Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
376 FZUS52 KJAX 172354 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 754 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. AMZ400-180915- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 754 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. $$ AMZ450-452-454-180915- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 754 PM EDT Mon Jun 17 2024 ...SMALL CRAFT EXERCISE CAUTION... .REST OF TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 6 seconds. Intracoastal waters choppy. A slight chance of showers and thunderstorms early, then a chance of showers. .TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 7 seconds. Intracoastal waters choppy. A chance of showers. A slight chance of thunderstorms in the afternoon. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. Intracoastal waters choppy. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds. Intracoastal waters choppy. A chance of rain with a slight chance of thunderstorms. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds and northeast 2 feet at 7 seconds. Intracoastal waters choppy. A chance of rain and thunderstorms. .FRIDAY THROUGH SATURDAY...South winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 9 seconds and northeast 2 feet at 7 seconds. Intracoastal waters a moderate chop. Rain likely with a chance of thunderstorms. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-180915- 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- 754 PM EDT Mon Jun 17 2024 ...SMALL CRAFT EXERCISE CAUTION... ...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE THURSDAY NIGHT... .REST OF TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 6 seconds. A slight chance of thunderstorms early. A chance of showers. .TUESDAY...East winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 6 feet at 7 seconds. A chance of showers. A slight chance of thunderstorms in the afternoon. .TUESDAY NIGHT...East winds 15 to 20 knots. Seas 5 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...East winds 15 to 20 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 8 seconds. A chance of rain. A slight chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds around 20 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: East 7 feet at 8 seconds. A chance of rain with a slight chance of thunderstorms. .THURSDAY...East winds 15 to 20 knots. Seas 7 to 8 feet, occasionally to 10 feet. Wave Detail: East 7 feet at 8 seconds and northeast 3 feet at 8 seconds. A chance of thunderstorms. A chance of rain in the morning, then rain likely in the afternoon. .THURSDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of rain and thunderstorms. .FRIDAY...Northeast winds 10 to 15 knots, becoming southeast 5 to 10 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of rain with a slight chance of thunderstorms in the morning, then rain likely in the afternoon. A chance of thunderstorms through the night. A chance of rain through the night. A slight chance of thunderstorms after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of thunderstorms in the morning. Rain likely through the day. A chance of thunderstorms through the night. A chance of rain through the night. Winds and seas higher in and near thunderstorms. $$