Dec 16, 2015 1:07 PM by News Staff
LOS ANGELES (AP) - Southern California's week of unusually cold weather continues with overnight temperatures in valley areas dipping into the teens.
The National Weather Service issued a frost advisory for the San Gabriel and Santa Clarita valleys until 9 a.m. Wednesday. Forecasters warned that freezing temperatures risk harm to pets, livestock and sensitive vegetation.
Just before dawn the temperature in Lancaster, in the Antelope Valley north of Los Angeles, was 19 degrees.
The frigid weather is a result of a dry, cold air mass that descended on the region after weekend storms moved out.
Overnight freeze warnings were issued for the San Joaquin Valley and Central Coast counties.
Motorists are urged to use caution in mountain areas, where a wind advisory is in effect through 10 a.m. Gusts topping 45 mph are predicted.
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