018
FZUS52 KJAX 161438
CWFJAX
COASTAL WATERS FORECAST FOR NORTHEAST FLORIDA/SOUTHEAST GEORGIA
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1038 AM EDT MON MAR 16 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.
AMZ400-170545-
SYNOPSIS FOR ALTAMAHA SOUND GA TO FLAGLER BEACH FL OUT TO 60 NM-
1038 AM EDT MON MAR 16 2026
SYNOPSIS
SMALL CRAFT ADVISORY CONDITIONS DEVELOP THIS MORNING AHEAD OF A
STRONG COLD FRONTAL BOUNDARY WHICH WILL PUSH INTO THE LOCAL WATERS
THIS AFTERNOON. STRONG TO SEVERE THUNDERSTORMS ARE FORECAST TO
IMPACT OUR LOCAL WATERS THIS AFTERNOON, WITH THE POTENTIAL FOR
DAMAGING WIND GUSTS, WATERSPOUTS, AND LARGE HAIL. WINDS WILL SHIFT
TO WESTERLY FOLLOWING THE PASSAGE OF THE STRONG COLD FRONT, WITH
STRONG NORTHWESTERLY WINDS FORECAST TONIGHT AND TUESDAY MORNING
THROUGHOUT OUR LOCAL WATERS WITH GALE FORCE GUSTS POSSIBLE AS HIGH
PRESSURE BUILDS INTO THE SOUTHEASTERN STATES. WINDS WILL SHIFT TO
NORTHERLY ON TUESDAY 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 ADVISORY 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 15, 2026 AT 0000 UTC...
50 NAUTICAL MILES EAST OF FLAGLER BEACH.
53 NAUTICAL MILES EAST OF SAINT AUGUSTINE BEACH.
64 NAUTICAL MILES EAST SOUTHEAST OF JACKSONVILLE BEACH.
68 NAUTICAL MILES EAST SOUTHEAST OF ST SIMONS ISLAND.
THIS DATA DERIVED FROM NCEP GLOBAL RTOFS MODEL.
AMZ450-452-454-170545-
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-
1038 AM EDT MON MAR 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING
REST OF TODAY
SOUTH WINDS 15 TO 20 KNOTS, BECOMING SOUTHWEST
20 TO 25 KNOTS THIS AFTERNOON. SEAS 4 TO 5 FEET, OCCASIONALLY TO
6 FEET. WAVE DETAIL: SOUTH 5 FEET AT 6 SECONDS. INTRACOASTAL
WATERS ROUGH. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS EARLY
THIS MORNING, THEN SHOWERS WITH THUNDERSTORMS LIKELY THIS
AFTERNOON.
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 5 SECONDS AND SOUTHEAST 4 FEET AT 7 SECONDS.
INTRACOASTAL WATERS ROUGH. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
TUESDAY
NORTHWEST WINDS 20 TO 25 KNOTS, BECOMING NORTH 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 EAST 3 FEET AT
8 SECONDS. INTRACOASTAL WATERS ROUGH.
TUESDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTH 4 FEET AT 6 SECONDS.
INTRACOASTAL WATERS A MODERATE CHOP.
WEDNESDAY AND WEDNESDAY NIGHT
NORTH WINDS 15 TO 20 KNOTS. SEAS
3 TO 5 FEET, OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTHEAST
5 FEET AT 6 SECONDS. INTRACOASTAL WATERS CHOPPY.
THURSDAY
NORTH WINDS 15 TO 20 KNOTS, DIMINISHING TO 10 TO
15 KNOTS. SEAS 4 TO 6 FEET, OCCASIONALLY TO 8 FEET. WAVE DETAIL:
NORTHEAST 6 FEET AT 7 SECONDS. INTRACOASTAL WATERS CHOPPY.
FRIDAY
NORTH WINDS 10 TO 15 KNOTS, BECOMING SOUTH. SEAS 3 TO
5 FEET, OCCASIONALLY TO 6 FEET. INTRACOASTAL WATERS A MODERATE
CHOP.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
AMZ470-472-474-170545-
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-
1038 AM EDT MON MAR 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
REST OF TODAY
SOUTH WINDS 20 TO 25 KNOTS WITH GUSTS UP TO
35 KNOTS. SEAS 5 TO 7 FEET, OCCASIONALLY TO 9 FEET. WAVE DETAIL:
SOUTH 7 FEET AT 6 SECONDS. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS EARLY THIS MORNING, THEN SHOWERS LIKELY
WITH A CHANCE OF THUNDERSTORMS THIS AFTERNOON.
TONIGHT
NORTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS UP TO
35 KNOTS. SEAS 6 TO 8 FEET, OCCASIONALLY TO 10 FEET. WAVE DETAIL:
WEST 6 FEET AT 5 SECONDS AND SOUTHEAST 6 FEET AT 8 SECONDS. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING.
TUESDAY
NORTHWEST 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: NORTHWEST 6 FEET AT 6 SECONDS AND SOUTHEAST
3 FEET AT 8 SECONDS.
TUESDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET,
OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTH 4 FEET AT 7 SECONDS.
WEDNESDAY AND WEDNESDAY NIGHT
NORTH WINDS 15 TO 20 KNOTS. SEAS
4 TO 6 FEET, OCCASIONALLY TO 8 FEET. WAVE DETAIL: NORTHEAST
6 FEET AT 7 SECONDS.
THURSDAY
NORTH WINDS 15 TO 20 KNOTS. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET. WAVE DETAIL: NORTHEAST 7 FEET AT
8 SECONDS. A SLIGHT CHANCE OF SHOWERS THROUGH THE DAY.
FRIDAY
NORTH WINDS 15 TO 20 KNOTS, BECOMING SOUTHWEST 10 TO
15 KNOTS. SEAS 4 TO 6 FEET, OCCASIONALLY TO 8 FEET.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
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