according to an NWS advisory. "If on the road, keep eyes open for fallen trees and downed power lines. Secure all doors and windows and stay indoors if possible."

The NWS recorded gusts this morning of 70 mph at Camp Nine in the San Gabriels, 67 mph at Chilao, which is also in the San Gabriels, 66 mph in the Malibu Hills and 37 mph in Saugus.

Highs today under sunny skies will be in the 50s in the Antelope Valley and the low to mid 60s in most other communities in the Greater L.A. area.