FZUS54 KLCH 072009 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 309 PM CDT Tue Jul 7 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. GMZ400-080900- 309 PM CDT Tue Jul 7 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... High pressure will remain stretched from the Atlantic into the northern Gulf through the week. This will keep a light south to southwest flow in place. A weakness aloft will also allow showers and storms into mid week, and again this weekend. $$ GMZ430-080900- Sabine Lake- 309 PM CDT Tue Jul 7 2026 .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. .THURSDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. .FRIDAY...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .SATURDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Lake waters light chop. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ432-080900- Calcasieu Lake- 309 PM CDT Tue Jul 7 2026 .TONIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms early this evening. .WEDNESDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. .THURSDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the morning. .THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. .FRIDAY...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .SATURDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. 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. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ435-080900- Vermilion and West Cote Blanche Bays- 309 PM CDT Tue Jul 7 2026 .TONIGHT...Southwest winds 5 to 10 knots. Baywaters light chop. A slight chance of showers and thunderstorms early this evening. .WEDNESDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. .THURSDAY...Southwest winds around 5 knots, becoming south in the afternoon. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. .FRIDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .SATURDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 5 knots. Bay waters smooth. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...Southwest winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ436-080900- Atchafalaya and East Cote Blanche Bays- 309 PM CDT Tue Jul 7 2026 .TONIGHT...Southwest winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. .THURSDAY...Southwest winds around 5 knots, becoming south in the afternoon. Bay waters light chop. A slight chance of showers and thunderstorms in the morning. .THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. .FRIDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms. .SATURDAY...South winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 5 knots. Bay waters smooth. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...Southwest winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ450-080900- Coastal waters from Cameron LA to High Island TX out 20 NM- 309 PM CDT Tue Jul 7 2026 .TONIGHT...South winds 10 to 15 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Southwest 1 foot at 3 seconds, becoming south 2 feet at 4 seconds. .WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A slight chance of showers and thunderstorms in the morning. .WEDNESDAY NIGHT...Southwest winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. .THURSDAY...Southwest winds 5 to 10 knots, becoming south 10 to 15 knots in the afternoon. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A slight chance of showers and thunderstorms in the morning. .THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. .FRIDAY...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. .SATURDAY...South winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms, mainly in the morning. .SATURDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ452-080900- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 309 PM CDT Tue Jul 7 2026 .TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Southwest 1 foot at 3 seconds, becoming southwest 2 feet at 3 seconds. .WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. .WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. .THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. .THURSDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. .FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. .SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms, mainly in the morning. .SATURDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ455-080900- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 309 PM CDT Tue Jul 7 2026 .TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. .WEDNESDAY...West winds 5 to 10 knots, becoming southwest in the afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. .THURSDAY...South winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. A slight chance of showers and thunderstorms in the morning. .THURSDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. .FRIDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. A chance of showers and thunderstorms, mainly in the morning. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ470-080900- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 309 PM CDT Tue Jul 72026 .TONIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: South 1 foot at 4 seconds, becoming south 2 feet at 5 seconds. .WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning. .WEDNESDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .THURSDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .FRIDAY...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms, mainly in the morning. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms in the morning. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms, mainly in the morning. .SUNDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-080900- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 309 PM CDT Tue Jul 7 2026 .TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Southwest 1 foot at 4 seconds, becoming southwest 2 feet at 5 seconds. .WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .THURSDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. .FRIDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .FRIDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms, mainly in the morning. .SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-080900- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 309 PM CDT Tue Jul 7 2026 .TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. .WEDNESDAY...West winds 5 to 10 knots, becoming southwest in the afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 5 seconds. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .THURSDAY...South winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 5 seconds. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. .FRIDAY...Southeast winds 5 to 10 knots.Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers and thunderstorms, mainly in the morning. .FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms, mainly in the morning. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. .SUNDAY NIGHT...South 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. $$