FZUS72 KJAX 170721 MWSJAX Marine Weather Statement National Weather Service Jacksonville FL 321 AM EDT Wed Apr 17 2024 AMZ450-452-171400- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- 321 AM EDT Wed Apr 17 2024 ...PATCHY DENSE FOG OVER THE NEARSHORE WATERS THIS MORNING... Marine interests should exercise caution early this morning due to patchy dense fog. Visibilities will be restricted to less than 1 nm at times from Jacksonville northward to Brunswick Georgia. Navigation may be hazardous in restricted waterways and channels. Conditions should improve by the mid to late morning hours. $$