Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
970 FZUS54 KLCH 081738 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1237 PM CDT Fri Aug 8 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. GMZ400-090600- 1237 PM CDT Fri Aug 8 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... Light and variable winds and low seas will continue into tonight, along with isolated convection. A light to moderate E to SE flow will develop through the weekend as a weak disturbance aloft passes across the northern Gulf. Coverage of showers and storms will become more scattered to widespread Sunday into next week as moisture increases and an upper level weakness lingers nearby. $$ GMZ430-090600- Sabine Lake- 1237 PM CDT Fri Aug 8 2025 .TONIGHT...Southeast winds around 5 knots. Lake waters smooth. .SATURDAY...East winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...Southeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY...East winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SUNDAY NIGHT...Southeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .MONDAY...Northeast winds around 5 knots, becoming southeast around 5 knots in the afternoon. Lake waters smooth. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .MONDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms. .TUESDAY...Northwest winds around 5 knots, becoming south around 5 knots in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .TUESDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of showers. A slight chance of thunderstorms after midnight. .WEDNESDAY...Southwest winds around 5 knots. Lake waters smooth. A chance of thunderstorms. A chance of showers. .WEDNESDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ432-090600- Calcasieu Lake- 1237 PM CDT Fri Aug 8 2025 .TONIGHT...Southeast winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms early this evening. .SATURDAY...East winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...Southeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY...East winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SUNDAY NIGHT...Southeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .MONDAY...Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .MONDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY...North winds around 5 knots, becoming south in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .TUESDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .WEDNESDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. A chance of showers. .WEDNESDAY 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. $$ GMZ435-090600- Vermilion and West Cote Blanche Bays- 1237 PM CDT Fri Aug 8 2025 .TONIGHT...Southeast winds around 5 knots, becoming east late. Bay waters smooth. A chance of showers and thunderstorms early this evening. .SATURDAY...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .SUNDAY...East winds 5 to 10 knots, becoming southeast in the afternoon. Bay waters light chop. Showers likely with a chance of thunderstorms in the morning, then showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Southeast winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .MONDAY...East winds around 5 knots, becoming southeast in the afternoon. Bay waters smooth. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .TUESDAY...Northeast winds around 5 knots, becoming south in the afternoon. Bay waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .TUESDAY NIGHT...South winds around 5 knots. Bay waters smooth. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .WEDNESDAY...South winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .WEDNESDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ436-090600- Atchafalaya and East Cote Blanche Bays- 1237 PM CDT Fri Aug 8 2025 .TONIGHT...East winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms early this evening. A slight chance of showers and thunderstorms late. .SATURDAY...East winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SATURDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...East winds 5 to 10 knots, becoming southeast in the afternoon. Bay waters light chop. Showers likely with a chance of thunderstorms in the morning, then showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Southeast winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .MONDAY...East winds around 5 knots, becoming south in the afternoon. Bay waters smooth. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .TUESDAY...East winds around 5 knots, becoming south in the afternoon. Bay waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .TUESDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .WEDNESDAY...South winds around 5 knots. Bay waters smooth. Showers likely with a chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .WEDNESDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ450-090600- Coastal waters from Cameron LA to High Island TX out 20 NM- 1237 PM CDT Fri Aug 8 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms late. .SATURDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Southeast 1 foot at 4 seconds. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .MONDAY...Northwest winds around 5 knots, becoming southeast in the afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY...West winds around 5 knots, becoming south in the afternoon. Seas 1 foot or less. A chance of showers and thunderstorms. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. A chance of thunderstorms. A chance of showers. .WEDNESDAY NIGHT...South winds around 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-090600- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1237 PM CDT Fri Aug 8 2025 .TONIGHT...Southeast winds around 5 knots, becoming 5 to 10 knots late this evening and overnight. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A chance of showers and thunderstorms early this evening. A slight chance of showers and thunderstorms after midnight. .SATURDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. Thunderstorms likely. Showers. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...Northwest winds around 5 knots, becoming southeast in the afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .TUESDAY...West winds around 5 knots, becoming south in the afternoon. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-090600- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1237 PM CDT Fri Aug 8 2025 .TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 2 seconds. A slight chance of showers and thunderstorms until early morning, then a chance of showers and thunderstorms late. .SATURDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. Showers and thunderstorms likely. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. .SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. Thunderstorms likely. Showers. .SUNDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...Southeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. Showers likely. Thunderstorms likely, mainly in the morning. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .TUESDAY...South winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .TUESDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .WEDNESDAY...South winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-090600- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1237 PM CDT Fri Aug 8 2025 .TONIGHT...Southeast winds around 5 knots, becoming 5 to 10 knots late this evening and overnight. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms late. .SATURDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 5 seconds. A chance of showers and thunderstorms. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. Wave Detail: East 1 foot at 4 seconds, becoming southeast 1 foot at 4 seconds. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .MONDAY...West winds around 5 knots, becoming east in the afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of showers. A chance of thunderstorms, mainly in the morning. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms after midnight. .TUESDAY...West winds around 5 knots, becoming southeast in the afternoon. Seas 1 foot or less. A chance of showers. A chance of thunderstorms, mainly in the morning. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms after midnight. .WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-090600- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1237 PM CDT Fri Aug 8 2025 .TONIGHT...Southeast winds around 5 knots, becoming 5 to 10 knots late this evening and overnight. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms after midnight. A chance of showers and thunderstorms late. .SATURDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. Showers and thunderstorms likely, mainly in the morning. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: East 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. .SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. Showers with thunderstorms likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .MONDAY...West winds around 5 knots, becoming east in the afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. Showers likely with a chance of thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .TUESDAY...West winds around 5 knots, becoming south in the afternoon. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .WEDNESDAY...South winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-090600- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1237 PM CDT Fri Aug 8 2025 .TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A chance of showers this evening. A chance of thunderstorms. Showers likely after midnight. .SATURDAY...East winds around 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave Detail: East 1 foot at 4 seconds, becoming east 1 foot at 3 seconds. Showers and thunderstorms likely. .SATURDAY NIGHT...East winds around 10 knots. Seas around 2 feet in the evening, then 1 foot or less. Wave Detail: East 2 feet at 4 seconds, becoming east 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. .SUNDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. Showers with thunderstorms likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Southeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...Southwest winds around 5 knots, becoming east in the afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 5 seconds. A chance of thunderstorms. Showers, mainly in the morning. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .TUESDAY...Southwest winds around 5 knots, becoming southeast in the afternoon. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .WEDNESDAY...South winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$