The advisory means widespread frost is expected from 2 a.m. to 9 a.m. Saturday.
The frost could potentially damage sensitive plants and crops so precautionary measures are advised. as plants may be killed if left uncovered, according to the advisory.
The overnight low will be around 34 degrees.
After areas of fog before 9 a.m. Saturday, the rest of the day will be sunny with a high around 63 degrees.
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