Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
521 FZUS54 KLCH 040610 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1210 AM CST Thu Dec 4 2025 Coastal waters from the Lower Atchafalaya River LA to High Island TX out 60 nautical miles including Sabine and Calcasieu Lakes and Vermilion and Cote Blanche Bays Seas are provided as a range of the average height of the highest one third of the waves, along with the occasional height of the average highest ten percent of the waves. GMZ400-041900- 1210 AM CST Thu Dec 4 2025 .Synopsis for Lower Atchafalaya River LA to High Island TX out 60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote Blanche Bays... Winds will gradually shift out of the north today through late Saturday with widespread, later decreasing to scattered precipitation occurring in the meanwhile. Strong offshore winds will build seas are expected to today in the vicinity of the center of the coastal low before abating late Friday as the low pushes off to the east. Drier conditions and light to moderate offshore winds will prevail from Sunday through early next week. $$ GMZ430-041900- Sabine Lake- 1210 AM CST Thu Dec 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...Northeast winds 10 to 15 knots. Lake waters choppy. Showers with a chance of thunderstorms until late afternoon, then showers likely with a slight chance of thunderstorms late. .TONIGHT...North winds 10 to 15 knots. Lake waters choppy. A chance of showers, mainly in the evening. .FRIDAY...North winds 5 to 10 knots. Lake waters light chop. A chance of showers. .FRIDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A chance of showers. .SATURDAY...Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth. A chance of showers, mainly in the morning. .SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. .SUNDAY...Northwest winds 5 to 10 knots. Lake waters light chop. .SUNDAY NIGHT...North winds 10 to 15 knots. Lake waters choppy. .MONDAY...North winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Lake waters choppy. .MONDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ432-041900- Calcasieu Lake- 1210 AM CST Thu Dec 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...Northeast winds 10 to 15 knots, increasing to 15 to 20 knots late. Lake waters rough. A chance of thunderstorms. Showers. .TONIGHT...North winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Lake waters rough. A chance of showers. .FRIDAY...North winds 10 to 15 knots, becoming northeast 5 to 10 knots in the afternoon. Lake waters choppy. A chance of showers. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters light chop. A chance of showers. .SATURDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Lake waters light chop. A chance of showers. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. A slight chance of showers in the evening. .SUNDAY...West winds 5 to 10 knots, becoming northwest in the afternoon. Lake waters light chop. .SUNDAY NIGHT...North winds 10 to 15 knots. Lake waters choppy. .MONDAY...North winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Lake waters choppy. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ435-041900- Vermilion and West Cote Blanche Bays- 1210 AM CST Thu Dec 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...East winds 10 to 15 knots. Bay waters choppy. Showers with a chance of thunderstorms. .TONIGHT...North winds 10 to 15 knots. Bay waters choppy. A chance of showers and thunderstorms. .FRIDAY...North winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Bay waters choppy. A slight chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. Showers likely. .SATURDAY...Northeast winds 5 to 10 knots. Bay waters light chop. Showers likely. .SATURDAY NIGHT...East winds around 5 knots. Bay waters smooth. A chance of showers. .SUNDAY...North winds 5 to 10 knots, becoming northwest in the afternoon. Bay waters light chop. .SUNDAY NIGHT...North winds 10 to 15 knots. Bay waters choppy. A slight chance of showers in the evening. .MONDAY...North winds 10 to 15 knots. Bay waters choppy. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ436-041900- Atchafalaya and East Cote Blanche Bays- 1210 AM CST Thu Dec 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...East winds 10 to 15 knots. Bay waters choppy. Showers this morning. A chance of thunderstorms. Showers likely this afternoon. .TONIGHT...North winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. Showers, mainly in the evening. .FRIDAY...North winds 5 to 10 knots. Bay waters light chop. Showers likely with a chance of thunderstorms in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...Northeast winds around 5 knots. Bay waters smooth. Showers. .SATURDAY...Northeast winds 5 to 10 knots. Bay waters light chop. Showers. .SATURDAY NIGHT...East winds around 5 knots. Bay waters smooth. A chance of showers. .SUNDAY...North winds 5 to 10 knots, becoming northwest in the afternoon. Bay waters light chop. A slight chance of showers in the morning. .SUNDAY NIGHT...North winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Bay waters choppy. A slight chance of showers in the evening. .MONDAY...North winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Bay waters choppy. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ450-041900- Coastal waters from Cameron LA to High Island TX out 20 NM- 1210 AM CST Thu Dec 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...Northeast winds 10 to 15 knots with gusts up to 20 knots, becoming north 15 to 20 knots late. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds. A chance of thunderstorms. .TONIGHT...North winds 15 to 20 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds and south 2 feet at 6 seconds. A slight chance of thunderstorms in the evening. A chance of showers. .FRIDAY...North winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 3 seconds and south 1 foot at 6 seconds. A chance of showers in the morning, then showers likely in the afternoon. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 1 foot at 3 seconds and southeast 1 foot at 6 seconds. Showers likely. .SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 4 seconds. A chance of showers. .SATURDAY NIGHT...Southeast winds around 10 knots, becoming south after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of showers in the evening. .SUNDAY...Northwest winds around 10 knots. Seas around 2 feet. .SUNDAY NIGHT...North winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to 3 feet. .MONDAY...North winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. .MONDAY NIGHT...Northeast winds around 10 knots. Seas 1 foot or less. Winds and seas higher in and near thunderstorms. $$ GMZ452-041900- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1210 AM CST Thu Dec 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...Northeast winds 10 to 15 knots, increasing to 15 to 20 knots late. