Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
182 FZUS54 KLCH 120809 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 309 AM CDT Sat Sep 12 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. GMZ400-122100- 309 AM CDT Sat Sep 12 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 deep south through the middle of the coming week. This will keep winds generally light and south to southwest during the period. Seas will also remain low at 3 feet or less into Wednesday. $$ GMZ430-122100- Sabine Lake- 309 AM CDT Sat Sep 12 2026 .TODAY...Southwest winds around 5 knots, becoming south this afternoon. Lake waters light chop. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...South winds 5 to 10 knots, becoming southwest after midnight. Lake waters light chop. .SUNDAY...South winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds around 5 knots. Lake waters smooth. .MONDAY...South winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Lake waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...South winds around 5 knots. Lake waters smooth. .TUESDAY...South winds around 5 knots, becoming southeast in the afternoon. Lake waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Southeast winds around 5 knots. Lake waters smooth. .WEDNESDAY...East winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ432-122100- Calcasieu Lake- 309 AM CDT Sat Sep 12 2026 .TODAY...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...South winds 5 to 10 knots, becoming southwest after midnight. Lake waters light chop. .SUNDAY...Southwest winds around 5 knots, becoming south in the afternoon. Lake waters light chop. A chance of showers and thunderstorms. .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 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 chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Southeast winds 5 to 10 knots, diminishing to around 5 knots after midnight. Lake waters light chop. .WEDNESDAY...East winds 5 to 10 knots, becoming southeast 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. .WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ435-122100- Vermilion and West Cote Blanche Bays- 309 AM CDT Sat Sep 12 2026 .TODAY...Southwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms this morning, then showers and thunderstorms likely early this afternoon. A chance of showers and thunderstorms late. .TONIGHT...Southwest winds around 5 knots. Bay waters smooth. .SUNDAY...South winds around 5 knots. Bay waters smooth. A chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .SUNDAY NIGHT...South winds around 5 knots. Bay waters smooth. .MONDAY...South winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. .TUESDAY...Northeast winds around 5 knots, becoming southeast around 5 knots in the afternoon. Bay waters smooth. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Southeast winds around 5 knots. Bay waters smooth. .WEDNESDAY...East winds 5 to 10 knots, becoming southeast in the afternoon. Bay waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Bay waters choppy. A slight chance of showers and thunderstorms in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ436-122100- Atchafalaya and East Cote Blanche Bays- 309 AM CDT Sat Sep 12 2026 .TODAY...Southwest winds around 5 knots. Bay waters smooth. Showers and thunderstorms likely, mainly this morning. .TONIGHT...Southwest winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms after midnight. .SUNDAY...Southwest winds around 5 knots. Bay waters smooth. A slight chance of showers and 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 chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. .TUESDAY...Northeast winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds around 5 knots. Bay waters smooth. .WEDNESDAY...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Bay waters choppy. A slight chance of thunderstorms in the evening. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$ GMZ450-122100- Coastal waters from Cameron LA to High Island TX out 20 NM- 309 AM CDT Sat Sep 12 2026 .TODAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning and early afternoon. A slight chance of showers and thunderstorms late. .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .MONDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. .WEDNESDAY...East winds 10 to 15 knots. Seas around 2 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-122100- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 309 AM CDT Sat Sep 12 2026 .TODAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A chance of showers and thunderstorms. .TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds. .SUNDAY...South winds around 5 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: Southwest 2 feet at 5 seconds, becoming southwest 1 foot at 5 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .MONDAY...South winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Seas around 2 feet. Wave Detail: South 1 foot at 5 seconds. A slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .TUESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. .WEDNESDAY...East winds 10 to 15 knots. Seas around 2 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ455-122100- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 309 AM CDT Sat Sep 12 2026 .TODAY...Southwest winds 5 to 10 knots, diminishing to around 5 knots this afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. Showers and thunderstorms likely this morning, then a chance of showers and thunderstorms early this afternoon. A slight chance of showers and thunderstorms late. .TONIGHT...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of showers and thunderstorms after midnight. .SUNDAY...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .SUNDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 5 seconds. .MONDAY...South winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. .TUESDAY...East winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...East winds 10 to 15 knots. Seas around 2 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 3 feet. A slight chance of thunderstorms. A chance of showers, mainly in the evening. Winds and seas higher in and near thunderstorms. $$ GMZ470-122100- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 309 AM CDT Sat Sep 12 2026 .TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers and thunderstorms. .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. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. .TUESDAY...Southeast winds around 5 knots. Seas around 2 feet. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. .WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-122100- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 309 AM CDT Sat Sep 12 2026 .TODAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds. .SUNDAY...South winds around 5 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 6 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .MONDAY...Southeast winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .TUESDAY...Southeast winds around 5 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. .WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ475-122100- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 309 AM CDT Sat Sep 12 2026 .TODAY...Southwest winds 5 to 10 knots. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: Southwest 2 feet at 4 seconds, becoming southwest 1 foot at 5 seconds. A chance of showers and thunderstorms early this morning, then showers and thunderstorms likely late this morning and early afternoon. A slight chance of showers and thunderstorms late. .TONIGHT...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 5 seconds. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 5 seconds. A chance of showers and thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .SUNDAY NIGHT...South winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .MONDAY...Southeast winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers and thunderstorms. .MONDAY NIGHT...Southeast winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .TUESDAY...Southeast winds around 5 knots, becoming east in the afternoon. Seas 1 foot or less, then around 2 feet in the afternoon. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY...East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 2 to 4 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$