A frost advisory has been issued through 8 a.m. Sunday for valley areas including Redlands and Loma Linda, and overnight lows were expected to plunge near 10 degrees in the San Bernardino Mountains, where a search for accused cop-killer and triple homicide suspect Christopher Jordan Dorner was placed on hold until morning.
Overnight lows for Redlands and Loma Linda are expected to remain just above freezing, with areas of patchy dense fog possible after 10 p.m. Saturday, according to the National Weather Service. East winds are expected around 5 miles per hour.
In the mountains, southwest winds around 5 mph could add windchill value bringing lows in some areas to zero, according to the Weather Service.
In valley areas, sensitive plants and crops may be damaged or killed if left unprotected, forecasters said. It will not be as cold the snap in January, when temperatures plunged below freezing and some citrus growers in east Redlands and Mentone fired smudge pots for the first time since 2007.
In wind-sheltered areas frost will be likely, and some overpasses and bridges may become icy, according to the Weather Service.
Daytime highs Sunday for Redlands and Loma Linda are expected in the mid-50s. Sunday night into Monday morning could bring similar frosty conditions to valley areas.
The search for Dorner in the San Bernardino Mountains began Thursday, when a torched pickup was discovered in the Big Bear Lake area and confirmed to belong the rogue ex-LAPD officer.
Dorner is a military-trained marksman believed equipped with assault weapons who claims he is seeking vengeance for his firing in September 2008. He is wanted in connection with the killings of a Riverside police officer on Thursday and a former LAPD captain's daughter and her fiancé Sunday in Irvine.
Related news reports on Redlands-Loma Linda Patch:
MANHUNT: Search For Rogue Former Cop Continues
DORNER MANHUNT: Armed Deputies Vigilant on Snowbound Mountain Roads
Winter Storm Warning for Mountains Where Dorner Search is Under Way