Dense Fog Advisory New Jersey, Pennsylvania | Effective 03/21/2026 02:29

Headline: 
Dense Fog Advisory issued March 21 at 5:29AM EDT until March 21 at 8:00AM EDT by NWS Mount Holly NJ
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
March 21, 2026 - 2:29am
Expires: 
March 21, 2026 - 5:00am
Description: 
* WHAT...Visibility as low as one quarter mile in dense fog. * WHERE...Portions of northern and northwest New Jersey and east central, northeast, and southeast Pennsylvania. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Instruction: 
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Area Description: 
Sussex; Warren; Morris; Hunterdon; Somerset; Carbon; Monroe; Berks; Lehigh; Northampton; Western Chester; Eastern Chester; Western Montgomery; Eastern Montgomery; Upper Bucks; Lower Bucks
Forcast Office: 
NWS Mount Holly NJ