Dense Fog Advisory issued March 21 at 5:29AM EDT until March 21 at 8:00AM EDT by NWS Mount Holly NJ
Issue date: 2026-03-21T09:29+00:00
* WHAT...Visibility as low as one quarter mile in dense fog. * WHERE...In Delaware, New Castle County. In New Jersey, Mercer, Middlesex, Camden, Gloucester, Northwestern Burlington, and Salem Counties. In Pennsylvania, Delaware and Philadelphia Counties. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
