Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
228 FZUS54 KLCH 110809 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 309 AM CDT Fri Sep 11 2026 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. GMZ400-112100- 309 AM CDT Fri Sep 11 2026 .Synopsis for Lower Atchafalaya River LA to High Island TX out 60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote Blanche Bays... Outside of storms, generally light southerly winds are anticipated through the period as high pressure remains centered off the Atlantic coast. Seas will also remain low. $$ GMZ430-112100- Sabine Lake- 309 AM CDT Fri Sep 11 2026 .TODAY...West winds around 5 knots, becoming south this afternoon. Lake waters light chop. A chance of thunderstorms. .TONIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .SATURDAY...Southwest winds around 5 knots, becoming south in the afternoon. Lake waters light chop. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .SATURDAY NIGHT...South winds 5 to 10 knots, diminishing to around 5 knots after midnight. Lake waters light chop. Showers likely with a chance of thunderstorms in the evening. .SUNDAY...South winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Lake waters light chop. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...South winds around 5 knots. Lake waters smooth. .MONDAY...South winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Lake waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...South winds 5 to 10 knots, diminishing to around 5 knots after midnight. Lake waters light chop. .TUESDAY...Southeast winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Southeast winds around 5 knots. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ432-112100- Calcasieu Lake- 309 AM CDT Fri Sep 11 2026 .TODAY...Northwest winds around 5 knots, becoming south this afternoon. Lake waters light chop. A chance of thunderstorms. .TONIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .SATURDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers after midnight. .SUNDAY...South winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Lake waters light chop. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. .MONDAY...South winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Lake waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...South winds 5 to 10 knots, diminishing to around 5 knots after midnight. Lake waters light chop. .TUESDAY...Southeast winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Lake waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Southeast winds around 5 knots. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ435-112100- Vermilion and West Cote Blanche Bays- 309 AM CDT Fri Sep 11 2026 .TODAY...West winds around 5 knots, becoming southwest late. Bay waters light chop. A chance of showers this morning. A chance of thunderstorms. Showers likely this afternoon. .TONIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .SATURDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 5 knots. Bay waters smooth. Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...South winds around 5 knots. Bay waters smooth. .MONDAY...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. .TUESDAY...Southeast winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Southeast winds around 5 knots. Bay waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ436-112100- Atchafalaya and East Cote Blanche Bays- 309 AM CDT Fri Sep 11 2026 .TODAY...West winds around 5 knots, becoming southwest late. Bay waters light chop. A chance of showers. A slight chance of thunderstorms early this morning, then a chance of thunderstorms late this morning and afternoon. .TONIGHT...Southwest winds around 5 knots. Bay waters smooth. A chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...Southwest winds around 5 knots. Bay waters smooth. A chance of thunderstorms. Showers likely, mainly in the morning. .SATURDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .SUNDAY...South winds around 5 knots. Bay waters smooth. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...South winds around 5 knots. Bay waters smooth. .MONDAY...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. .TUESDAY...Southeast winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds around 5 knots. Bay waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ450-112100- Coastal waters from Cameron LA to High Island TX out 20 NM- 309 AM CDT Fri Sep 11 2026 .TODAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A chance of thunderstorms. .TONIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .MONDAY...South winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. .TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$ GMZ452-112100- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 309 AM CDT Fri Sep 11 2026 .TODAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. A chance of thunderstorms. .TONIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds. A slight chance of showers. A slight chance of thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: South 2 feet at 5 seconds, becoming south 1 foot at 5 seconds. Showers likely with a chance of thunderstorms in the morning, then a slight chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .MONDAY...South winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. .TUESDAY...Southeast winds around 5 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-112100- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 309 AM CDT Fri Sep 11 2026 .TODAY...West winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. A chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. A chance of thunderstorms. A chance of showers. .SATURDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .SUNDAY...South winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .SUNDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. .MONDAY...South winds around 5 knots. Seas 1 foot or less. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. .TUESDAY...Southeast winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-112100- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 309 AM CDT Fri Sep 11 2026 .TODAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. A chance of thunderstorms. .TONIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms after midnight. .SATURDAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds. A chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .SATURDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers after midnight. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .MONDAY...South winds 5 to 10 knots. Seas around 2 feet. .MONDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. .TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Winds and seas higher in and near thunderstorms. $$ GMZ472-112100- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 309 AM CDT Fri Sep 11 2026 .TODAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds and southeast 1 foot at 5 seconds. A chance of thunderstorms. .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds. A slight chance of showers and thunderstorms after midnight. .SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms, mainly in the morning. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. .TUESDAY...Southeast winds around 5 knots. Seas around 2 feet. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-112100- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 309 AM CDT Fri Sep 11 2026 .TODAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds and southeast 1 foot at 5 seconds. Showers likely this morning. A chance of thunderstorms. A chance of showers this afternoon. .TONIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. A slight chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .SATURDAY NIGHT...South winds around 5 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Southwest 1 foot at 5 seconds, becoming south 2 feet at 5 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the evening. .SUNDAY...Southeast winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms, mainly in the morning. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .MONDAY...Southeast winds around 5 knots. Seas around 2 feet. .MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. .TUESDAY...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$