At 1:55 a.m. on Thursday, the National Weather Service released a freeze warning valid for Friday between midnight and 9 a.m. for Orange, Putnam, Rockland and Westchester counties.

The weather service adds, "Sub-freezing temperatures around 30 degrees expected."

"Frost and freeze conditions could kill crops and other sensitive vegetation," explains the weather service. "Take steps now to protect tender plants from the cold."

What to do if there is a freeze watch or warning

Freeze warnings are issued from May to October (but can be extended if necessary), when low temperatures are expected to be 29-32 degrees. If there is a potential for temperatures to fall into these thresholds, a freeze watch may be issued a few days ahead of time.

According to the weather service, if a freeze warni

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