Hazardous marine condition(s):
Small Craft Advisory
AMZ400-200330-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
822 AM EDT Sun Apr 19 2026
.SYNOPSIS...
A cold front will move through the waters during the afternoon hours
today. The front will bring a rapid wind shift to the north this
afternoon and evening, then a surge of northeast winds following the
frontal passage through Monday night. Small Craft Advisories are in
place from tonight and into Monday Night. Winds and waves subside
Monday night as high pressure builds into the area for mid-week.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Apr 18, 2026 at 0000 UTC...
50 nautical miles east of Flagler Beach.
58 nautical miles east of Saint Augustine Beach.
70 nautical miles east southeast of Jacksonville Beach.
71 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ454-200330- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 822 AM EDT Sun Apr 19 2026 SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY EVENING REST OF TODAY West winds 5 to 10 knots, becoming northeast 10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters a moderate chop. TONIGHT Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 5 to 6 feet, occasionally to 8 feet after midnight. Wave Detail: Northeast 5 feet at 6 seconds, becoming northeast 6 feet at 6 seconds. Intracoastal waters rough. MONDAY Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7 seconds. Intracoastal waters rough. MONDAY NIGHT Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds. Intracoastal waters choppy. TUESDAY AND TUESDAY NIGHT East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 8 seconds. Intracoastal waters a moderate chop. WEDNESDAY THROUGH THURSDAY Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. $$
AMZ454-200330- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 822 AM EDT Sun Apr 19 2026 SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY EVENING REST OF TODAY West winds 5 to 10 knots, becoming northeast 10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters a moderate chop. TONIGHT Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 5 to 6 feet, occasionally to 8 feet after midnight. Wave Detail: Northeast 5 feet at 6 seconds, becoming northeast 6 feet at 6 seconds. Intracoastal waters rough. MONDAY Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7 seconds. Intracoastal waters rough. MONDAY NIGHT Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 6 feet at 8 seconds. Intracoastal waters choppy. TUESDAY AND TUESDAY NIGHT East winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at 8 seconds. Intracoastal waters a moderate chop. WEDNESDAY THROUGH THURSDAY Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 7 seconds and southeast 2 feet at 4 seconds. Intracoastal waters a moderate chop. $$