305 FZUS54 KLCH 311745 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1245 PM CDT Sun Aug 31 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. GMZ400-010600- 1245 PM CDT Sun Aug 31 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… A stationary front draped along the coast will be the focus for showers and storms through the next few days as it slowly meanders south through the coastal waters. Winds will be mainly E to NE through the next couple of days, before becoming more W to NW Wed through Fri. Rain chances taper off Wed, with dry conditions expected through the second half of the week. $$ GMZ430-010600- Sabine Lake- 1245 PM CDT Sun Aug 31 2025 .TONIGHT…Northeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms early this evening. A slight chance of showers and thunderstorms after midnight, then a chance of showers and thunderstorms late. .MONDAY…East winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT…East winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms. .TUESDAY…Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth. A slight chance of thunderstorms in the morning. A chance of showers. A chance of thunderstorms in the afternoon. .TUESDAY NIGHT…Southwest winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms early in the evening. .WEDNESDAY…Northwest winds around 5 knots. Lake waters smooth. A slight chance of showers early in the afternoon. A slight chance of showers and thunderstorms late. .WEDNESDAY NIGHT…West winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms early in the evening. .THURSDAY…Northwest winds around 5 knots, becoming west around 5 knots in the afternoon. Lake waters smooth. .THURSDAY NIGHT…Southwest winds around 5 knots. Lake waters smooth. .FRIDAY…Southwest winds around 5 knots. Lake waters smooth. .FRIDAY NIGHT…South winds around 5 knots. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ432-010600- Calcasieu Lake- 1245 PM CDT Sun Aug 31 2025 .TONIGHT…Northeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms early this evening. A slight chance of showers and thunderstorms after midnight. .MONDAY…East winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms until late afternoon, then a chance of showers and thunderstorms late. .MONDAY NIGHT…East winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms. .TUESDAY…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. .TUESDAY NIGHT…South winds around 5 knots, becoming west after midnight. Lake waters smooth. A chance of showers and thunderstorms early in the evening. A slight chance of showers after midnight. A slight chance of thunderstorms late. .WEDNESDAY…Northwest winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms. .WEDNESDAY NIGHT…West winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms early in the evening. .THURSDAY…Northwest winds around 5 knots, becoming west in the afternoon. Lake waters smooth. .THURSDAY NIGHT…Southwest winds around 5 knots. Lake waters smooth. .FRIDAY…Southwest winds around 5 knots. Lake waters smooth. .FRIDAY NIGHT…South winds around 5 knots. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ435-010600- Vermilion and West Cote Blanche Bays- 1245 PM CDT Sun Aug 31 2025 .TONIGHT…East winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms early this evening. .MONDAY…East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the late morning and afternoon. .MONDAY NIGHT…East winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms, mainly in the evening. .TUESDAY…East winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT…Southeast winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms in the late evening and overnight. .WEDNESDAY…North winds around 5 knots, becoming west in the afternoon. Bay waters smooth. A slight chance of showers and thunderstorms. .WEDNESDAY NIGHT…West winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms early in the evening. .THURSDAY…West winds around 5 knots. Bay waters smooth. .THURSDAY NIGHT…Southwest winds around 5 knots. Bay waters smooth. .FRIDAY…Southwest winds around 5 knots. Bay waters smooth. .FRIDAY NIGHT…South winds 5 to 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ436-010600- Atchafalaya and East Cote Blanche Bays- 1245 PM CDT Sun Aug 31 2025 .TONIGHT…East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms early this evening. A slight chance of showers after midnight. .MONDAY…East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms until late afternoon, then a chance of showers and thunderstorms late. .MONDAY NIGHT…East winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms, mainly in the evening. .TUESDAY…East winds around 5 knots. Bay waters smooth. A chance of showers. A slight chance of thunderstorms early in the morning, then a chance of thunderstorms in the late morning and afternoon. .TUESDAY NIGHT…East winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms in the late evening and overnight. .WEDNESDAY…North winds around 5 knots, becoming west around 5 knots 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. .WEDNESDAY NIGHT…Southwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms in the late evening and overnight. .THURSDAY…Northwest winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms early in the morning. .THURSDAY NIGHT…Southwest winds around 5 knots. Bay waters smooth. .FRIDAY…West winds around 5 knots. Bay waters smooth. .FRIDAY NIGHT…South winds around 5 knots. Bay waters smooth. A slight chance of showers late. Winds and waves higher in and near thunderstorms. $$ GMZ450-010600- Coastal waters from Cameron LA to High Island TX out 20 NM- 1245 PM CDT Sun Aug 31 2025 .TONIGHT…East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. .MONDAY…East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of thunderstorms. A chance of showers until late afternoon, then a slight chance of showers late. .MONDAY NIGHT…East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. .TUESDAY…East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 1 foot at 3 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .TUESDAY NIGHT…Southeast winds around 5 knots, becoming southwest after midnight. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds and east 1 foot at 4 seconds. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms after midnight. .WEDNESDAY…Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds and southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms until late afternoon. .WEDNESDAY NIGHT…West winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers late. .THURSDAY…Northwest winds 5 to 10 knots, becoming west in the afternoon. Seas 1 foot or less. .THURSDAY NIGHT…South winds 5 to 10 knots. Seas 1 foot or less. .FRIDAY…Southwest winds 5 to 10 knots. Seas 1 foot or less. .FRIDAY NIGHT…South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-010600- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1245 PM CDT Sun Aug 31 2025 .TONIGHT…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. .MONDAY…East winds around 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT…East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. .TUESDAY…East winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds. A chance of showers and thunderstorms. .TUESDAY NIGHT…Southeast winds around 5 knots, becoming southwest after midnight. