Full Notification

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Portions of central, north central and northern Maryland, central and northwest Virginia and eastern West Virginia.

* WHEN...From midnight tonight to 9 AM EDT Monday.

* IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* AFFECTED AREAS: WASHINGTON ... FREDERICK ... CARROLL ... NORTHERN BALTIMORE ... NORTHWEST HOWARD ... NORTHWEST HARFORD ... SHENANDOAH ... FREDERICK ... CLARKE ... NORTHERN VIRGINIA BLUE RIDGE ... CENTRAL VIRGINIA BLUE RIDGE ... MORGAN ... BERKELEY ... JEFFERSON

Instructions:

Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing.