AMZ400-020000-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
456 AM EDT Fri May 1 2026
.SYNOPSIS...
A frontal boundary will stall across the northeast Florida waters
today. Breezy onshore winds will develop this morning across the
Georgia waters, with these winds then building southward across
the northeast Florida waters this afternoon. Scattered showers and
possibly a few thunderstorms will be possible near and north of
this stalled front through this evening, mainly over the Georgia
waters. The front will then lift northward as a warm front tonight
as a wave of low pressure develops along the northern Gulf coast.
Southwesterly winds will strengthen on Saturday morning as this
developing low pressure center approaches our local waters from
the west. Widespread showers and thunderstorms will impact our
local waters on Saturday and Saturday evening, with strong to
severe storms possible. Stronger storms on Saturday and Saturday
evening will be capable of producing strong wind gusts, frequent
lightning strikes, and possibly a few waterspouts.
Small Craft Advisory conditions will likely develop late Saturday
afternoon or evening in the immediate wake of the cold frontal
passage, as winds abruptly shift to northwesterly. The front will
shift south of our area on Saturday night, with gusty winds
shifting to northerly after midnight. Breezy northeast winds are
then expected on Sunday as high pressure builds into the
southeastern states, with diminishing winds and seas early next
week as the high pressure quickly moves offshore of the
southeastern seaboard.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Apr 30, 2026 at 0000 UTC...
67 nautical miles east of Flagler Beach.
70 nautical miles east of Saint Augustine Beach.
88 nautical miles east southeast of Jacksonville Beach.
89 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-454-020000- 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- 456 AM EDT Fri May 1 2026 TODAY Northwest winds 5 to 10 knots early, becoming northeast and increasing to around 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail: North 2 feet at 3 seconds and east 2 feet at 10 seconds. Intracoastal waters becoming a moderate chop. A chance of showers with a slight chance of thunderstorms, mainly this afternoon. TONIGHT Northeast winds 10 to 15 knots, becoming southwest after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 8 seconds. Intracoastal waters a light chop. A chance of showers with a slight chance of thunderstorms. SATURDAY Southwest winds increasing to 15 to 20 knots, becoming northwest 20 to 25 knots late in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds and east 3 feet at 8 seconds. Intracoastal waters becoming rough. Showers and thunderstorms likely. Strong to severe thunderstorms will be possible, with stronger storms capable of producing damaging wind gusts, frequent lightning strikes, and possible waterspouts. SATURDAY NIGHT Northwest winds 15 to 20 knots, becoming north after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest 5 feet at 6 seconds. Intracoastal waters choppy. Showers and thunderstorms likely in the evening, then a slight chance of showers after midnight. SUNDAY North northeast winds 15 to 20 knots, becoming northeast around 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 6 seconds. Intracoastal waters becoming a moderate chop. SUNDAY NIGHT Northeast winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds. Intracoastal waters a light chop. MONDAY East northeast winds around 10 knots, becoming east during the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. MONDAY NIGHT East southeast winds around 10 knots, becoming southeast 5 to 10 knots after midnight. Seas 2 to 3 feet. Intracoastal waters becoming mostly smooth. TUESDAY Southeast winds 5 to 10 knots, becoming east southeast and increasing to around 15 knots during the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters becoming a moderate chop. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-454-020000- 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- 456 AM EDT Fri May 1 2026 TODAY Northwest winds 5 to 10 knots early, becoming northeast and increasing to around 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail: North 2 feet at 3 seconds and east 2 feet at 10 seconds. Intracoastal waters becoming a moderate chop. A chance of showers with a slight chance of thunderstorms, mainly this afternoon. TONIGHT Northeast winds 10 to 15 knots, becoming southwest after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 8 seconds. Intracoastal waters a light chop. A chance of showers with a slight chance of thunderstorms. SATURDAY Southwest winds increasing to 15 to 20 knots, becoming northwest 20 to 25 knots late in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 4 seconds and east 3 feet at 8 seconds. Intracoastal waters becoming rough. Showers and thunderstorms likely. Strong to severe thunderstorms will be possible, with stronger storms capable of producing damaging wind gusts, frequent lightning strikes, and possible waterspouts. SATURDAY NIGHT Northwest winds 15 to 20 knots, becoming north after midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest 5 feet at 6 seconds. Intracoastal waters choppy. Showers and thunderstorms likely in the evening, then a slight chance of showers after midnight. SUNDAY North northeast winds 15 to 20 knots, becoming northeast around 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 6 seconds. Intracoastal waters becoming a moderate chop. SUNDAY NIGHT Northeast winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 7 seconds. Intracoastal waters a light chop. MONDAY East northeast winds around 10 knots, becoming east during the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. MONDAY NIGHT East southeast winds around 10 knots, becoming southeast 5 to 10 knots after midnight. Seas 2 to 3 feet. Intracoastal waters becoming mostly smooth. TUESDAY Southeast winds 5 to 10 knots, becoming east southeast and increasing to around 15 knots during the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Intracoastal waters becoming a moderate chop. Winds and waves higher in and near thunderstorms. $$