At 5:05 a.m. on Thursday, the National Weather Service released an updated frost advisory valid for Friday between midnight and 7 a.m. for Southern Westchester, Northwest Suffolk, Northeast Suffolk, Southwest Suffolk and Southeast Suffolk.

The weather service adds to anticipate, "Temperatures as low as 33 degrees will result in frost formation."

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

Frost advisory - this is what it means

Frost advisories are issued from May to October (but can be extended if necessary) when temperatures, winds, and sky cover are favorable for frost development. This is most likely to happen when the temperature is 3

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