An updated frost advisory was released by the National Weather Service on Thursday at 2:08 p.m. valid for Friday between midnight and 9 a.m. for Passaic and Bergen counties.

The weather service says to expect, "Temperatures as low as 34 degrees will result in frost formation."

"Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered," adds the weather service. "Take steps now to protect tender plants from the cold."

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