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. .WEDNESDAY…Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds and northwest 1 foot at 3 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .WEDNESDAY NIGHT…West winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers. A slight chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .THURSDAY…Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms early in the morning. .THURSDAY NIGHT…Southwest winds 5 to 10 knots. Seas 1 foot or less. .FRIDAY…Southwest winds 5 to 10 knots. Seas 1 foot or less. .FRIDAY NIGHT…South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-010600- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1245 PM CDT Sun Aug 31 2025 .TONIGHT…East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. A chance of showers. A chance of thunderstorms, mainly this evening. .MONDAY…East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers. A slight chance of thunderstorms early in the morning, then a chance of thunderstorms in the late morning and afternoon. .MONDAY NIGHT…East winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .TUESDAY…East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds. A chance of showers and thunderstorms. .TUESDAY NIGHT…East winds around 5 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 2 seconds. A chance of showers. .WEDNESDAY…Northwest winds around 5 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .WEDNESDAY NIGHT…West winds around 5 knots. Seas 1 foot or less. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .THURSDAY…Northwest winds around 5 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms early in the morning, then a slight chance of showers and thunderstorms late in the morning. .THURSDAY NIGHT…Southwest winds around 5 knots. Seas 1 foot or less. .FRIDAY…West winds around 5 knots. Seas 1 foot or less. .FRIDAY NIGHT…South winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-010600- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1245 PM CDT Sun Aug 31 2025 .TONIGHT…East winds around 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds. A slight chance of showers and thunderstorms early this evening, then a chance of showers and thunderstorms late this evening and early morning. Showers and thunderstorms likely late. .MONDAY…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. Showers and thunderstorms likely, mainly in the morning. .MONDAY NIGHT…East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 1 foot at 4 seconds. A chance of showers and thunderstorms. .TUESDAY…East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .TUESDAY NIGHT…East winds 5 to 10 knots, becoming south after midnight. Seas around 2 feet in the evening, then 1 foot or less. Wave Detail: East 2 feet at 4 seconds. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers after midnight. A slight chance of thunderstorms late. .WEDNESDAY…Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds and east 1 foot at 5 seconds. A chance of showers and thunderstorms until late afternoon. .WEDNESDAY NIGHT…Southwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers after midnight. .THURSDAY…Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers early in the morning, then a slight chance of showers and thunderstorms late in the morning. .THURSDAY NIGHT…South winds 5 to 10 knots. Seas 1 foot or less. .FRIDAY…South winds 5 to 10 knots. Seas 1 foot or less. .FRIDAY NIGHT…South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-010600- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1245 PM CDT Sun Aug 31 2025 .TONIGHT…East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds. A chance of showers this evening. A chance of thunderstorms. Showers likely after midnight. .MONDAY…East winds around 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT…East winds around 10 knots. Seas around 2 feet. Wave Detail: East 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers until early morning, then showers likely late. .TUESDAY…East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .TUESDAY NIGHT…Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. A slight chance of thunderstorms. .WEDNESDAY…Northwest winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: Northeast 1 foot at 4 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .WEDNESDAY NIGHT…Southwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .THURSDAY…Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms until late afternoon. .THURSDAY NIGHT…Southwest winds 5 to 10 knots. Seas 1 foot or less. .FRIDAY…Southwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers. A slight chance of thunderstorms late. .FRIDAY NIGHT…South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-010600- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1245 PM CDT Sun Aug 31 2025 .TONIGHT…East winds 10 to 15 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: East 1 foot at 4 seconds. A chance of showers and thunderstorms. .MONDAY…East winds around 10 knots. Seas around 2 feet. Wave Detail: East 1 foot at 4 seconds. A chance of showers and thunderstorms. .MONDAY NIGHT…East winds 10 to 15 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A chance of showers in the evening. A chance of thunderstorms. Showers likely after midnight. .TUESDAY…East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds and southeast 1 foot at 8 seconds. A chance of thunderstorms. Showers likely until late afternoon, then a chance of showers late. .TUESDAY NIGHT…East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .WEDNESDAY…North winds 5 to 10 knots. Seas around 2 feet. Wave Detail: North 1 foot at 4 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .WEDNESDAY NIGHT…Southwest winds around 5 knots. Seas 1 foot or less. A slight chance of thunderstorms early in the evening. A slight chance of showers in the evening. A chance of showers with a slight chance of thunderstorms after midnight. .THURSDAY…Northwest winds 5 to 10 knots. Seas 1 foot or less. A chance of showers in the morning. A slight chance of thunderstorms until late afternoon. A slight chance of showers in the afternoon. .THURSDAY NIGHT…Southwest winds around 5 knots. Seas 1 foot or less. .FRIDAY…Southwest winds around 5 knots, becoming southeast in the afternoon. Seas 1 foot or less. A slight chance of showers. A slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT…Southeast winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$
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