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. A chance of thunderstorms. Showers. .TONIGHT...North winds 15 to 20 knots. Seas 2 to 4 feet. Wave Detail: Northeast 2 feet at 3 seconds and south 2 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY...North winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 3 seconds and south 1 foot at 6 seconds. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely in the afternoon. .FRIDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds and south 1 foot at 6 seconds. Showers likely. .SATURDAY...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 1 foot at 3 seconds and south 1 foot at 5 seconds. Showers likely, mainly in the morning. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A chance of showers, mainly in the evening. .SUNDAY...North winds around 10 knots, becoming northwest in the afternoon. Seas around 2 feet. .SUNDAY NIGHT...North winds 15 to 20 knots. Seas 2 to 3 feet. A slight chance of showers in the evening. .MONDAY...North winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$ GMZ455-041900- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1210 AM CST Thu Dec 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...East winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 4 seconds. Showers with a chance of thunderstorms. .TONIGHT...Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: North 2 feet at 3 seconds and south 1 foot at 5 seconds. A chance of thunderstorms. Showers. .FRIDAY...North winds 10 to 15 knots. Seas around 2 feet. Wave Detail: North 1 foot at 2 seconds. Showers likely with a chance of thunderstorms in the morning, then showers with a slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Showers. .SATURDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Showers with a slight chance of thunderstorms in the morning, then showers likely in the afternoon. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 2 seconds. A chance of showers. .SUNDAY...North winds 5 to 10 knots, becoming northwest in the afternoon. Seas 1 foot or less. A slight chance of showers in the morning. .SUNDAY NIGHT...North winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas around 2 feet. A slight chance of showers in the evening. .MONDAY...North winds 10 to 15 knots. Seas around 2 feet. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. Winds and seas higher in and near thunderstorms. $$ GMZ470-041900- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1210 AM CST Thu Dec 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds and northeast 3 feet at 4 seconds. A chance of thunderstorms. Showers. .TONIGHT...North winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: Northeast 4 feet at 5 seconds and south 3 feet at 6 seconds. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: North 3 feet at 5 seconds and southeast 2 feet at 6 seconds. Showers likely with a slight chance of thunderstorms in the morning, then showers likely in the afternoon. .FRIDAY NIGHT...Northeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds. Showers likely. .SATURDAY...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds and southeast 2 feet at 6 seconds. Showers likely, mainly in the morning. .SATURDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers in the evening. .SUNDAY...Northwest winds 10 to 15 knots. Seas around 2 feet. .SUNDAY NIGHT...North winds 15 to 20 knots. Seas 2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet after midnight. .MONDAY...North winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$ GMZ472-041900- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1210 AM CST Thu Dec 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...South winds 10 to 15 knots with gusts up to 20 knots, becoming northeast with gusts up to 20 knots late. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds and northeast 2 feet at 3 seconds. Showers with a chance of thunderstorms. .TONIGHT...North winds 15 to 20 knots. Seas 3 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds and south 3 feet at 6 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...North winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds and southeast 2 feet at 6 seconds. Showers likely with a chance of thunderstorms in the morning, then showers with a slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...Northeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 4 seconds and southeast 2 feet at 6 seconds. Showers. A slight chance of thunderstorms after midnight. .SATURDAY...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds and northeast 1 foot at 3 seconds. Showers with a slight chance of thunderstorms in the morning, then showers likely in the afternoon. .SATURDAY NIGHT...East winds around 10 knots, becoming northeast after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers, mainly in the evening. .SUNDAY...North winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers. .SUNDAY NIGHT...North winds 15 to 20 knots. Seas 2 to 4 feet. A slight chance of showers in the evening. .MONDAY...North winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$ GMZ475-041900- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1210 AM CST Thu Dec 4 2025 ...SMALL CRAFT EXERCISE CAUTION IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...South winds 15 to 20 knots, becoming southeast 10 to 15 knots with gusts up to 20 knots late this morning and early afternoon, then becoming east late. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 5 seconds. A chance of thunderstorms. Showers. .TONIGHT...Northeast winds around 10 knots, becoming north after midnight. Seas around 3 feet. Wave Detail: South 3 feet at 6 seconds and north 2 feet at 4 seconds. A chance of thunderstorms. Showers, mainly in the evening. .FRIDAY...North winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: North 2 feet at 4 seconds and southeast 2 feet at 6 seconds. Showers. A chance of thunderstorms, mainly in the morning. .FRIDAY NIGHT...Northeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 5 seconds and south 2 feet at 6 seconds. Showers. A slight chance of thunderstorms after midnight. .SATURDAY...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Showers with a slight chance of thunderstorms. .SATURDAY NIGHT...East winds around 10 knots, becoming west after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of thunderstorms. Showers likely, mainly in the evening. .SUNDAY...North winds around 10 knots. Seas around 2 feet. A slight chance of showers. .SUNDAY NIGHT...North winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet after midnight. A slight chance of showers in the evening. .MONDAY...North winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms. $$