FZUS72 KJAX 170030 MWSJAX Marine Weather Statement National Weather Service Jacksonville FL 830 PM EDT Sun Aug 16 2026 AMZ452-170130- 830 PM EDT Sun Aug 16 2026 ...A STRONG THUNDERSTORM APPROACHING THE WATERS... The areas affected include... Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM... At 830 PM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located near Guana River State Park, or 13 nm northwest of Saint Augustine, moving east at 10 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. && LAT...LON 3025 8114 2991 8110 2994 8138 3010 8141 3018 8145 $$ KB