AMZ400-302100-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
225 AM EDT Tue Jun 30 2026
.SYNOPSIS...
A backdoor front will push into the southeast Georgia waters this
morning and shift south of the northeast Florida waters later this
afternoon. A surge of northeasterly winds develop in the wake of the
front and continues into Wednesday. The onshore flow will keep
thunderstorm activity mainly on land through the middle of the week.
The front lifts back northward into the area as remnant inverted
trough on Thursday resulting in an increase in rain and storm
chances. As surface high pressure builds to the south, a weak
southwesterly flow will develop into the Independence Day holiday
weekend and increase chances for thunderstorms.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Jun 29, 2026 at 0000 UTC...
46 nautical miles east of Flagler Beach.
53 nautical miles east of Saint Augustine Beach.
60 nautical miles east southeast of Jacksonville Beach.
68 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ472-474-302100-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
225 AM EDT Tue Jun 30 2026
REST OF TONIGHT
North winds around 5 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 2 feet at 9 seconds. A slight chance of
showers and thunderstorms.
TUESDAY
Northeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Wave Detail: Northeast 4 feet at
7 seconds and northeast 2 feet at 3 seconds.
TUESDAY NIGHT
Northeast winds 10 to 15 knots. Seas 3 to
4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at
7 seconds. A slight chance of showers and thunderstorms after
midnight.
WEDNESDAY
Northeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Northeast 5 feet at
8 seconds. A chance of showers in the morning, then a slight
chance of showers and thunderstorms in the afternoon.
WEDNESDAY NIGHT AND THURSDAY
Northeast winds 10 to 15 knots.
Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast
5 feet at 8 seconds. A chance of showers with a slight chance of
thunderstorms.
THURSDAY NIGHT
East winds 5 to 10 knots, becoming south after
midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 8 seconds. A slight chance of thunderstorms in the
evening. A slight chance of showers.
FRIDAY
South winds 5 to 10 knots. Seas around 3 feet. A slight
chance of showers and thunderstorms in the morning. A slight
chance of showers in the evening. A slight chance of
thunderstorms through the night. A chance of showers after
midnight.
SATURDAY
South winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. A slight chance of showers and
thunderstorms.
Winds and seas higher in and near thunderstorms.
$$
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