Weather Alerts-

Make preparations per the instructions

Philadelphia - PA, US, National Weather Service

Portions of Atlantic coastal waters and Delaware Bay Waters

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... WHAT...Dense fog will reduce visibility to 1/4 NM or less. WHERE...Portions of Atlantic coastal waters and Delaware Bay Waters. WHEN...Until 11 AM EDT this morning. IMPACTS...Low visibility will make navigation difficult. ADDITIONAL DETAILS...Additional dense marine fog possible again tonight into early Wednesday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.