188
FZUS52 KJAX 191420
CWFJAX
COASTAL WATERS FORECAST FOR NORTHEAST FLORIDA/SOUTHEAST GEORGIA
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1020 AM EDT TUE AUG 19 2025
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.
AMZ400-200500-
SYNOPSIS FOR ALTAMAHA SOUND GA TO FLAGLER BEACH FL OUT TO 60 NM-
1020 AM EDT TUE AUG 19 2025
SYNOPSIS
HIGH PRESSURE ACROSS NEW ENGLAND EXTENDS SOUTH ACROSS NORTH GEORGIA
TODAY AS HURRICANE ERIN TRACKS NORTHWEST TO NORTH, REMAINING EAST OF
THE BAHAMAS. THIS PATTERN WILL BRING STRENGTHENING NORTHEAST WINDS
OVER THE LOCAL WATERS TODAY AS SWELLS CONTINUE TO BUILD. ERIN TRACKS
NORTH TONIGHT AND THEN NORTHEAST INTO LATE WEDNESDAY REMAINING
OFFSHORE OF THE NORTH CAROLINA COAST. AN EXTENDED PERIOD OF SMALL
CRAFT CONDITIONS WILL IMPACT THE LOCAL WATERS THROUGH SATURDAY DUE
TO LINGERING SWELLS. A FRONT WILL STALL ACROSS THE REGION FRIDAY
INTO THE WEEKEND BRINGING AN INCREASE IN SHOWER AND THUNDERSTORM
ACTIVITY.
GULF STREAM
THE APPROXIMATE LOCATION OF THE WEST WALL OF THE GULF STREAM AS OF
AUG 16, 2025 AT 1200 UTC...
57 NAUTICAL MILES EAST OF FLAGLER BEACH.
63 NAUTICAL MILES EAST NORTHEAST OF SAINT AUGUSTINE BEACH.
68 NAUTICAL MILES EAST OF JACKSONVILLE BEACH.
75 NAUTICAL MILES EAST SOUTHEAST OF ST SIMONS ISLAND.
THIS DATA COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.
AMZ450-452-454-200500-
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-
1020 AM EDT TUE AUG 19 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT
REST OF TODAY
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 5 TO
7 FEET, OCCASIONALLY TO 9 FEET. WAVE DETAIL: EAST 7 FEET AT
15 SECONDS AND NORTHEAST 2 FEET AT 7 SECONDS. INTRACOASTAL WATERS
A MODERATE CHOP. A SLIGHT CHANCE OF THUNDERSTORMS. A CHANCE OF
SHOWERS.
TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 9 FEET,
OCCASIONALLY TO 11 FEET. WAVE DETAIL: EAST 8 FEET AT 16 SECONDS
AND NORTHEAST 3 FEET AT 6 SECONDS. INTRACOASTAL WATERS CHOPPY. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
WEDNESDAY
NORTH WINDS 15 TO 20 KNOTS. SEAS 7 TO 9 FEET,
OCCASIONALLY TO 11 FEET, BUILDING TO 8 TO 11 FEET, OCCASIONALLY
TO 14 FEET IN THE AFTERNOON. WAVE DETAIL: EAST 9 FEET AT
15 SECONDS AND NORTHEAST 5 FEET AT 6 SECONDS. INTRACOASTAL WATERS
CHOPPY. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN
THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
WEDNESDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS, BECOMING WEST
AFTER MIDNIGHT. SEAS 8 TO 11 FEET, OCCASIONALLY TO 14 FEET. WAVE
DETAIL: EAST 9 FEET AT 15 SECONDS AND NORTHEAST 4 FEET AT
7 SECONDS. INTRACOASTAL WATERS A MODERATE CHOP. A SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
THURSDAY
NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING SOUTHEAST
5 TO 10 KNOTS IN THE AFTERNOON. SEAS 6 TO 8 FEET, OCCASIONALLY TO
10 FEET. WAVE DETAIL: EAST 8 FEET AT 14 SECONDS AND NORTH 2 FEET
AT 9 SECONDS. 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.
