AMZ400-182100-
 Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
 224 AM EDT Thu Jun 18 2026
 
 
 .SYNOPSIS...
 
 Persistent offshore flow continues across the waters into the
 weekend. Offshore winds will become quite breezy this afternoon,
 possibly near 20 knots in the outer coastal waters. A weak front
 trailing a weak low pressure to the north will stall across the
 Georgia's coastal waters Friday night. Numerous showers and
 afternoon thunderstorms are expected to develop along front as it
 dissipates over the weekend. Weaker offshore flow is likely through
 the first half of next week as another front approaches and likely
 stalls just north of the waters.
 
 
 .GULF STREAM...
 
 The approximate location of the west wall of the Gulf Stream as of
 Jun 17, 2026 at 0000 UTC...
 
 46 nautical miles east of Flagler Beach.
 53 nautical miles east of Saint Augustine Beach.
 64 nautical miles east southeast of Jacksonville Beach.
 71 nautical miles east southeast of St Simons Island.
 
 This data derived from NCEP Global RTOFS model.
 
 
 $$




 
 AMZ450-452-182100-
 Coastal waters from Altamaha Sound to Fernandina Beach FL out
 20 NM-
 Coastal waters from Fernandina Beach to St. Augustine FL out
 20 NM-
 224 AM EDT Thu Jun 18 2026
 
 SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 2 PM EDT THIS
 AFTERNOON THROUGH FRIDAY MORNING
 

 REST OF TONIGHT
 Southwest winds 10 to 15 knots. Seas around
 2 feet. Wave Detail: South 2 feet at 4 seconds. Intracoastal
 waters a moderate chop.

 THURSDAY
 South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
 Detail: South 3 feet at 5 seconds and southeast 2 feet at
 8 seconds. Intracoastal waters a moderate chop. Showers likely
 with a chance of thunderstorms in the afternoon.

 THURSDAY NIGHT
 South winds 10 to 15 knots, becoming southwest
 15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail:
 Southeast 3 feet at 6 seconds. Intracoastal waters choppy. A
 chance of showers with a slight chance of thunderstorms in the
 evening, then a slight chance of showers after midnight.

 FRIDAY
 Southwest winds 15 to 20 knots. Seas 2 to 3 feet. Wave
 Detail: Southwest 3 feet at 5 seconds. Intracoastal waters
 choppy. A chance of showers. A slight chance of thunderstorms in
 the morning, then a chance of thunderstorms in the afternoon.

 FRIDAY NIGHT
 West winds 10 to 15 knots. Seas 2 to 3 feet. Wave
 Detail: West 2 feet at 3 seconds and southeast 2 feet at
 7 seconds. Intracoastal waters a moderate chop. A chance of
 showers and thunderstorms.

 SATURDAY
 West winds 5 to 10 knots. Seas around 2 feet.
 Intracoastal waters light chop. A chance of showers and
 thunderstorms in the morning, then showers with thunderstorms
 likely in the afternoon.

 SATURDAY NIGHT
 West winds around 5 knots. Seas around 2 feet.
 Intracoastal waters smooth. A slight chance of showers and
 thunderstorms in the evening.

 SUNDAY
 Southwest winds 5 to 10 knots. Waves 1 foot or less,
 then around 2 feet. Intracoastal waters light chop. A chance of
 showers and thunderstorms in the afternoon. A slight chance of
 showers and thunderstorms in the evening.

 MONDAY
 Southwest winds 10 to 15 knots. Seas around 2 feet.
 Intracoastal waters a moderate chop.
 
 Winds and waves higher in and near thunderstorms.
 
 $$