964
FZUS52 KJAX 200012
CWFJAX
COASTAL WATERS FORECAST FOR NORTHEAST FLORIDA/SOUTHEAST GEORGIA
NATIONAL WEATHER SERVICE JACKSONVILLE FL
812 PM EDT WED AUG 19 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.
AMZ400-201515-
SYNOPSIS FOR ALTAMAHA SOUND GA TO FLAGLER BEACH FL OUT TO 60 NM-
812 PM EDT WED AUG 19 2026
SYNOPSIS
A STALLED FRONTAL BOUNDARY WILL REMAIN POSITIONED NORTH OF THE
GEORGIA WATERS THROUGH THE NEXT SEVERAL DAYS. SCATTERED SHOWERS
AND THUNDERSTORMS WILL BE POSSIBLE THIS EVENING, AND ONCE AGAIN ON
THURSDAY AFTERNOON AND EVENING, WITH IMPACTS FOR THE NEAR SHORE
WATERS. COVERAGE OF MAINLY AFTERNOON AND EVENING SHOWERS AND
THUNDERSTORMS WILL THEN INCREASE FROM FRIDAY THROUGH THE UPCOMING
WEEKEND THROUGHOUT OUR LOCAL WATERS AS SOUTHWESTERLY WINDS
PREVAIL, WITH AFTERNOON SEA BREEZES DEVELOPING EACH DAY.
GULF STREAM
THE APPROXIMATE LOCATION OF THE WEST WALL OF THE GULF STREAM AS OF
AUG 19, 2026 AT 0000 UTC...
54 NAUTICAL MILES EAST OF FLAGLER BEACH.
62 NAUTICAL MILES EAST OF SAINT AUGUSTINE BEACH.
74 NAUTICAL MILES EAST SOUTHEAST OF JACKSONVILLE BEACH.
66 NAUTICAL MILES EAST SOUTHEAST OF ST SIMONS ISLAND.
THIS DATA DERIVED FROM NCEP GLOBAL RTOFS MODEL.
AMZ450-452-454-201515-
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-
812 PM EDT WED AUG 19 2026
REST OF TONIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND
2 FEET. WAVE DETAIL: EAST 2 FEET AT 9 SECONDS. INTRACOASTAL
WATERS LIGHT CHOP.
THURSDAY
SOUTHWEST WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST
10 TO 15 KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL:
SOUTHEAST 2 FEET AT 3 SECONDS AND EAST 2 FEET AT 9 SECONDS.
INTRACOASTAL WATERS A MODERATE CHOP. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE AFTERNOON.
THURSDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS, BECOMING SOUTHWEST
5 TO 10 KNOTS AFTER MIDNIGHT. SEAS 2 TO 3 FEET. WAVE DETAIL:
SOUTH 2 FEET AT 4 SECONDS. INTRACOASTAL WATERS A MODERATE CHOP.
FRIDAY
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST 10 TO
15 KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL:
SOUTHEAST 3 FEET AT 4 SECONDS. INTRACOASTAL WATERS A MODERATE
CHOP. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
WAVE DETAIL: SOUTHEAST 3 FEET AT 4 SECONDS. INTRACOASTAL WATERS A
MODERATE CHOP. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING.
SATURDAY AND SATURDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS.
SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS.
INTRACOASTAL WATERS A MODERATE CHOP. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
SUNDAY
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHWEST 10 TO
15 KNOTS. SEAS 2 TO 3 FEET. INTRACOASTAL WATERS A MODERATE CHOP.
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN
A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
MONDAY
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
INTRACOASTAL WATERS A MODERATE CHOP. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS THROUGH THE NIGHT. A SLIGHT CHANCE OF SHOWERS
AFTER MIDNIGHT.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
AMZ470-472-474-201515-
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-
812 PM EDT WED AUG 19 2026
REST OF TONIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS 2 TO
3 FEET. WAVE DETAIL: EAST 2 FEET AT 9 SECONDS.
THURSDAY
WEST WINDS 5 TO 10 KNOTS, BECOMING SOUTH IN THE
AFTERNOON. SEAS AROUND 2 FEET. WAVE DETAIL: SOUTH 2 FEET AT
3 SECONDS AND EAST 2 FEET AT 9 SECONDS.
THURSDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS, BECOMING SOUTHWEST
5 TO 10 KNOTS AFTER MIDNIGHT. SEAS 2 TO 3 FEET. WAVE DETAIL:
SOUTH 2 FEET AT 4 SECONDS AND EAST 2 FEET AT 8 SECONDS.
FRIDAY
SOUTHWEST WINDS 5 TO 10 KNOTS, BECOMING SOUTH 10 TO
15 KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTH
2 FEET AT 4 SECONDS AND EAST 2 FEET AT 8 SECONDS.
FRIDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
WAVE DETAIL: SOUTH 3 FEET AT 4 SECONDS AND EAST 2 FEET AT
9 SECONDS. A CHANCE OF SHOWERS AND THUNDERSTORMS, MAINLY IN THE
EVENING.
SATURDAY AND SATURDAY NIGHT
SOUTHWEST WINDS 10 TO 15 KNOTS.
SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTH 3 FEET AT 4 SECONDS AND EAST
2 FEET AT 9 SECONDS. A CHANCE OF SHOWERS AND THUNDERSTORMS.
SUNDAY
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH THE NIGHT. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
MONDAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
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