652
FZUS52 KJAX 190011 AAA
CWFJAX
COASTAL WATERS FORECAST FOR NORTHEAST FLORIDA/SOUTHEAST GEORGIA
NATIONAL WEATHER SERVICE JACKSONVILLE FL
810 PM EDT MON AUG 18 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.
AMZ400-191445-
SYNOPSIS FOR ALTAMAHA SOUND GA TO FLAGLER BEACH FL OUT TO 60 NM-
810 PM EDT MON AUG 18 2025
SYNOPSIS
WEAK TROUGHING SITUATED OVER THE NORTHEAST FLORIDA WATERS WILL SHIFT
SOUTHWARD TONIGHT AS HIGH PRESSURE BUILDS OVER NEW ENGLAND AND
WEDGES DOWN THE SOUTHEASTERN SEABOARD. MEANWHILE, MAJOR HURRICANE
ERIN MOVING NORTHWEST TONIGHT AND WILL TRACK NORTH ON TUESDAY,
REMAINING WELL TO THE EAST OF THE GULF STREAM ADJACENT TO OUR LOCAL
WATERS. POWERFUL OCEAN SWELLS WILL CONTINUE MOVING INTO THE LOCAL
WATERS THROUGH MID WEEK, WITH SMALL CRAFT ADVISORY CONDITIONS
BEGINNING TONIGHT. BREEZY ONSHORE WINDS AND ELEVATED, ROUGH SEAS ARE
EXPECTED ON TUESDAY AND WEDNESDAY. WINDS WILL SHIFT TO NORTHWEST AND
THEN WEST ON WEDNESDAY NIGHT AND THURSDAY AS ERIN TURNS NORTH-
NORTHEASTWARD OFF THE U.S. EASTERN SEABOARD. SHOWERS AND
THUNDERSTORMS WILL LIKELY INCREASE IN COVERAGE ON FRIDAY AS A
FRONTAL BOUNDARY STALLS OVER OUR REGION.
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.
AMZ450-452-454-191445-
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-
810 PM EDT MON AUG 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
THROUGH LATE THURSDAY NIGHT...
REST OF TONIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET,
BUILDING TO 4 TO 7 FEET. WAVE DETAIL: EAST 5 FEET AT 13 SECONDS
AND NORTHEAST 3 FEET AT 7 SECONDS. INTRACOASTAL WATERS A MODERATE
CHOP. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY.
TUESDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 8 FEET,
OCCASIONALLY TO 10 FEET. WAVE DETAIL: EAST 7 FEET AT 15 SECONDS
AND NORTHEAST 4 FEET AT 6 SECONDS. INTRACOASTAL WATERS CHOPPY. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 7 TO
10 FEET, OCCASIONALLY TO 13 FEET. WAVE DETAIL: EAST 9 FEET AT
16 SECONDS AND NORTHEAST 4 FEET AT 6 SECONDS. INTRACOASTAL WATERS
CHOPPY. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS.
WEDNESDAY
NORTH WINDS 15 TO 20 KNOTS. SEAS 9 TO 11 FEET,
OCCASIONALLY TO 14 FEET. WAVE DETAIL: EAST 10 FEET AT 15 SECONDS
AND NORTHEAST 5 FEET AT 6 SECONDS. INTRACOASTAL WATERS CHOPPY.
SHOWERS LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
WEDNESDAY NIGHT
NORTH WINDS AROUND 10 KNOTS, BECOMING
NORTHWEST AFTER MIDNIGHT. SEAS 8 TO 11 FEET, OCCASIONALLY TO
14 FEET. WAVE DETAIL: EAST 10 FEET AT 15 SECONDS AND NORTHEAST
4 FEET AT 7 SECONDS. INTRACOASTAL WATERS LIGHT CHOP. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS.
THURSDAY AND THURSDAY NIGHT
SOUTH WINDS 5 TO 10 KNOTS. SEAS
6 TO 9 FEET, OCCASIONALLY TO 11 FEET. WAVE DETAIL: EAST 8 FEET AT
14 SECONDS AND NORTHEAST 2 FEET AT 8 SECONDS. INTRACOASTAL WATERS
LIGHT CHOP. A CHANCE OF SHOWERS AND THUNDERSTORMS.
