272
FZUS52 KJAX 201137
CWFJAX
COASTAL WATERS FORECAST FOR NORTHEAST FLORIDA/SOUTHEAST GEORGIA
NATIONAL WEATHER SERVICE JACKSONVILLE FL
737 AM EDT TUE OCT 20 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.
AMZ400-210245-
SYNOPSIS FOR ALTAMAHA SOUND GA TO FLAGLER BEACH FL OUT TO 60 NM-
737 AM EDT TUE OCT 20 2026
SYNOPSIS
GUSTY NORTHEAST WINDS WILL CONTINUE TO CREATE HAZARDOUS SEAS
THROUGHOUT THE LOCAL WATERS AS STRENGTHENING LOW PRESSURE MEANDERS
TO THE EAST OF THE NORTH CAROLINA OUTER BANKS AND HIGH PRESSURE
PUSHES DOWN THE EAST COAST. SEAS WILL SLOWLY DIMINISH ACROSS THE
NEAR SHORE WATERS ADJACENT TO SOUTHEAST GEORGIA BY MIDWEEK AS LOW
PRESSURE BEGINS TO MOVE AWAY, WHILE SMALL CRAFT ADVISORY LEVEL SEAS
WILL PERSIST ELSEWHERE THROUGH FRIDAY. ANOTHER STRONG HIGH PRESSURE
CENTER WILL THEN BUILD OUT OF THE GREAT LAKES AND NEW ENGLAND ON
FRIDAY, AND PUSH NORTH TO NORTHEAST WINDS UP TO GALE FORCE BY FRIDAY
EVENING, KEEPING HAZARDOUS MARINE CONDITIONS IN PLACE THROUGH THE
WEEKEND.
GULF STREAM
THE APPROXIMATE LOCATION OF THE WEST WALL OF THE GULF STREAM AS OF
OCT 19, 2026 AT 0000 UTC...
54 NAUTICAL MILES EAST OF FLAGLER BEACH.
58 NAUTICAL MILES EAST OF SAINT AUGUSTINE BEACH.
70 NAUTICAL MILES EAST SOUTHEAST OF JACKSONVILLE BEACH.
80 NAUTICAL MILES EAST SOUTHEAST OF ST SIMONS ISLAND.
THIS DATA DERIVED FROM NCEP GLOBAL RTOFS MODEL.
AMZ452-454-210245-
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT
20 NM-
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM-
737 AM EDT TUE OCT 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
TODAY
NORTH WINDS 15 TO 20 KNOTS. SEAS 7 TO 8 FEET,
OCCASIONALLY TO 10 FEET. WAVE DETAIL: NORTHEAST 8 FEET AT
13 SECONDS. INTRACOASTAL WATERS CHOPPY.
TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 8 FEET,
OCCASIONALLY TO 10 FEET. WAVE DETAIL: NORTHEAST 8 FEET AT
12 SECONDS. INTRACOASTAL WATERS CHOPPY.
WEDNESDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 7 FEET,
OCCASIONALLY TO 9 FEET. WAVE DETAIL: NORTHEAST 7 FEET AT
12 SECONDS AND NORTHEAST 3 FEET AT 6 SECONDS. INTRACOASTAL WATERS
CHOPPY.
WEDNESDAY NIGHT
NORTH WINDS 15 TO 20 KNOTS. SEAS 6 TO 7 FEET,
OCCASIONALLY TO 9 FEET. WAVE DETAIL: NORTHEAST 7 FEET AT
11 SECONDS AND NORTHEAST 3 FEET AT 6 SECONDS. INTRACOASTAL WATERS
CHOPPY.
THURSDAY AND THURSDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS.
SEAS 6 TO 7 FEET, OCCASIONALLY TO 9 FEET. WAVE DETAIL: NORTHEAST
7 FEET AT 12 SECONDS AND NORTHEAST 3 FEET AT 5 SECONDS.
INTRACOASTAL WATERS CHOPPY.
