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Big winds may cause damage

Two weather systems expected to collide, create dangerous conditions

Posted: April 8, 2013 2:00 a.m.
Updated: April 8, 2013 2:00 a.m.
 

Property damage due to high wind is expected in the Santa Clarita Valley today as two intense wind systems collide, a weather specialist said.

A high wind advisory issued Sunday was expected to intensify overnight Sunday and was upgraded to a high wind warning in place until Tuesday morning, with steady winds expected between 25 and 40 miles per hour, gusting to 65 mph, said weather specialist Stuart Seto with the National Weather Service.

“Anything that can be blown around will be blown around,” he said. “These are damage-causing winds, so damage will occur. You don’t want to park your car under trees.”

On Sunday, blustery “surface winds” uprooted patio umbrellas, toppled potted plants and snapped pencil-thick branches, but caused no significant damage such as downed trees, according to spokesmen with both the local sheriff’s station and at least one local fire station.

Sunday’s winds — clocked at between 20 and 30 miles per hour, gusting to 50 mph — prompted the  National Weather Service to issue a high wind advisory in effect until midnight Sunday.

In the early hours of this morning, however, those surface winds are expected to mix with winds in “the upper atmosphere,” Seto said.

The result, at ground level, is expected to create constant strong winds throughout the day today and into tonight, he said.

“The lower winds coming at us right now will be mixing with the winds in the upper atmosphere,” Seto said, from the weather office in Oxnard.

Caltrans posted an advisory on its website Sunday warning motorists that “travel is not recommended for campers, trailers or permit loads” in areas where a high wind advisory was posted, such as Santa Clarita Valley.

Specifically, the state’s Department of Transportation warned of a high wind advisory in effect from 13 miles north of Santa Clarita to the Kern County line.

“Motorists travelling the I-5 should be aware of dangerous crosswinds,” Seto said, referring to the interstate section through the Grapevine.

His advice to Grapevine motorists: “Don’t go.”

Winds are expected to diminish beginning Tuesday morning when the high wind warning is expected to be lifted.

Temperatures are expected to rise throughout the rest of the week with Wednesday and Thursday expected to be sunny and warm, with moderate winds.

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