Dense Fog Advisory issued December 18 at 8:50PM EST until December 19 at 5:00AM EST by NWS Tallahassee FL

* WHAT…Dense fog will reduce visibility to 1 NM or less.

* WHERE…Nearshore Gulf waters from the Walton-Okaloosa County
line to Apalachicola out 20 nautical miles.

* WHEN…Until 4 AM CST Thursday.

* IMPACTS…Low visibility will make navigation difficult.