FRIDAY
NORTHEAST WINDS 25 TO 30 KNOTS. SEAS 6 TO 8 FEET,
OCCASIONALLY TO 10 FEET, BUILDING TO 10 TO 12 FEET, OCCASIONALLY
TO 15 FEET. WAVE DETAIL: NORTHEAST 8 FEET AT 6 SECONDS AND
NORTHEAST 6 FEET AT 12 SECONDS, BECOMING NORTHEAST 12 FEET AT
8 SECONDS AND EAST 3 FEET AT 12 SECONDS. INTRACOASTAL WATERS VERY
ROUGH. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SATURDAY
NORTHEAST WINDS 25 TO 30 KNOTS. SEAS 11 TO 12 FEET,
OCCASIONALLY TO 15 FEET. INTRACOASTAL WATERS VERY ROUGH. SHOWERS
LIKELY THROUGH THE DAY, THEN A CHANCE OF SHOWERS THROUGH THE
NIGHT.
AMZ450-210245-
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT
20 NM-
737 AM EDT TUE OCT 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
TODAY
NORTH WINDS 15 TO 20 KNOTS. SEAS 6 TO 7 FEET,
OCCASIONALLY TO 9 FEET. WAVE DETAIL: EAST 7 FEET AT 13 SECONDS
AND NORTHEAST 3 FEET AT 6 SECONDS. INTRACOASTAL WATERS CHOPPY.
TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET. WAVE DETAIL: EAST 7 FEET AT 12 SECONDS
AND NORTHEAST 4 FEET AT 6 SECONDS. INTRACOASTAL WATERS CHOPPY.
WEDNESDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 6 FEET,
OCCASIONALLY TO 8 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT
6 SECONDS AND EAST 5 FEET AT 12 SECONDS. INTRACOASTAL WATERS
CHOPPY.
WEDNESDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. WAVE DETAIL: EAST 5 FEET AT 12 SECONDS
AND NORTHEAST 4 FEET AT 7 SECONDS. INTRACOASTAL WATERS A MODERATE
CHOP.
THURSDAY AND THURSDAY NIGHT
NORTHEAST WINDS 10 TO 15 KNOTS.
SEAS 4 TO 5 FEET, OCCASIONALLY TO 6 FEET. WAVE DETAIL: EAST
5 FEET AT 12 SECONDS. INTRACOASTAL WATERS A MODERATE CHOP.
FRIDAY
NORTHEAST WINDS 25 TO 30 KNOTS. SEAS 4 TO 5 FEET,
OCCASIONALLY TO 6 FEET, BUILDING TO 8 TO 11 FEET, OCCASIONALLY TO
14 FEET. WAVE DETAIL: EAST 5 FEET AT 12 SECONDS AND NORTHEAST
4 FEET AT 5 SECONDS, BECOMING EAST 10 FEET AT 8 SECONDS AND EAST
2 FEET AT 12 SECONDS. INTRACOASTAL WATERS VERY ROUGH. A SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT.
SATURDAY
NORTHEAST WINDS 25 TO 30 KNOTS. SEAS 8 TO 11 FEET,
OCCASIONALLY TO 14 FEET. INTRACOASTAL WATERS VERY ROUGH. A CHANCE
OF SHOWERS .
AMZ472-474-210245-
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-
737 AM EDT TUE OCT 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
TODAY
NORTH WINDS AROUND 20 KNOTS. SEAS 8 TO 10 FEET,
OCCASIONALLY TO 13 FEET. WAVE DETAIL: NORTHEAST 9 FEET AT
13 SECONDS.
TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 7 TO 9 FEET,
OCCASIONALLY TO 11 FEET. WAVE DETAIL: NORTHEAST 9 FEET AT
12 SECONDS.
WEDNESDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 7 TO 8 FEET,
OCCASIONALLY TO 10 FEET. WAVE DETAIL: NORTHEAST 8 FEET AT
12 SECONDS.
WEDNESDAY NIGHT
NORTH WINDS 15 TO 20 KNOTS. SEAS 7 TO 8 FEET,
OCCASIONALLY TO 10 FEET. WAVE DETAIL: NORTHEAST 8 FEET AT
11 SECONDS.
THURSDAY AND THURSDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS.
