Coastal Waters Forecast
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
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847 FZUS52 KJAX 311734 CCA CWFJAX Coastal Waters Forecast for Northeast Florida/Southeast Georgia...CORRECTED National Weather Service Jacksonville FL 1234 PM EST Sat Jan 31 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. AMZ400-010800- Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm- 1234 PM EST Sat Jan 31 2026 .SYNOPSIS... Low pressure will strengthen offshore of the Carolina Atlantic coast today. Strengthening offshore flow increases this afternoon with Gale conditions expected across all local waters through tonight. A chance of showers and even a few snow showers moves across portions of southeast Georgia then southward across local waters overnight. Occasional gusts near 50 knots are possible tonight. As strong offshore flow develops today into tonight, a period of low water levels is likely tonight around low tide. Winds and seas begin to subside late Sunday afternoon into Monday to Small Craft Advisory conditions as high pressure builds across the Gulf Coast states. The high builds over the Florida peninsula Tuesday with seas falling below Advisory levels. The next cold front approaches from the west Wednesday. .GULF STREAM... The approximate location of the west wall of the Gulf Stream as of Jan 31, 2026 at 0000 UTC... 58 nautical miles east of Flagler Beach. 66 nautical miles east of Saint Augustine Beach. 78 nautical miles east southeast of Jacksonville Beach. 80 nautical miles east southeast of St Simons Island. This data derived from NCEP Global RTOFS model. $$ AMZ450-452-454-010800- 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- 1234 PM EST Sat Jan 31 2026 ...GALE WARNING IN EFFECT THROUGH SUNDAY AFTERNOON... ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... .REST OF TODAY...West winds around 15 knots, increasing to 30 to 40 knots this afternoon. Seas around 2 feet, building to 4 to 6 feet, occasionally to 8 feet this afternoon. Wave Detail: West 2 feet at 3 seconds and northeast 2 feet at 8 seconds, becoming west 6 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters extremely rough. .TONIGHT...Northwest winds 35 to 45 knots. Seas 7 to 10 feet, occasionally to 13 feet. Wave Detail: Northwest 9 feet at 6 seconds and east 2 feet at 9 seconds. Intracoastal waters extremely rough. .SUNDAY...Northwest winds 25 to 30 knots, diminishing to 15 to 20 knots in the afternoon. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 4 to 6 feet, occasionally to 8 feet in the afternoon. Wave Detail: Northwest 9 feet at 6 seconds and northeast 2 feet at 9 seconds, becoming northwest 5 feet at 6 seconds and northeast 3 feet at 9 seconds. Intracoastal waters very rough. .SUNDAY NIGHT...Northwest winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: North 5 feet at 6 seconds and northeast 4 feet at 11 seconds. Intracoastal waters rough. .MONDAY...Northwest winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: North 5 feet at 6 seconds and east 4 feet at 12 seconds. Intracoastal waters choppy. .MONDAY NIGHT...West winds 5 to 10 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 13 seconds and north 2 feet at 5 seconds. Intracoastal waters light chop. .TUESDAY...Southwest winds 5 to 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters light chop. .WEDNESDAY...Southwest winds 5 to 10 knots, becoming west 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Intracoastal waters choppy. A chance of showers in the afternoon. Showers likely in the evening. $$ AMZ470-472-474-010800- 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- 1234 PM EST Sat Jan 31 2026 ...GALE WARNING IN EFFECT THROUGH SUNDAY AFTERNOON... ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... .REST OF TODAY...West winds 15 to 20 knots, increasing to 30 to 40 knots this afternoon. Seas around 3 feet, building to 5 to 7 feet, occasionally to 9 feet this afternoon. Wave Detail: Northwest 3 feet at 4 seconds and northeast 2 feet at 9 seconds, becoming west 7 feet at 6 seconds and east 2 feet at 9 seconds. .TONIGHT...Northwest winds 35 to 45 knots. Seas 11 to 15 feet, occasionally to 19 feet. Wave Detail: Northwest 14 feet at 8 seconds and east 2 feet at 9 seconds. A slight chance of thunderstorms in the evening. A chance of rain and snow showers. .SUNDAY...Northwest winds 25 to 30 knots with gusts up to 40 knots, diminishing to 20 to 25 knots in the afternoon. Seas 9 to 13 feet, occasionally to 17 feet, subsiding to 7 to 10 feet, occasionally to 13 feet in the afternoon. Wave Detail: Northwest 13 feet at 8 seconds and northeast 3 feet at 11 seconds, becoming northwest 8 feet at 7 seconds and northeast 5 feet at 11 seconds. .SUNDAY NIGHT...Northwest winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: North 7 feet at 7 seconds and northeast 6 feet at 11 seconds. .MONDAY...Northwest winds 15 to 20 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: North 6 feet at 7 seconds and northeast 5 feet at 12 seconds. .MONDAY NIGHT...Northwest winds 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northeast 5 feet at 12 seconds and northwest 3 feet at 5 seconds. .TUESDAY...West winds 5 to 10 knots, becoming southwest 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. .WEDNESDAY...Southwest winds 10 to 15 knots, becoming west 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers in the afternoon. Showers likely in the evening. Winds and seas higher in and near thunderstorms. $$