National Weather Service Marine Forecast FZUS52 KJAX

FZUS52 KJAX 190134
CWFJAX

Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
934 PM EDT Mon Mar 18 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.

AMZ400-190915
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm
934 PM EDT Mon Mar 18 2024

SYNOPSIS

A strong pressure gradient between exiting cold front, and high pressure building from the northwest will yield gale force wind gusts Tonight. The gradient will weaken on Tuesday, allowing the winds to trend down.

High pressure will then be the prevailing weather feature affecting the area through Wednesday night. An area of low pressure will move across the region from the Gulf late in the week, with a high building over the weekend.

GULF STREAM

The approximate location of the west wall of the Gulf Stream as of Mar 16, 2024 at 1200 UTC...

64 nautical miles east of Flagler Beach. 73 nautical miles east of Saint Augustine Beach. 82 nautical miles east of Jacksonville Beach. 94 nautical miles east of St Simons Island.

This data courtesy of the Naval Oceanographic Office.


AMZ450-452-454-190915
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
934 PM EDT Mon Mar 18 2024

GALE WARNING IN EFFECT UNTIL 8 AM EDT TUESDAY

REST OF TONIGHT
Northwest winds 25 to 30 knots with gusts up to 40 knots. Seas 4 to 6 feet with a dominant period 3 seconds. Intracoastal waters very rough.

TUESDAY
North winds 20 to 25 knots, becoming northeast 5 to 10 knots in the afternoon. Seas 4 to 6 feet with a dominant period 6 seconds. Intracoastal waters rough.

TUESDAY NIGHT
South winds 5 to 10 knots, becoming west after midnight. Seas 2 to 3 feet with a dominant period 6 seconds. Intracoastal waters light chop.

WEDNESDAY
West winds 5 to 10 knots, becoming south in the afternoon. Seas 2 to 3 feet with a dominant period 7 seconds. Intracoastal waters light chop.

WEDNESDAY NIGHT
Southwest winds 5 to 10 knots, becoming west after midnight. Seas around 2 feet with a dominant period 7 seconds. Intracoastal waters light chop.

THURSDAY
North winds 5 to 10 knots, becoming northeast in the afternoon. Seas around 2 feet with a dominant period 7 seconds. Intracoastal waters light chop.

THURSDAY NIGHT
East winds 10 to 15 knots. Seas 2 to 3 feet with a dominant period 7 seconds. Intracoastal waters a moderate chop. A chance of showers.

FRIDAY
Southeast winds 15 to 20 knots. Seas 3 to 5 feet. Showers with a slight chance of thunderstorms.

FRIDAY NIGHT
Northwest winds 10 to 15 knots. Seas 4 to 5 feet. A chance of showers with a slight chance of thunderstorms.

SATURDAY
North winds around 15 knots. Seas 4 to 5 feet. A slight chance of showers.

SATURDAY NIGHT
North winds 15 to 20 knots. Seas 4 to 6 feet.

Winds and waves higher in and near thunderstorms.


AMZ470-472-474-190915
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
934 PM EDT Mon Mar 18 2024

GALE WARNING IN EFFECT UNTIL 8 AM EDT TUESDAY

REST OF TONIGHT
Northwest winds 25 to 30 knots with gusts up to 45 knots. Seas 4 to 6 feet with a dominant period 4 seconds, building to 6 to 9 feet with a dominant period 4 seconds after midnight.

TUESDAY
North winds 20 to 25 knots with gusts up to 35 knots, diminishing to 5 to 10 knots in the afternoon. Seas 6 to 9 feet with a dominant period 7 seconds, subsiding to 4 to 6 feet with a dominant period 7 seconds in the afternoon.

TUESDAY NIGHT
Southwest winds 5 to 10 knots, becoming west 10 to 15 knots after midnight. Seas 3 to 5 feet with a dominant period 7 seconds.

WEDNESDAY
West winds 5 to 10 knots, becoming southwest 10 to 15 knots in the afternoon. Seas 2 to 4 feet with a dominant period 7 seconds.

WEDNESDAY NIGHT
Southwest winds 10 to 15 knots, becoming northwest 5 to 10 knots after midnight. Seas 2 to 3 feet with a dominant period 7 seconds.

THURSDAY
North winds 5 to 10 knots, becoming east in the afternoon. Seas around 2 feet with a dominant period 7 seconds.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 4 feet with a dominant period 7 seconds. A chance of showers.

FRIDAY
Southeast winds 20 to 25 knots. Seas 5 to 7 feet. Showers with a slight chance of thunderstorms.

FRIDAY NIGHT
Southwest winds 10 to 15 knots, becoming northwest 15 to 20 knots after midnight. Seas 5 to 7 feet. Showers likely with a chance of thunderstorms.

SATURDAY
North winds 15 to 20 knots. Seas 5 to 7 feet. A slight chance of showers and thunderstorms.

SATURDAY NIGHT
North winds around 20 knots. Seas 5 to 7 feet. A slight chance of showers.

Winds and seas higher in and near thunderstorms.