Very cold nights with frost and freezing temperatures the next few mornings.
The coldest morning of the cold spell will be Saturday, when temperatures will drop to the 20s in many valley areas and single digits in the Antelope Valley, according to an advisory, which warned of "a potential freeze event."
"Temperatures across the coastal valleys are expected to drop into the mid 20s in some areas," forecasters said. "Even locations near the coast will dip into the low to mid 30s."
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