Take steps now to protect tender plants from the cold.
* WHAT...Sub-freezing temperatures as low as 29 expected.
* WHERE...Portions of central, north central, and northern Maryland
and central and northern Virginia.
* WHEN...From 2 AM to 9 AM EDT Saturday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.