Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
097 FZUS54 KLCH 301753 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1252 PM CDT Wed Jul 30 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. GMZ400-310600- 1252 PM CDT Wed Jul 30 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... Upper level weakness moving nearby will bring about scattered to numerous showers and thunderstorms later this afternoon and evening. Elevated rain chances over coastal waters will prevail over the coming days beneath lingering upper level weakness. Winds and seas will remain low, outside of stronger thunderstorms and thunderstorm clusters. $$ GMZ430-310600- Sabine Lake- 1252 PM CDT Wed Jul 30 2025 .TONIGHT...Southwest winds around 5 knots. Lake waters smooth. A chance of showers. .THURSDAY...Southwest winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. .FRIDAY...West winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .FRIDAY NIGHT...Southwest winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .SATURDAY...Northwest winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SATURDAY NIGHT...Southwest winds around 5 knots, becoming northwest after midnight. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY...North winds around 5 knots, becoming southwest around 5 knots in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY NIGHT...Southwest winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms after midnight. .MONDAY...Northwest winds around 5 knots, becoming south in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .MONDAY NIGHT...South winds around 5 knots. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ432-310600- Calcasieu Lake- 1252 PM CDT Wed Jul 30 2025 .TONIGHT...Southwest winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .THURSDAY...West winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .FRIDAY...West winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .FRIDAY NIGHT...West winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Northwest winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SATURDAY NIGHT...Northwest winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY...North winds around 5 knots, becoming west in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY NIGHT...Southwest winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .MONDAY...Northwest winds around 5 knots, becoming south in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .MONDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ435-310600- Vermilion and West Cote Blanche Bays- 1252 PM CDT Wed Jul 30 2025 .TONIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms early this evening, then a slight chance of showers and thunderstorms late this evening and early morning. A chance of showers and thunderstorms late. .THURSDAY...West winds 5 to 10 knots. Bay waters light chop. Showers and thunderstorms likely. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .FRIDAY...West winds 5 to 10 knots. Bay waters light chop. Showers and thunderstorms likely. .FRIDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .SATURDAY...Northwest winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SATURDAY NIGHT...Northwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .SUNDAY...Northwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SUNDAY NIGHT...Northwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .MONDAY...North winds around 5 knots, becoming south in the afternoon. Bay waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-310600- Atchafalaya and East Cote Blanche Bays- 1252 PM CDT Wed Jul 30 2025 .TONIGHT...Southwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms this evening, then a slight chance of showers and thunderstorms after midnight. A chance of showers and thunderstorms late. .THURSDAY...West winds 5 to 10 knots. Bay waters light chop. Showers and thunderstorms likely. .THURSDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms after midnight. .FRIDAY...West winds 5 to 10 knots. Bay waters light chop. Showers and thunderstorms likely. .FRIDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .SATURDAY...Northwest winds 5 to 10 knots. Bay waters light chop. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SATURDAY NIGHT...Northwest winds around 5 knots. Bay waters smooth. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northwest winds around 5 knots. Bay waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SUNDAY NIGHT...Northwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .MONDAY...North winds around 5 knots, becoming southwest in the afternoon. Bay waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .MONDAY 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. $$ GMZ450-310600- Coastal waters from Cameron LA to High Island TX out 20 NM- 1252 PM CDT Wed Jul 30 2025 .TONIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds. A chance of showers. .THURSDAY...West winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: Southwest 2 feet at 4 seconds, becoming southwest 1 foot at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .THURSDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds. A slight chance of showers and thunderstorms after midnight. .FRIDAY...West winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Northwest winds around 10 knots, becoming west in the afternoon. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: West 2 feet at 4 seconds, becoming southwest 1 foot at 4 seconds. A chance of showers and thunderstorms. .SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming west after midnight. Seas 1 foot or less. