BALTIMORE, MD—The National Weather Service has issued a Frost Advisory for northern Baltimore County and northern Harford County.

The advisory will be in effect from 2 a.m. through 8 a.m. on Thursday morning, May 18, 2023.

Forecasters say temperatures as low as 34 degrees will result in frost formation overnight.

Frost could kill sensitive outdoor vegetation if left uncovered. Residents should take steps now to protect tender plants from the cold.