Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
235 FZUS52 KJAX 030529 CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia National Weather Service Jacksonville FL 1229 AM EST Sat Jan 3 2026 Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach FL out to 60 nm. Seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 1/10 of the waves. AMZ400-032000- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 1229 AM EST Sat Jan 3 2026 .SYNOPSIS... Couple waves of low pressure over the deep south will move eastward this morning and drag a frontal boundary across the waters this late this afternoon into early evening and approach the Georgia coast this afternoon, then exiting the Northeast Florida waters by sunrise Sunday. This storm system will bring showers and a few embedded storms to the waters this afternoon and end overnight. Small Craft Advisory conditions will develop ahead of the front across the offshore waters by midday and persist into Sunday morning as winds turn northwesterly and then diminish late Sunday. Winds will shift to north-northeasterly by Monday as high pressure builds over the Mid-Atlantic states, then moves offshore into midweek with south to southwest winds. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Jan 02, 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. 71 nautical miles east southeast of St Simons Island. This data derived from NCEP Global RTOFS model. $$ AMZ450-032000- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- 1229 AM EST Sat Jan 3 2026 .REST OF TONIGHT...Southwest winds 10 to 15 knots. Waves 1 foot or less, then around 2 feet. Wave Detail: South 2 feet at 4 seconds. Intracoastal waters a moderate chop. .SATURDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. Intracoastal waters a moderate chop. A chance of showers in the morning, then showers with a slight chance of thunderstorms in the afternoon. .SATURDAY NIGHT...West winds around 10 knots, becoming north after midnight. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. Intracoastal waters a moderate chop. Showers likely with a slight chance of thunderstorms in the evening. .SUNDAY...North winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 4 seconds and south 2 feet at 5 seconds. Intracoastal waters a moderate chop. .SUNDAY NIGHT THROUGH MONDAY NIGHT...North winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 7 seconds. Intracoastal waters light chop. .TUESDAY THROUGH WEDNESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 8 seconds. Intracoastal waters light chop. Winds and waves higher in and near thunderstorms. $$ AMZ452-454-032000- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- 1229 AM EST Sat Jan 3 2026 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM 10 AM EST THIS MORNING THROUGH SUNDAY MORNING... .REST OF TONIGHT...Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 3 seconds. Intracoastal waters a moderate chop. .SATURDAY...Southwest winds 15 to 20 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 4 seconds. Intracoastal waters choppy. A chance of showers with a slight chance of thunderstorms in the afternoon. .SATURDAY NIGHT...Southwest winds 15 to 20 knots, becoming northwest 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southwest 3 feet at 4 seconds. Intracoastal waters choppy. Showers with a chance of thunderstorms in the evening, then a chance of showers after midnight. .SUNDAY...North winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 5 seconds and northeast 3 feet at 8 seconds. Intracoastal waters choppy. .SUNDAY NIGHT AND MONDAY...North winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds. Intracoastal waters a moderate chop. .MONDAY NIGHT...Northeast winds 5 to 10 knots, becoming northwest after midnight. Seas around 3 feet. Wave Detail: Northeast 3 feet at 9 seconds. Intracoastal waters light chop. .TUESDAY THROUGH WEDNESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Intracoastal waters light chop. Winds and waves higher in and near thunderstorms. $$ AMZ470-472-474-032000- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM- 1229 AM EST Sat Jan 3 2026 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT UNTIL 10 AM EST THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING THROUGH SUNDAY MORNING... .REST OF TONIGHT...Southwest winds 10 to 15 knots, increasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southwest 3 feet at 4 seconds. .SATURDAY...Southwest winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southwest 4 feet at 5 seconds. Showers likely with a slight chance of thunderstorms in the afternoon. .SATURDAY NIGHT...Southwest winds 15 to 20 knots, becoming northwest after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southwest 5 feet at 5 seconds. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SUNDAY...North winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northwest 4 feet at 5 seconds and east 3 feet at 8 seconds. A slight chance of showers in the morning. .SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 6 seconds. .MONDAY...Northeast winds 5 to 10 knots. Seas around 4 feet, occasionally to 5 feet. Wave Detail: Northeast 4 feet at 9 seconds. A slight chance of showers. .MONDAY NIGHT...Northeast winds around 5 knots, becoming west after midnight. Seas 3 to 4 feet, occasionally to 5 feet. .TUESDAY THROUGH WEDNESDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$