SEAS 7 TO 8 FEET, OCCASIONALLY TO 10 FEET. WAVE DETAIL: NORTHEAST
8 FEET AT 13 SECONDS.
FRIDAY
NORTHEAST WINDS 20 TO 25 KNOTS, INCREASING TO 25 TO
30 KNOTS. SEAS 7 TO 8 FEET, OCCASIONALLY TO 10 FEET, BUILDING TO
9 TO 12 FEET, OCCASIONALLY TO 15 FEET. WAVE DETAIL: NORTHEAST
7 FEET AT 7 SECONDS AND NORTHEAST 7 FEET AT 12 SECONDS, BECOMING
NORTHEAST 12 FEET AT 8 SECONDS AND NORTHEAST 4 FEET AT
12 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON. A CHANCE
OF SHOWERS THROUGH THE NIGHT.
SATURDAY
NORTHEAST WINDS AROUND 30 KNOTS. SEAS 10 TO 12 FEET,
OCCASIONALLY TO 15 FEET, BUILDING TO 12 TO 14 FEET, OCCASIONALLY
TO 18 FEET. SHOWERS THROUGH THE DAY, THEN A CHANCE OF SHOWERS
THROUGH THE NIGHT.
AMZ470-210245-
WATERS FROM ALTAMAHA SOUND GA TO FERNANDINA BEACH FL FROM 20 TO
60 NM-
737 AM EDT TUE OCT 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
TODAY
NORTH WINDS 15 TO 20 KNOTS. SEAS 8 TO 10 FEET,
OCCASIONALLY TO 13 FEET. WAVE DETAIL: NORTHEAST 9 FEET AT
13 SECONDS.
TONIGHT
NORTHEAST WINDS AROUND 20 KNOTS. SEAS 7 TO 9 FEET,
OCCASIONALLY TO 11 FEET. WAVE DETAIL: NORTHEAST 9 FEET AT
12 SECONDS AND NORTHEAST 3 FEET AT 6 SECONDS.
WEDNESDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 8 FEET,
OCCASIONALLY TO 10 FEET. WAVE DETAIL: NORTHEAST 8 FEET AT
12 SECONDS AND NORTHEAST 4 FEET AT 6 SECONDS.
WEDNESDAY NIGHT
NORTH WINDS 15 TO 20 KNOTS. SEAS 6 TO 8 FEET,
OCCASIONALLY TO 10 FEET. WAVE DETAIL: NORTHEAST 8 FEET AT
11 SECONDS AND NORTHEAST 3 FEET AT 6 SECONDS.
THURSDAY AND THURSDAY NIGHT
NORTHEAST WINDS 10 TO 15 KNOTS.
SEAS 5 TO 7 FEET, OCCASIONALLY TO 9 FEET. WAVE DETAIL: NORTHEAST
7 FEET AT 12 SECONDS.
FRIDAY
NORTHEAST WINDS 25 TO 30 KNOTS. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET, BUILDING TO 9 TO 12 FEET, OCCASIONALLY TO
15 FEET. WAVE DETAIL: NORTHEAST 6 FEET AT 12 SECONDS AND
NORTHEAST 5 FEET AT 6 SECONDS, BECOMING NORTHEAST 12 FEET AT
8 SECONDS AND EAST 4 FEET AT 12 SECONDS. A SLIGHT CHANCE OF
SHOWERS IN THE EVENING. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SATURDAY
NORTHEAST WINDS AROUND 30 KNOTS. SEAS 11 TO 13 FEET,
OCCASIONALLY TO 17 FEET. SHOWERS LIKELY THROUGH THE DAY, THEN A
CHANCE OF SHOWERS THROUGH THE NIGHT.
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