The NWS Los Angeles/Oxnard CA issued a dense fog advisory at 5:17 a.m. on Wednesday. Visibility one quarter mile or less in dense fog for Los Angeles County Beaches, Los Angeles County Inland Coast including Downtown Los Angeles, and Los Angeles County San Gabriel Valley until 9 a.m. this morning.

On Wednesday at 2:28 a.m. a dense fog advisory was issued by the National Weather Service in effect until 7 a.m. for Western Chester, Eastern Chester, Western Montgomery, Eastern Montgomery, Upper Bucks and Lower Bucks as well as Delaware and Philadelphia counties.

All of South Florida woke up to a foggy start this New Year’s Eve, with the National Weather Service issuing a dense fog advisory until 10 a.m. READ MORE: New Year’s Eve to ring in with clear skies after dense morning fog. Here’s forecast