


Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
371 FZUS52 KJAX 091850 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 250 PM EDT Sun Mar 9 2025 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. AMZ400-100915- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 250 PM EDT Sun Mar 9 2025 .SYNOPSIS... The cold front will continue pushing southward becoming stationary over the northeast Florida waters by late this afternoon. Northeasterly winds will overspread our local waters from north to south today, with speeds just below Small Craft Advisory levels expected across the Georgia waters. Meanwhile, low pressure moving eastward along the northern Gulf coast will slowly strengthen as it approaches the Florida panhandle and Big Bend coasts tonight, with the stalled frontal boundary lifting back northward across the Georgia waters late tonight. Showers and thunderstorms will spread over our region this morning, with strong to isolated severe thunderstorms possible across our local waters after midnight tonight. Strengthening low pressure will cross our area on Monday morning, with gusty south-southwesterly winds during the morning, shifting to westerly during the afternoon and then northwesterly towards sunset. Gale conditions will be in place over offshore waters Monday night along with Small Craft Advisory conditions for nearshore waters, with winds and seas diminishing Tuesday afternoon and evening as low pressure accelerates towards Bermuda and weak high pressure builds along the northern Gulf coast. High pressure will then migrate across the Florida peninsula on Wednesday, moving offshore by Wednesday night, with prevailing southerly winds developing locally through Thursday. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Mar 08, 2025 at 1200 UTC... 57 nautical miles east of Flagler Beach. 66 nautical miles east of Saint Augustine Beach. 82 nautical miles east of Jacksonville Beach. 97 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ452-454-100915- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 250 PM EDT Sun Mar 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY MORNING... .TONIGHT...East winds 10 to 15 knots, becoming south after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms this evening, then showers likely with a chance of thunderstorms after midnight. .MONDAY...Southwest winds 15 to 20 knots, becoming west 20 to 25 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southwest 4 feet at 5 seconds and northeast 3 feet at 7 seconds. Intracoastal waters rough. Showers with a chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. .MONDAY NIGHT...Northwest winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest 5 feet at 6 seconds and southeast 2 feet at 6 seconds. Intracoastal waters rough. A slight chance of showers in the evening. .TUESDAY...Northwest winds 15 to 20 knots, becoming north 10 to 15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 5 feet at 6 seconds. Intracoastal waters choppy. .TUESDAY NIGHT...Southwest winds around 5 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: North 3 feet at 6 seconds and northeast 3 feet at 10 seconds. Intracoastal waters smooth. .WEDNESDAY AND WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 11 seconds and northeast 2 feet at 8 seconds. Intracoastal waters light chop. .THURSDAY THROUGH FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Winds and waves higher in and near thunderstorms. $$ AMZ472-474-100915- 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- 250 PM EDT Sun Mar 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY AFTERNOON... ...GALE WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY MORNING... .TONIGHT...Southeast winds 10 to 15 knots, becoming south 15 to 20 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: North 4 feet at 7 seconds and southeast 3 feet at 4 seconds. A slight chance of thunderstorms. A chance of showers this evening, then showers likely after midnight. .MONDAY...Southwest winds 20 to 25 knots, becoming west 25 to 30 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Southwest 5 feet at 5 seconds and northeast 3 feet at 7 seconds. Showers with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. .MONDAY NIGHT...Northwest winds 25 to 30 knots with gusts up to 40 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: West 8 feet at 6 seconds and south 3 feet at 6 seconds. A slight chance of showers in the evening. .TUESDAY...Northwest winds 20 to 25 knots with gusts up to 35 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: North 7 feet at 7 seconds. .TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 11 seconds and north 3 feet at 7 seconds. .WEDNESDAY...Northwest winds 5 to 10 knots, becoming south in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 11 seconds and northeast 2 feet at 7 seconds. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. .THURSDAY...South winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. A slight chance of showers through the night. .FRIDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Winds and seas higher in and near thunderstorms. $$ AMZ450-100915- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- 250 PM EDT Sun Mar 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY MORNING... .TONIGHT...Northeast winds 15 to 20 knots, becoming southeast 10 to 15 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 4 feet at 6 seconds. Intracoastal waters choppy. Showers. A slight chance of thunderstorms this evening, then a chance of thunderstorms after midnight. .MONDAY...Southwest winds around 15 knots, becoming west in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 6 seconds and south 3 feet at 6 seconds. Intracoastal waters choppy. Showers with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. .MONDAY NIGHT...Northwest winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest 4 feet at 5 seconds and southeast 2 feet at 6 seconds. Intracoastal waters rough. A slight chance of showers in the evening. .TUESDAY...Northwest winds 15 to 20 knots, becoming west 5 to 10 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: North 3 feet at 6 seconds. Intracoastal waters choppy. .TUESDAY NIGHT...West winds around 5 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 9 seconds and north 2 feet at 5 seconds. Intracoastal waters smooth. .WEDNESDAY AND WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 9 seconds. Intracoastal waters light chop. .THURSDAY THROUGH FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. Winds and waves higher in and near thunderstorms. $$ AMZ470-100915- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- 250 PM EDT Sun Mar 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH MONDAY AFTERNOON... ...GALE WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY MORNING... .TONIGHT...East winds 15 to 20 knots, becoming southeast after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 7 seconds and southeast 3 feet at 4 seconds. Showers. A slight chance of thunderstorms this evening, then a chance of thunderstorms after midnight. .MONDAY...Southwest winds 15 to 20 knots, becoming west 20 to 25 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Southwest 4 feet at 5 seconds and northeast 3 feet at 6 seconds. Showers with a chance of thunderstorms in the morning, then a chance of showers in the afternoon. .MONDAY NIGHT...Northwest winds 25 to 30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: Northwest 7 feet at 6 seconds and south 3 feet at 6 seconds. A chance of showers in the evening. .TUESDAY...Northwest winds 20 to 25 knots, diminishing to 10 to 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: North 6 feet at 6 seconds. .TUESDAY NIGHT...West winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 8 seconds. .WEDNESDAY AND WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 10 seconds. .THURSDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers in the evening. .FRIDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Winds and seas higher in and near thunderstorms. $$