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northwest winds 5 to 10 knots, becoming southwest in the afternoon. Seas 1 foot or less. A chance of showers and thunderstorms. .SUNDAY NIGHT...Southwest 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. .MONDAY...West winds 5 to 10 knots, becoming south in the afternoon. Seas 1 foot or less. A chance of showers and thunderstorms. .MONDAY 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. $$ GMZ452-310600- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1252 PM CDT Wed Jul 30 2025 .TONIGHT...West winds around 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: West 1 foot at 4 seconds, becoming southwest 1 foot at 3 seconds. A chance of showers and thunderstorms this evening, then a slight chance of showers and thunderstorms after midnight. A chance of showers and thunderstorms late. .THURSDAY...West winds around 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: Southwest 2 feet at 4 seconds, becoming southwest 1 foot at 4 seconds. Showers and thunderstorms likely, mainly in the morning. .THURSDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A chance of showers and thunderstorms after midnight. .FRIDAY...West winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. Showers and thunderstorms likely, mainly in the morning. .FRIDAY NIGHT...West winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Northwest winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: West 2 feet at 4 seconds, becoming west 1 foot at 4 seconds. Showers and thunderstorms likely. .SATURDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...North winds 5 to 10 knots, becoming west in the afternoon. Seas 1 foot or less. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...West 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. .MONDAY...Northwest winds 5 to 10 knots, becoming southwest in the afternoon. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-310600- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1252 PM CDT Wed Jul 30 2025 .TONIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. A chance of showers and thunderstorms early this evening, then a slight chance of showers and thunderstorms late this evening and early morning. A chance of showers and thunderstorms late. .THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .THURSDAY NIGHT...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. .FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. Showers and thunderstorms likely. .SATURDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. .SUNDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Showers and thunderstorms likely. .SUNDAY NIGHT...West 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. .MONDAY...Northwest winds around 5 knots, becoming southwest in the afternoon. Seas 1 foot or less. Showers and thunderstorms likely, 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 a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-310600- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1252 PM CDT Wed Jul 30 2025 .TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: West 1 foot at 3 seconds and southeast 1 foot at 5 seconds, becoming southwest 2 feet at 3 seconds. A slight chance of thunderstorms this evening. A chance of showers. A chance of thunderstorms after midnight. .THURSDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .THURSDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A slight chance of showers and thunderstorms after midnight. .FRIDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .FRIDAY NIGHT...Southwest winds around 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers and thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: West 2 feet at 4 seconds, becoming west 1 foot at 4 seconds. Showers and thunderstorms likely, mainly in the morning. .SATURDAY NIGHT...West 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. .SUNDAY...Northwest winds around 10 knots, becoming west in the afternoon. Seas 1 foot or less. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. .MONDAY...West winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .MONDAY 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 after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-310600- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1252 PM CDT Wed Jul 30 2025 .TONIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds. A chance of showers and thunderstorms this evening. A slight chance of showers and thunderstorms after midnight, then a chance of showers and thunderstorms late. .THURSDAY...West winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: West 1 foot at 4 seconds. Showers and thunderstorms likely, mainly in the morning. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: West 1 foot at 4 seconds, becoming southwest 2 feet at 4 seconds. A slight chance of showers and thunderstorms after midnight. .FRIDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. Showers and thunderstorms likely, mainly in the morning. .FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Northwest winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: West 1 foot at 3 seconds, becoming west 1 foot at 4 seconds. Showers and thunderstorms likely, mainly in the morning. .SATURDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. .SUNDAY...Northwest winds around 10 knots, diminishing to around 5 knots in the afternoon. Seas 1 foot or less. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...West 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. .MONDAY...West winds 5 to 10 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-310600- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1252 PM CDT Wed Jul 30 2025 .TONIGHT...West winds around 5 knots, becoming southwest after midnight. Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds. A chance of showers and thunderstorms early this evening, then a slight chance of showers and thunderstorms late this evening. A chance of showers and thunderstorms after midnight. .THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds. A slight chance of showers and thunderstorms after midnight. .FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds. Showers and thunderstorms likely, mainly in the morning. .FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds. A chance of showers and thunderstorms after midnight. .SATURDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .SATURDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. .SUNDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Showers with thunderstorms likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...West 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. .MONDAY...West winds around 5 knots. Seas 1 foot or less. Showers and thunderstorms likely, 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 a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$