AMZ400-231615-
 Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
 903 PM EDT Thu Oct 22 2026
 
 
 .SYNOPSIS...
 
 Through the weekend, high pressure ridge located to the north of the
 area will build while a trough of low pressure develops just south
 of the Bahamas. This will continue to support hazardous marine
 conditions across most of the area waters through tonight. As the
 pressure gradient tightens further on Friday, strengthening
 northeast winds and building seas are expected and will continue
 into the weekend and early next week. Northeast winds to Gale force
 may develop as early as Friday night and become likely for the
 weekend into early next week. A surge of moisture this weekend will
 also support elevated chances for moderate to heavy showers which
 lasts from Saturday through Monday.
 
 
 .GULF STREAM...
 
 The approximate location of the west wall of the Gulf Stream as of
 Oct 22, 2026 at 0000 UTC...
 
 58 nautical miles east of Flagler Beach.
 66 nautical miles east of Saint Augustine Beach.
 78 nautical miles east southeast of Jacksonville Beach.
 81 nautical miles east southeast of St Simons Island.
 
 This data derived from NCEP Global RTOFS model.
 
 
 $$




 
 AMZ450-452-454-231615-
 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-
 903 PM EDT Thu Oct 22 2026
 
 SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH
 SATURDAY EVENING
 

 REST OF TONIGHT
 Northeast winds 15 to 20 knots. Seas 4 to
 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at
 12 seconds. Intracoastal waters choppy.

 FRIDAY
 Northeast winds 15 to 20 knots, increasing to 20 to
 25 knots in the afternoon. Seas 5 to 7 feet, occasionally to
 9 feet. Wave Detail: Northeast 7 feet at 8 seconds. Intracoastal
 waters rough.

 FRIDAY NIGHT
 Northeast winds 25 to 30 knots. Seas 6 to 9 feet,
 occasionally to 11 feet. Wave Detail: Northeast 9 feet at
 7 seconds. Intracoastal waters very rough. Showers likely after
 midnight.

 SATURDAY
 Northeast winds 25 to 30 knots with gusts up to
 40 knots. Seas 8 to 10 feet, occasionally to 13 feet, building to
 9 to 12 feet, occasionally to 15 feet in the afternoon. Wave
 Detail: Northeast 9 feet at 8 seconds, becoming northeast 11 feet
 at 8 seconds. Intracoastal waters very rough. Showers. A slight
 chance of thunderstorms in the afternoon.

 SATURDAY NIGHT
 Northeast winds around 30 knots with gusts up
 to 40 knots. Seas 10 to 14 feet, occasionally to 18 feet. Wave
 Detail: Northeast 14 feet at 10 seconds. Intracoastal waters very
 rough. Showers with a slight chance of thunderstorms in the
 evening, then a chance of showers after midnight.

 SUNDAY
 Northeast winds 25 to 30 knots. Gusts up to 45 knots in
 the afternoon. Seas 10 to 14 feet, occasionally to 18 feet. Wave
 Detail: Northeast 14 feet at 10 seconds. Intracoastal waters very
 rough. A chance of showers in the morning, then showers likely in
 the afternoon.

 SUNDAY NIGHT
 Northeast winds around 30 knots with gusts up to
 45 knots. Seas 11 to 13 feet, occasionally to 17 feet.
 Intracoastal waters very rough. A chance of showers, mainly in
 the evening.

 MONDAY
 Northeast winds 25 to 30 knots. Seas 9 to 13 feet,
 occasionally to 17 feet. Intracoastal waters very rough. A chance
 of showers through the day, then a slight chance of showers in
 the evening.

 TUESDAY
 Northeast winds 25 to 30 knots, diminishing to 20 to
 25 knots. Seas 9 to 12 feet, occasionally to 15 feet, subsiding
 to 7 to 10 feet, occasionally to 13 feet. Intracoastal waters
 very rough. A slight chance of showers.
 
 Winds and waves higher in and near thunderstorms.
 
 $$