Hazardous marine condition(s):
Severe Thunderstorm Watch
AMZ400-301000-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
249 PM EDT Wed Jul 29 2026
.SYNOPSIS...
Active weather pattern develops today with a surge of southwest
winds to Small Craft Exercise Caution levels which will continue
through tonight. A frontal boundary will then sink into the Deep
South late this week, with this feature becoming stationary during
the weekend. Strong to severe thunderstorms will be possible well in
advance of this front this afternoon and evening, with stronger
storms potentially producing damaging wind gusts, waterspouts,
frequent lightning strikes, and torrential downpours. Scattered to
numerous thunderstorms will continue across the northeast Florida
waters on Thursday and Friday, with less coverage currently forecast
for the Georgia waters. Waves of showers and thunderstorms will then
overspread all of our local waters during the upcoming weekend.
Outside of expected thunderstorm activity, southwesterly winds will
prevail with Caution conditions likely through the upcoming weekend.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Jul 29, 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.
66 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ452-454-301000- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 249 PM EDT Wed Jul 29 2026 SEVERE THUNDERSTORM WATCH 532 IN EFFECT UNTIL 10 PM EDT THIS EVENING SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY EVENING TONIGHT West winds 15 to 20 knots. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at 4 seconds. Intracoastal waters choppy. A chance of showers. A chance of thunderstorms, mainly this evening. THURSDAY Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. THURSDAY NIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers. A chance of thunderstorms, mainly in the evening. FRIDAY Southwest winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds. Intracoastal waters light chop. A chance of thunderstorms. A chance of showers in the morning, then showers in the afternoon. FRIDAY NIGHT Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 3 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. SATURDAY Southwest winds 5 to 10 knots, becoming south 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 3 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. SATURDAY NIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers and thunderstorms, mainly in the evening. SUNDAY Southwest winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. A slight chance of showers and thunderstorms through the night. MONDAY South winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. A slight chance of thunderstorms in the evening. A slight chance of showers through the night. Winds and waves higher in and near thunderstorms. $$
AMZ452-454-301000- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 249 PM EDT Wed Jul 29 2026 SEVERE THUNDERSTORM WATCH 532 IN EFFECT UNTIL 10 PM EDT THIS EVENING SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH THURSDAY EVENING TONIGHT West winds 15 to 20 knots. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at 4 seconds. Intracoastal waters choppy. A chance of showers. A chance of thunderstorms, mainly this evening. THURSDAY Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. THURSDAY NIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at 4 seconds. Intracoastal waters a moderate chop. A chance of showers. A chance of thunderstorms, mainly in the evening. FRIDAY Southwest winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds. Intracoastal waters light chop. A chance of thunderstorms. A chance of showers in the morning, then showers in the afternoon. FRIDAY NIGHT Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 3 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. SATURDAY Southwest winds 5 to 10 knots, becoming south 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 3 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. SATURDAY NIGHT Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers and thunderstorms, mainly in the evening. SUNDAY Southwest winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. A slight chance of showers and thunderstorms through the night. MONDAY South winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. A slight chance of thunderstorms in the evening. A slight chance of showers through the night. Winds and waves higher in and near thunderstorms. $$