THURSDAY NIGHT
SOUTHWEST WINDS AROUND 10 KNOTS, BECOMING WEST
AFTER MIDNIGHT. SEAS 5 TO 6 FEET, OCCASIONALLY TO 8 FEET. WAVE
DETAIL: EAST 6 FEET AT 13 SECONDS AND SOUTHEAST 2 FEET AT
6 SECONDS. INTRACOASTAL WATERS LIGHT CHOP. A CHANCE OF SHOWERS. A
CHANCE OF THUNDERSTORMS, MAINLY IN THE EVENING.
FRIDAY
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTH. SEAS 4 TO
6 FEET, OCCASIONALLY TO 8 FEET. INTRACOASTAL WATERS LIGHT CHOP. A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN
THUNDERSTORMS LIKELY IN THE AFTERNOON. SHOWERS LIKELY THROUGH THE
NIGHT. A CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
SATURDAY
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING SOUTHWEST.
SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET. INTRACOASTAL WATERS
LIGHT CHOP. A CHANCE OF THUNDERSTORMS IN THE MORNING. SHOWERS.
THUNDERSTORMS LIKELY IN THE AFTERNOON, THEN A CHANCE OF
THUNDERSTORMS IN THE EVENING. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
AMZ470-472-474-200500-
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-
1020 AM EDT TUE AUG 19 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
REST OF TODAY
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 6 TO
9 FEET, OCCASIONALLY TO 11 FEET. WAVE DETAIL: EAST 8 FEET AT
15 SECONDS AND NORTHEAST 4 FEET AT 6 SECONDS. A CHANCE OF
SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS EARLY THIS MORNING,
THEN A CHANCE OF THUNDERSTORMS THIS AFTERNOON.
TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 9 TO 12 FEET,
OCCASIONALLY TO 15 FEET. WAVE DETAIL: SOUTHEAST 10 FEET AT
16 SECONDS AND NORTHEAST 4 FEET AT 6 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
WEDNESDAY
NORTH WINDS 15 TO 20 KNOTS. SEAS 10 TO 14 FEET,
OCCASIONALLY TO 18 FEET. WAVE DETAIL: EAST 12 FEET AT 15 SECONDS
AND NORTHEAST 6 FEET AT 7 SECONDS. A CHANCE OF SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
WEDNESDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS, BECOMING WEST
AFTER MIDNIGHT. SEAS 10 TO 14 FEET, OCCASIONALLY TO 18 FEET,
SUBSIDING TO 9 TO 12 FEET, OCCASIONALLY TO 15 FEET AFTER
MIDNIGHT. WAVE DETAIL: EAST 12 FEET AT 15 SECONDS AND NORTHEAST
5 FEET AT 8 SECONDS, BECOMING EAST 11 FEET AT 15 SECONDS AND
NORTHEAST 4 FEET AT 9 SECONDS. A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS, MAINLY IN THE EVENING.
THURSDAY
NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING EAST 5 TO
10 KNOTS IN THE AFTERNOON. SEAS 7 TO 10 FEET, OCCASIONALLY TO
13 FEET, SUBSIDING TO 7 TO 8 FEET, OCCASIONALLY TO 10 FEET IN THE
AFTERNOON. WAVE DETAIL: EAST 9 FEET AT 13 SECONDS AND NORTH
3 FEET AT 9 SECONDS, BECOMING EAST 8 FEET AT 13 SECONDS AND
SOUTHEAST 2 FEET AT 6 SECONDS. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
THURSDAY NIGHT
SOUTHWEST WINDS AROUND 10 KNOTS, BECOMING WEST
AFTER MIDNIGHT. SEAS 6 TO 9 FEET, OCCASIONALLY TO 11 FEET. WAVE
DETAIL: NORTHEAST 8 FEET AT 13 SECONDS AND SOUTHEAST 2 FEET AT
6 SECONDS. A CHANCE OF SHOWERS AND THUNDERSTORMS.
FRIDAY
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST. SEAS 6 TO
9 FEET, OCCASIONALLY TO 11 FEET, SUBSIDING TO 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET. A CHANCE OF THUNDERSTORMS. SHOWERS.
SATURDAY
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING SOUTHWEST.
SEAS 5 TO 7 FEET, OCCASIONALLY TO 9 FEET. A CHANCE OF
THUNDERSTORMS. SHOWERS.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
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