A freeze warning was issued by the National Weather Service on Thursday at 1:56 a.m. valid from 11 p.m. until Friday 9 a.m. for Carbon, Monroe and Northampton counties.

The weather service comments, "Sub-freezing temperatures as low as the upper 20s to low 30s expected."

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

Freeze watch or warning - this is what it means

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

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