Santa Ana Winds Topple Trees, Trucks

02/02/2011 03:36 pm ET | Updated May 25, 2011

LOS ANGELES (KTLA) -- Fierce Santa Ana winds are causing damage all across Southern California Wednesday morning.

A high wind warning is in effect for San Bernardino and Riverside counties, according to the National Weather Service, with gusts of up to 80 mph possible. The advisory expires mid-afternoon Wednesday.

People driving on the 10 and 15 freeways in the Inland Empire are being warned to take it slow, especially in high profile vehicles.

Five big rigs were overturned by winds within a span of about two miles of each other where the 10 and 15 freeways meet.

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