Hazardous marine condition(s):
Small Craft Advisory
Gale Warning
AMZ400-192100-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
224 AM EDT Mon Oct 19 2026
.SYNOPSIS...
A tight pressure gradient between high pressure over the eastern
states and a strong low pressure well offshore over the western
Atlantic will continue to support hazardous marine conditions across
the area waters this week. Near gale force wind gusts and rough seas
up 10 to 15 feet will persist today before easing slowly through mid
week as the low offshore moves slowly northward. While Gale force
conditions are ending early this morning, small craft advisory level
conditions will continue into mid to late week.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Oct 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.
80 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ452-454-472-474-192100- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM- 224 AM EDT Mon Oct 19 2026 GALE WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH LATE WEDNESDAY NIGHT REST OF TONIGHT Northeast winds around 30 knots. Seas 12 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 12 seconds and northeast 12 feet at 9 seconds. Intracoastal waters very rough. A slight chance of showers. MONDAY North winds 25 to 30 knots. Seas 10 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 12 seconds and northeast 8 feet at 9 seconds. Intracoastal waters very rough. MONDAY NIGHT Northeast winds 20 to 25 knots, becoming north 15 to 20 knots after midnight. Seas 9 to 12 feet, occasionally to 15 feet, subsiding to 8 to 10 feet, occasionally to 13 feet after midnight. Wave Detail: Northeast 11 feet at 12 seconds, becoming northeast 10 feet at 13 seconds. Intracoastal waters rough. TUESDAY North winds 15 to 20 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: Northeast 9 feet at 13 seconds. Intracoastal waters choppy. TUESDAY NIGHT THROUGH WEDNESDAY NIGHT North winds 15 to 20 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 13 seconds and northeast 5 feet at 7 seconds. Intracoastal waters choppy. THURSDAY Northeast winds 15 to 20 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at 12 seconds. Intracoastal waters choppy. FRIDAY Northeast winds 25 to 30 knots. Seas 6 to 8 feet, occasionally to 10 feet, building to 8 to 10 feet, occasionally to 13 feet. Intracoastal waters very rough. A chance of showers. $$
AMZ452-454-472-474-192100- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 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- 224 AM EDT Mon Oct 19 2026 GALE WARNING IN EFFECT UNTIL 8 AM EDT THIS MORNING SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH LATE WEDNESDAY NIGHT REST OF TONIGHT Northeast winds around 30 knots. Seas 12 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 12 seconds and northeast 12 feet at 9 seconds. Intracoastal waters very rough. A slight chance of showers. MONDAY North winds 25 to 30 knots. Seas 10 to 14 feet, occasionally to 18 feet. Wave Detail: Northeast 14 feet at 12 seconds and northeast 8 feet at 9 seconds. Intracoastal waters very rough. MONDAY NIGHT Northeast winds 20 to 25 knots, becoming north 15 to 20 knots after midnight. Seas 9 to 12 feet, occasionally to 15 feet, subsiding to 8 to 10 feet, occasionally to 13 feet after midnight. Wave Detail: Northeast 11 feet at 12 seconds, becoming northeast 10 feet at 13 seconds. Intracoastal waters rough. TUESDAY North winds 15 to 20 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: Northeast 9 feet at 13 seconds. Intracoastal waters choppy. TUESDAY NIGHT THROUGH WEDNESDAY NIGHT North winds 15 to 20 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 13 seconds and northeast 5 feet at 7 seconds. Intracoastal waters choppy. THURSDAY Northeast winds 15 to 20 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at 12 seconds. Intracoastal waters choppy. FRIDAY Northeast winds 25 to 30 knots. Seas 6 to 8 feet, occasionally to 10 feet, building to 8 to 10 feet, occasionally to 13 feet. Intracoastal waters very rough. A chance of showers. $$