FRIDAY
EAST WINDS 5 TO 10 KNOTS. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET. INTRACOASTAL WATERS LIGHT CHOP. A CHANCE
OF SHOWERS IN THE MORNING. A CHANCE OF THUNDERSTORMS. SHOWERS
LIKELY IN THE AFTERNOON, THEN A CHANCE OF SHOWERS THROUGH THE
NIGHT. A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
SATURDAY
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST. SEAS
4 TO 6 FEET, OCCASIONALLY TO 8 FEET, SUBSIDING TO 3 TO 4 FEET,
OCCASIONALLY TO 5 FEET AFTER MIDNIGHT. INTRACOASTAL WATERS LIGHT
CHOP. SHOWERS AND THUNDERSTORMS LIKELY.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
AMZ470-472-474-191445-
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-
810 PM EDT MON AUG 18 2025
..SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
REST OF TONIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 4 TO 5 FEET,
OCCASIONALLY TO 6 FEET, BUILDING TO 5 TO 8 FEET, OCCASIONALLY TO
10 FEET. WAVE DETAIL: EAST 4 FEET AT 14 SECONDS AND NORTHEAST
3 FEET AT 7 SECONDS, BECOMING EAST 7 FEET AT 16 SECONDS AND
NORTHEAST 4 FEET AT 7 SECONDS. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY. A SLIGHT CHANCE OF THUNDERSTORMS THIS
EVENING. A SLIGHT CHANCE OF SHOWERS.
TUESDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 7 TO 10 FEET,
OCCASIONALLY TO 13 FEET. WAVE DETAIL: EAST 9 FEET AT 15 SECONDS
AND NORTHEAST 5 FEET AT 6 SECONDS. A SLIGHT CHANCE OF
THUNDERSTORMS. A SLIGHT CHANCE OF SHOWERS IN THE MORNING, THEN A
CHANCE OF SHOWERS IN THE AFTERNOON.
TUESDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 9 TO
13 FEET, OCCASIONALLY TO 17 FEET. WAVE DETAIL: SOUTHEAST 11 FEET
AT 16 SECONDS AND NORTHEAST 5 FEET AT 7 SECONDS. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING,
THEN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT.
WEDNESDAY
NORTH WINDS 15 TO 20 KNOTS. SEAS 11 TO 14 FEET,
OCCASIONALLY TO 18 FEET. WAVE DETAIL: EAST 12 FEET AT 15 SECONDS
AND NORTH 5 FEET AT 7 SECONDS. A CHANCE OF THUNDERSTORMS.
SHOWERS, MAINLY IN THE MORNING.
WEDNESDAY NIGHT
NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 9 TO
13 FEET, OCCASIONALLY TO 17 FEET. WAVE DETAIL: EAST 11 FEET AT
15 SECONDS AND NORTHEAST 5 FEET AT 8 SECONDS. A CHANCE OF
SHOWERS. A CHANCE OF THUNDERSTORMS, MAINLY IN THE EVENING.
THURSDAY
NORTHWEST WINDS 10 TO 15 KNOTS, BECOMING NORTHEAST
5 TO 10 KNOTS IN THE AFTERNOON. SEAS 8 TO 11 FEET, OCCASIONALLY
TO 14 FEET. WAVE DETAIL: EAST 9 FEET AT 14 SECONDS AND NORTH
3 FEET AT 8 SECONDS. A CHANCE OF SHOWERS AND THUNDERSTORMS.
THURSDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING
SOUTHWEST AFTER MIDNIGHT. SEAS 7 TO 10 FEET, OCCASIONALLY TO
13 FEET. A CHANCE OF SHOWERS AND THUNDERSTORMS.
FRIDAY
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST. SEAS 6 TO
9 FEET, OCCASIONALLY TO 11 FEET. A CHANCE OF THUNDERSTORMS. A
CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY.
SATURDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET. SHOWERS LIKELY WITH A CHANCE OF
THUNDERSTORMS.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
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