AMZ400-130715-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
1209 PM EDT Sun Jul 12 2026
.SYNOPSIS...
A frontal boundary will sink southward towards the Georgia waters
tonight into Monday, with this feature stalling over the Georgia
waters on Tuesday before weakening later this week. Showers and
thunderstorms will impact our local waters earlier during the
afternoon hours on Monday and Tuesday, with a few strong storms
possible, especially for the waters north of St. Augustine. Coverage
of showers and thunderstorms will then decrease by Wednesday and
especially on Thursday and Friday as the frontal boundary
dissipates, with only isolated to widely scattered late afternoon
and early evening activity possible for the near shore waters as a
prevailing westerly flow continues during the overnight and morning
hours each day.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Jul 12, 2026 at 0000 UTC...
46 nautical miles east of Flagler Beach.
49 nautical miles east of Saint Augustine Beach.
60 nautical miles east southeast of Jacksonville Beach.
66 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-130715- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 1209 PM EDT Sun Jul 12 2026 REST OF TODAY Southwest winds 5 to 10 knots, becoming south 10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 3 seconds and southeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms late this morning, then a chance of showers and thunderstorms this afternoon. TONIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms in the evening. MONDAY Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. MONDAY NIGHT Southwest winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. TUESDAY Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. TUESDAY NIGHT Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds and east 2 feet at 9 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the evening. WEDNESDAY THROUGH THURSDAY West winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-130715- 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- 1209 PM EDT Sun Jul 12 2026 REST OF TODAY Southwest winds 5 to 10 knots, becoming south 10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 3 seconds and southeast 2 feet at 8 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms late this morning, then a chance of showers and thunderstorms this afternoon. TONIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms in the evening. MONDAY Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. MONDAY NIGHT Southwest winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. TUESDAY Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. TUESDAY NIGHT Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds and east 2 feet at 9 seconds. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the evening. WEDNESDAY THROUGH THURSDAY West winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$