FZUS72 KJAX 220056 MWSJAX Marine Weather Statement National Weather Service Jacksonville FL 856 PM EDT Fri Aug 21 2026 AMZ450-220200- 856 PM EDT Fri Aug 21 2026 A Marine Weather Statement has been issued for the following areas... Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM... At 856 PM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located 12 nm west of Jekyll Island, or 16 nm southwest of St. Simons Island, moving east at 20 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. This strong thunderstorm will likely produce winds to around 30 knots, and could pose a serious hazard for boaters. A special marine warning may eventually be required when this strong thunderstorm reaches the nearshore waters. Boaters should consider heading for shore before this strong thunderstorm arrives. && LAT...LON 3092 8157 3099 8166 3102 8165 3104 8158 3110 8163 3113 8110 3069 8116 3085 8168 $$ SHASHY