Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
743 FZUS52 KJAX 171811 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 211 PM EDT Mon Jun 17 2024 Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach FL out to 60 nm. Seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 1/10 of the waves. AMZ400-180930- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 211 PM EDT Mon Jun 17 2024 .SYNOPSIS... Strong high pressure will remain anchored off coastal New England through Thursday. This feature will create gradually increasing onshore winds and building seas across our local waters, with Caution conditions expected tonight and then Small Craft Advisory conditions developing offshore by Tuesday afternoon. Meanwhile, a trough situated to the northeast of the Bahamas will be steered westward towards the southeastern seaboard late this week, with weak low pressure possibly developing as this system traverses the Gulf Stream waters. Showers and thunderstorms are expected to increase in coverage late this week and through the upcoming weekend across our local waters. High pressure will weaken late this week as it sinks slowly southward towards Bermuda, with the axis of this surface ridge extending across our area during the upcoming weekend. Winds and seas will gradually diminish as prevailing winds shift to southeasterly on Saturday and then southerly by Sunday. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Jun 13, 2024 at 1200 UTC... 62 nautical miles east northeast of Flagler Beach. 66 nautical miles east of Saint Augustine Beach. 75 nautical miles east of Jacksonville Beach. 93 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-180930- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 211 PM EDT Mon Jun 17 2024 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 6 seconds. Intracoastal waters choppy. A chance of showers. .TUESDAY THROUGH WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. Intracoastal waters choppy. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds and northeast 2 feet at 7 seconds. Intracoastal waters choppy. A chance of showers and thunderstorms. .FRIDAY AND FRIDAY NIGHT...East northeast winds around 15 knots, becoming southeast during the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 10 seconds and northeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. Showers and thunderstorms likely. .SATURDAY...Southeast winds around 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters a light chop. Showers and thunderstorms likely. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-180930- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM- 211 PM EDT Mon Jun 17 2024 ...SMALL CRAFT SHOULD EXERCISE CAUTION... ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE THURSDAY NIGHT... .TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 7 seconds. A chance of showers. .TUESDAY...East winds 15 to 20 knots, increasing to around 20 knots late in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...East winds around 20 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .WEDNESDAY AND WEDNESDAY NIGHT...East winds around 20 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds. A chance of showers and thunderstorms. .THURSDAY AND THURSDAY NIGHT...East winds around 20 knots. Seas around 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds and northeast 3 feet at 7 seconds. A chance of showers and thunderstorms. .FRIDAY AND FRIDAY NIGHT...East northeast winds around 15 knots, becoming southeast in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Showers and thunderstorms. .SATURDAY...Southeast winds around 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Showers and thunderstorms likely. Winds and seas higher in and near thunderstorms. $$