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670 FZUS52 KJAX 200648 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 248 AM EDT Tue Oct 20 2020 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. AMZ400-202130- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 248 AM EDT Tue Oct 20 2020 .SYNOPSIS... An extended period of onshore flow will continue across the local waters with surface high pressure anchored northeast of the region through the weekend. Long period easterly swells from distant Tropical Storm Epsilon will build within the local waters Thursday and continue through the weekend as the storm remains well east of the Atlantic coast. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Oct 20, 2020 at 1200 UTC... 44 nautical miles east northeast of Flagler Beach. 53 nautical miles east of Saint Augustine Beach. 69 nautical miles east southeast of Jacksonville Beach. 74 nautical miles east southeast of St Simons Island. This data courtesy of the Naval Oceanographic Office. $$ AMZ450-452-454-202130- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 248 AM EDT Tue Oct 20 2020 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TODAY...Northeast winds 15 knots. Seas 4 to 6 feet with a dominant period 7 seconds. A moderate chop on the intracoastal waters. Chance of showers and slight chance of thunderstorms. .TONIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with a dominant period 7 seconds. A light chop on the intracoastal waters. Chance of showers and slight chance of thunderstorms. .WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with a dominant period 9 seconds. A moderate chop on the intracoastal waters. Chance of showers and slight chance of thunderstorms. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet. A light chop on the intracoastal waters. Chance of showers and slight chance of thunderstorms. .THURSDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. A moderate chop on the intracoastal waters. Chance of showers and slight chance of thunderstorms. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 7 feet. Slight chance of showers and thunderstorms. .FRIDAY...East winds 10 knots. Seas 5 to 7 feet. Chance of showers and slight chance of thunderstorms. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 4 to 6 feet. Chance of showers and slight chance of thunderstorms. .SATURDAY...Northeast winds 5 to 10 knots. Seas 3 to 5 feet. Chance of showers and slight chance of thunderstorms. $$ AMZ470-202130- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- 248 AM EDT Tue Oct 20 2020 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TODAY...Northeast winds 15 knots. Seas 4 to 6 feet with a dominant period 7 seconds. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. .TONIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet with a dominant period 8 seconds. Chance of showers and slight chance of thunderstorms. .WEDNESDAY...East winds 10 to 15 knots. Seas 5 to 7 feet with a dominant period 9 seconds. Slight chance of thunderstorms in the morning. Chance of showers. Chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds 15 knots. Seas 5 to 7 feet. Chance of showers and slight chance of thunderstorms. .THURSDAY...East winds 15 knots. Seas 5 to 7 feet. Chance of showers and slight chance of thunderstorms. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas 6 to 8 feet. Slight chance of showers and thunderstorms. .FRIDAY...East winds 10 knots. Seas 6 to 8 feet. Chance of showers and slight chance of thunderstorms. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 5 to 7 feet. Chance of showers and slight chance of thunderstorms. .SATURDAY...Northeast winds 5 to 10 knots. Seas 5 to 7 feet. Chance of showers and slight chance of thunderstorms. $$ AMZ472-474-202130- Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM- 248 AM EDT Tue Oct 20 2020 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON... .TODAY...East winds 15 to 20 knots. Seas 5 to 7 feet with a dominant period 8 seconds. Chance of showers and slight chance of thunderstorms. .TONIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet with a dominant period 9 seconds. Chance of showers and slight chance of thunderstorms. .WEDNESDAY...East winds 15 knots. Seas 6 to 8 feet with a dominant period 9 seconds. Chance of showers and slight chance of thunderstorms. .WEDNESDAY NIGHT...East winds 15 knots. Seas 6 to 8 feet. Chance of showers and slight chance of thunderstorms. .THURSDAY...East winds 15 knots. Seas 6 to 8 feet. Chance of showers and slight chance of thunderstorms. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas 6 to 9 feet. Slight chance of showers and thunderstorms. .FRIDAY...East winds 10 to 15 knots. Seas 6 to 9 feet. Chance of showers and slight chance of thunderstorms. .FRIDAY NIGHT...East winds 5 to 10 knots. Seas 6 to 9 feet. Chance of showers and slight chance of thunderstorms. .SATURDAY...Northeast winds 5 to 10 knots. Seas 5 to 7 feet. Chance of showers and slight chance of thunderstorms. $$