WRAL meteorologist Elizabeth Gardner said temperatures were expected to drop to the low to mid-30s Monday night. Clear skies, along with diminishing winds and a dry atmosphere, make conditions ripe for the formation of frost.
The frost advisory is in effect from 4 a.m. to 9 a.m. Tuesday for the northern and central parts of the Piedmont and coastal plain regions of North Carolina.
The frost could mean danger for sensitive outdoor plants. If possible, those plants should be brought inside before Monday night. Other protective measures include covering sensitive plants with a light blanket or plastic sheet.