NWS Marine Forecast



 Hazardous marine condition(s):
 Small Craft Advisory
   AMZ400-200800-  Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-  139 PM 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 19, 2026 at 0000 UTC...    50 nautical miles east of Flagler Beach.  62 nautical miles east of Saint Augustine Beach.  74 nautical miles east southeast of Jacksonville Beach.  80 nautical miles east southeast of St Simons Island.    This data derived from NCEP Global RTOFS model.      $$
   AMZ454-200800-  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-  139 PM EDT Sun Apr 19 2026    SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EDT THIS EVENING  THROUGH MONDAY EVENING    REST OF TODAY  North winds around 5 knots, becoming northeast  10 to 15 knots this afternoon. Seas around 2 feet. Wave Detail:  East 2 feet at 8 seconds. Intracoastal waters a moderate chop.  TONIGHT  North winds 15 to 20 knots, becoming northeast 20 to  25 knots after midnight. Seas 3 to 5 feet, occasionally to  6 feet, building to 5 to 7 feet, occasionally to 9 feet after  midnight. Wave Detail: Northeast 5 feet at 6 seconds, becoming  northeast 6 feet at 6 seconds. Intracoastal waters rough.  MONDAY  Northeast winds 20 to 25 knots. Seas 6 to 7 feet,  occasionally to 9 feet. Wave Detail: Northeast 7 feet at  7 seconds. Intracoastal waters rough.  MONDAY NIGHT  Northeast winds 10 to 15 knots. Seas 4 to 6 feet,  occasionally to 8 feet. Wave Detail: Northeast 6 feet at  8 seconds. Intracoastal waters a moderate chop.  TUESDAY AND TUESDAY NIGHT  East winds 10 to 15 knots. Seas 3 to  5 feet, occasionally to 6 feet. Wave Detail: Northeast 5 feet at  8 seconds. Intracoastal waters a moderate chop.  WEDNESDAY THROUGH THURSDAY  South winds 10 to 15 knots. Seas  2 to 3 feet. Wave Detail: Northeast 3 feet at 7 seconds and  southeast 2 feet at 4 seconds. Intracoastal waters a moderate  chop.    $$