It includes Frederick County and some surrounding jurisdictions.
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...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT TUESDAY... * WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...In Maryland, Northwest Howard, Carroll, Frederick MD, Washington, Northern Baltimore, and Northwest Harford Counties. In West Virginia, Berkeley and Morgan Counties. * WHEN...From 2 AM to 8 AM EDT Tuesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
By The National Weather Service, Sterling, Va.