251
FZUS52 KJAX 170523
CWFJAX
COASTAL WATERS FORECAST FOR NORTHEAST FLORIDA/SOUTHEAST GEORGIA
NATIONAL WEATHER SERVICE JACKSONVILLE FL
123 AM EDT TUE MAR 17 2026
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.
AMZ400-172030-
SYNOPSIS FOR ALTAMAHA SOUND GA TO FLAGLER BEACH FL OUT TO 60 NM-
123 AM EDT TUE MAR 17 2026
SYNOPSIS
SMALL CRAFT ADVISORY CONDITIONS CONTINUE AS A STRONG COLD FRONT
MOVES SOUTH OF THE WATERS THIS MORNING WITH GUSTY NORTHWESTERLY
WINDS AND ELEVATED SEAS. WINDS SUBSIDE AND SHIFT TO NORTHERLY THIS
AFTERNOON AND THEN NORTHEASTERLY BY WEDNESDAY AS HIGH PRESSURE
SHIFTS NORTHEASTWARD TOWARDS THE MID-ATLANTIC COAST. THIS
STRENGTHENING HIGH PRESSURE CENTER WILL WEDGE DOWN THE SOUTHEASTERN
SEABOARD LATER THIS WEEK, CREATING ANOTHER ROUND OF SMALL CRAFT
EXERCISE CAUTION CONDITIONS ON WEDNESDAY NIGHT AND THURSDAY. WINDS
AND SEAS ARE EXPECTED TO DIMINISH BY FRIDAY AFTERNOON.
GULF STREAM
THE APPROXIMATE LOCATION OF THE WEST WALL OF THE GULF STREAM AS OF
MAR 16, 2026 AT 0000 UTC...
50 NAUTICAL MILES EAST OF FLAGLER BEACH.
58 NAUTICAL MILES EAST OF SAINT AUGUSTINE BEACH.
70 NAUTICAL MILES EAST SOUTHEAST OF JACKSONVILLE BEACH.
68 NAUTICAL MILES EAST SOUTHEAST OF ST SIMONS ISLAND.
THIS DATA DERIVED FROM NCEP GLOBAL RTOFS MODEL.
AMZ450-452-454-172030-
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-
123 AM EDT TUE MAR 17 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF TONIGHT
NORTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS UP
TO 35 KNOTS. SEAS 4 TO 6 FEET, OCCASIONALLY TO 8 FEET. WAVE
DETAIL: NORTHWEST 5 FEET AT 4 SECONDS AND SOUTHEAST 3 FEET AT
7 SECONDS. INTRACOASTAL WATERS ROUGH.
TUESDAY
NORTHWEST WINDS AROUND 20 KNOTS, DIMINISHING TO 10 TO
15 KNOTS IN THE AFTERNOON. SEAS 4 TO 6 FEET, OCCASIONALLY TO 8
FEET. WAVE DETAIL: NORTH 5 FEET AT 5 SECONDS AND NORTHEAST 3 FEET
AT 8 SECONDS. INTRACOASTAL WATERS CHOPPY.
TUESDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET,
OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTH 4 FEET AT 6 SECONDS.
INTRACOASTAL WATERS A MODERATE CHOP.
WEDNESDAY
NORTH WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO
20 KNOTS IN THE AFTERNOON. SEAS 3 TO 5 FEET, OCCASIONALLY TO
6 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT 7 SECONDS. INTRACOASTAL
WATERS CHOPPY.
WEDNESDAY NIGHT
NORTH WINDS 15 TO 20 KNOTS, INCREASING TO
20 TO 25 KNOTS AFTER MIDNIGHT. SEAS 4 TO 6 FEET, OCCASIONALLY TO
8 FEET. WAVE DETAIL: NORTHEAST 6 FEET AT 7 SECONDS. INTRACOASTAL
WATERS ROUGH.
THURSDAY
NORTH WINDS 20 TO 25 KNOTS, BECOMING NORTHEAST 15 TO
20 KNOTS IN THE AFTERNOON. SEAS 5 TO 7 FEET, OCCASIONALLY TO
9 FEET. WAVE DETAIL: NORTHEAST 6 FEET AT 7 SECONDS. INTRACOASTAL
WATERS ROUGH.
THURSDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. INTRACOASTAL WATERS A MODERATE CHOP.
FRIDAY THROUGH SATURDAY
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS
3 TO 5 FEET, OCCASIONALLY TO 6 FEET. INTRACOASTAL WATERS A
MODERATE CHOP.
AMZ470-472-474-172030-
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-
123 AM EDT TUE MAR 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF TONIGHT
NORTHWEST WINDS AROUND 25 KNOTS WITH GUSTS UP
TO 35 KNOTS. SEAS 6 TO 8 FEET, OCCASIONALLY TO 10 FEET. WAVE
DETAIL: NORTHWEST 7 FEET AT 6 SECONDS AND SOUTHEAST 4 FEET AT
8 SECONDS.
TUESDAY
NORTHWEST WINDS AROUND 20 KNOTS. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET. WAVE DETAIL: NORTHWEST 7 FEET AT 6 SECONDS
AND SOUTHEAST 3 FEET AT 8 SECONDS.
TUESDAY NIGHT
NORTH WINDS AROUND 15 KNOTS. SEAS 4 TO 5 FEET,
OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTH 4 FEET AT 7 SECONDS.
WEDNESDAY
NORTH WINDS AROUND 15 KNOTS. SEAS 4 TO 5 FEET,
OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTH 5 FEET AT 7 SECONDS.
WEDNESDAY NIGHT
NORTH WINDS AROUND 15 KNOTS, INCREASING TO
20 TO 25 KNOTS AFTER MIDNIGHT. SEAS 4 TO 6 FEET, OCCASIONALLY TO
8 FEET. WAVE DETAIL: NORTH 6 FEET AT 7 SECONDS. A SLIGHT CHANCE
OF SHOWERS.
THURSDAY
NORTH WINDS 20 TO 25 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. A SLIGHT CHANCE
OF SHOWERS.
THURSDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET.
FRIDAY THROUGH SATURDAY
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS
4 TO 6 FEET, OCCASIONALLY TO 8 FEET.
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