At 1:35 a.m. on Wednesday, the National Weather Service released a freeze warning valid for Thursday between midnight and 9 a.m. for Jefferson and Lewis counties.

The weather service comments, "Sub-freezing temperatures of around 30 expected."

"Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing," adds the weather service. "Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above-ground pipes to protect them from freezing."

Freeze watch or warning - this is what it means

Freeze warnings are issued from May to October (b

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