Hazardous marine condition(s):
Small Craft Advisory
AMZ400-160900-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
224 PM EDT Sun Mar 15 2026
.SYNOPSIS...
A warm front situated over the Georgia coastal waters will lift
northward this afternoon as a strong low pressure center pivots from
the Upper Midwest towards the Great Lakes states. Showers and
thunderstorms will develop late this afternoon and will continue
this evening, with strong to isolated severe storms possible. This
storm's system's cold front will enter the southeastern states late
tonight, crossing our local waters on Monday afternoon. Southerly
winds will strengthen over the offshore waters adjacent to northeast
Florida late this afternoon, where Small Craft Advisories are
expected to develop overnight. Southerly winds will strengthen near
shore this evening, and Small Craft Advisory conditions will likely
develop by the late morning or early afternoon hours on Monday.
Strong to severe thunderstorms are forecast to impact our local
waters on Monday, with the potential for damaging wind gusts,
waterspouts, and large hail.
Winds will shift to westerly during the passage of the strong cold
front on Monday afternoon, with strong northwesterly winds forecast
on Monday night and Tuesday morning throughout our local waters as
high pressure builds into the southeastern states. Winds will shift
to northerly on Tuesday afternoon and then northeasterly by
Wednesday as high pressure shifts northeastward towards the Mid-
Atlantic coast. This strengthening high pressure center will wedge
down the southeastern seaboard later this week, creating another
round of Small Craft Advisory conditions on Wednesday night and
Thursday. Winds and seas are expected to diminish by Friday
afternoon.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Mar 15, 2026 at 0000 UTC...
50 nautical miles east of Flagler Beach.
53 nautical miles east of Saint Augustine Beach.
64 nautical miles east southeast of Jacksonville Beach.
68 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ450-452-160900- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- 224 PM EDT Sun Mar 15 2026 SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH MONDAY MORNING SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY MORNING REST OF TODAY Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms. TONIGHT South winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 7 seconds and south 3 feet at 4 seconds. Intracoastal waters choppy. Showers likely with a chance of thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. MONDAY South winds 15 to 20 knots, becoming southwest 20 to 25 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: South 5 feet at 6 seconds. Intracoastal waters rough. A chance of thunderstorms. A chance of showers in the morning, then showers in the afternoon. MONDAY NIGHT Northwest winds 25 to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest 5 feet at 4 seconds and southeast 4 feet at 7 seconds. Intracoastal waters very rough. A slight chance of showers and thunderstorms in the evening. TUESDAY Northwest winds 20 to 25 knots, diminishing to 10 to 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 2 to 4 feet, occasionally to 5 feet in the afternoon. Wave Detail: North 5 feet at 5 seconds and east 2 feet at 8 seconds, becoming north 3 feet at 6 seconds. Intracoastal waters rough. TUESDAY NIGHT North winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds and north 2 feet at 4 seconds. Intracoastal waters a moderate chop. WEDNESDAY North winds 10 to 15 knots, increasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters choppy. THURSDAY Northeast winds 15 to 20 knots, becoming north 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. Winds and waves higher in and near thunderstorms. $$
AMZ450-452-160900- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- 224 PM EDT Sun Mar 15 2026 SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH MONDAY MORNING SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH TUESDAY MORNING REST OF TODAY Southeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms. TONIGHT South winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 7 seconds and south 3 feet at 4 seconds. Intracoastal waters choppy. Showers likely with a chance of thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. MONDAY South winds 15 to 20 knots, becoming southwest 20 to 25 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: South 5 feet at 6 seconds. Intracoastal waters rough. A chance of thunderstorms. A chance of showers in the morning, then showers in the afternoon. MONDAY NIGHT Northwest winds 25 to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest 5 feet at 4 seconds and southeast 4 feet at 7 seconds. Intracoastal waters very rough. A slight chance of showers and thunderstorms in the evening. TUESDAY Northwest winds 20 to 25 knots, diminishing to 10 to 15 knots in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 2 to 4 feet, occasionally to 5 feet in the afternoon. Wave Detail: North 5 feet at 5 seconds and east 2 feet at 8 seconds, becoming north 3 feet at 6 seconds. Intracoastal waters rough. TUESDAY NIGHT North winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 7 seconds and north 2 feet at 4 seconds. Intracoastal waters a moderate chop. WEDNESDAY North winds 10 to 15 knots, increasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Intracoastal waters choppy. THURSDAY Northeast winds 15 to 20 knots, becoming north 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters choppy. Winds and waves higher in and near thunderstorms. $$