Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
082 FZUS54 KLCH 301747 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1247 PM CDT Sat Aug 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- 1247 PM CDT Sat Aug 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... Scattered showers and storms will continue across the coastal waters today ahead of a meandering frontal boundary that is currently near I-10. This front will slide toward the coast later today into tomorrow, before eventually moving through the coastal waters Sun into Mon. It will continue to serve as a focus for storm development Sunday through Monday as it does so. Winds will turn offshore today through the middle of next week as the frontal boundary moves off the coast and into the Gulf waters. $$ GMZ430-310600- Sabine Lake- 1247 PM CDT Sat Aug 30 2025 .TONIGHT...East winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY...Northeast winds around 5 knots. Lake waters smooth. A chance of thunderstorms. A chance of showers. .SUNDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A chance of showers. .MONDAY...Northeast winds around 5 knots. Lake waters smooth. A chance of thunderstorms in the morning. Showers likely. Thunderstorms likely in the afternoon. .MONDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. Showers likely with a chance of thunderstorms early in the evening, then a chance of showers with a slight chance of thunderstorms in the late evening and overnight. .TUESDAY...Northeast winds around 5 knots. Lake waters smooth. A chance of showers. A slight chance of thunderstorms until late afternoon, then a chance of thunderstorms late. .TUESDAY NIGHT...Northeast winds around 5 knots, becoming northwest after midnight. Lake waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers late in the evening. .WEDNESDAY...Northwest winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...North winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms early in the evening. .THURSDAY...Northeast winds around 5 knots. Lake waters smooth. .THURSDAY NIGHT...Southeast winds around 5 knots, becoming northwest after midnight. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ432-310600- Calcasieu Lake- 1247 PM CDT Sat Aug 30 2025 .TONIGHT...Northeast winds around 5 knots. Lake waters smooth. Thunderstorms likely with a chance of showers early this evening. A chance of showers and thunderstorms late. .SUNDAY...East winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A chance of showers. A slight chance of thunderstorms until early morning, then a chance of thunderstorms late. .MONDAY...Northeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A chance of showers. A chance of thunderstorms, mainly in the evening. .TUESDAY...Northeast winds around 5 knots. Lake waters smooth. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .TUESDAY NIGHT...Northeast winds around 5 knots, becoming north after midnight. Lake waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers in the late evening and overnight. .WEDNESDAY...Northwest winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northwest winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms early in the evening. .THURSDAY...North winds around 5 knots. Lake waters smooth. .THURSDAY NIGHT...West winds around 5 knots, becoming north after midnight. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ435-310600- Vermilion and West Cote Blanche Bays- 1247 PM CDT Sat Aug 30 2025 .TONIGHT...Northeast winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms early this evening, then a slight chance of showers and thunderstorms late this evening. A slight chance of showers and thunderstorms late. .SUNDAY...East winds 5 to 10 knots. Bay waters light chop. A slight chance of thunderstorms in the morning. A chance of showers. A chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .MONDAY...East winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .MONDAY NIGHT...East winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .TUESDAY...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .TUESDAY NIGHT...East winds around 5 knots. Bay waters smooth. A chance of thunderstorms early in the evening. A chance of showers until early morning. A slight chance of showers and thunderstorms late. .WEDNESDAY...Northwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms. .WEDNESDAY NIGHT...Northwest winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms early in the evening. .THURSDAY...North winds around 5 knots. Bay waters smooth. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ436-310600- Atchafalaya and East Cote Blanche Bays- 1247 PM CDT Sat Aug 30 2025 .TONIGHT...Northeast winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms early this evening, then a slight chance of showers and thunderstorms late this evening. A chance of showers with a slight chance of thunderstorms late. .SUNDAY...Northeast 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. .SUNDAY NIGHT...Northeast winds around 5 knots, becoming east after midnight. Bay waters light chop. A chance of showers. .MONDAY...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. .MONDAY NIGHT...East winds around 5 knots. Bay waters smooth. A chance of thunderstorms. Showers likely early in the evening, then a chance of showers in the late evening and overnight. .TUESDAY...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .TUESDAY NIGHT...East winds around 5 knots. Bay waters smooth. A chance of showers. A chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .WEDNESDAY...Northwest winds around 5 knots. Bay waters smooth. A slight chance of thunderstorms in the morning. A chance of showers. A chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of thunderstorms late in the evening. A slight chance of showers in the late evening and overnight. .THURSDAY...Northwest winds around 5 knots. Bay waters smooth. A slight chance of showers early in the morning. .THURSDAY NIGHT...Northwest winds around 5 knots. Bay waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ450-310600- Coastal waters from Cameron LA to High Island TX out 20 NM- 1247 PM CDT Sat Aug 30 2025 .TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds and southwest 1 foot at 4 seconds. A chance of showers and thunderstorms early this evening, then a slight chance of showers and thunderstorms late this evening. A chance of showers and thunderstorms after midnight. .SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers. .MONDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of thunderstorms. Showers likely until late afternoon, then a chance of showers late. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. .TUESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .TUESDAY NIGHT...Northeast winds 5 to 10 knots, becoming north after midnight. Seas 1 foot or less. A slight chance of thunderstorms early in the evening. A chance of showers. .WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers in the morning. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers. .THURSDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. .THURSDAY NIGHT...South winds 5 to 10 knots, becoming northwest after midnight. Seas 1 foot or less. Winds and seas higher in and near thunderstorms. $$ GMZ452-310600- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1247 PM CDT Sat Aug 30 2025 .TONIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 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 and early morning. A chance of showers and thunderstorms late. .SUNDAY...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. .SUNDAY NIGHT...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. .MONDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...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 in the evening, then showers likely after midnight. .TUESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. A chance of thunderstorms. Showers likely early in the morning, then a chance of showers in the late morning and afternoon. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers. A chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of thunderstorms. A chance of showers early in the morning, then a slight chance of showers in the late morning and afternoon. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. .THURSDAY...North winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers early in the morning. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Winds and seas higher in and near thunderstorms. $$ GMZ455-310600- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1247 PM CDT Sat Aug 30 2025 .TONIGHT...Northeast winds around 5 knots. Seas 1 foot or less. 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. .SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 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. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 2 seconds. Showers likely with a chance of thunderstorms. .TUESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers. A chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of thunderstorms. A chance of showers until late afternoon, then a slight chance of showers late. .WEDNESDAY NIGHT...Northwest 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. .THURSDAY...North winds 5 to 10 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 in the late morning and early afternoon. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers 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- 1247 PM CDT Sat Aug 30 2025 .TONIGHT...Southeast winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms this evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...Southeast winds around 5 knots, becoming north in the afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds and southwest 1 foot at 4 seconds. Showers and thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. Wave Detail: Northeast 1 foot at 3 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...Northeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave Detail: East 1 foot at 3 seconds. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the 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 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and southeast 1 foot at 6 seconds. Showers likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. A slight chance of thunderstorms early in the evening. A chance of showers. .WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. A chance of showers early in the morning, then a slight chance of showers in the late morning and early afternoon. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers. .THURSDAY...North winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the morning. .THURSDAY NIGHT...Southeast winds 5 to 10 knots, becoming southwest after midnight. Seas 1 foot or less. Winds and seas higher in and near thunderstorms. $$ GMZ472-310600- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1247 PM CDT Sat Aug 30 2025 .TONIGHT...East winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms this evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY 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. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...East winds around 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave Detail: East 1 foot at 3 seconds. Showers likely with a chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. Wave Detail: East 1 foot at 3 seconds and southeast 1 foot at 6 seconds. A chance of thunderstorms. .TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds and southeast 1 foot at 5 seconds. Showers likely with a chance of thunderstorms until late afternoon, then a chance of showers with a slight chance of thunderstorms late. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. A chance of showers. A slight chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .WEDNESDAY...North winds around 10 knots. Seas 1 foot or less. A slight chance of thunderstorms. A chance of showers until late afternoon, then a slight chance of showers late. .WEDNESDAY NIGHT...Northwest 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...North winds 5 to 10 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 in the late morning and early afternoon. .THURSDAY NIGHT...Northwest winds 5 to 10 knots, becoming west after midnight. Seas 1 foot or less. A slight 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- 1247 PM CDT Sat Aug 30 2025 .TONIGHT...Northeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds and southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms this evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds and southeast 1 foot at 4 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. Showers with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. .MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Showers with thunderstorms likely early in the evening, then showers with a chance of thunderstorms in the late evening and overnight. .TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and southeast 1 foot at 5 seconds. A chance of thunderstorms. Showers, mainly in the morning. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms early in the evening. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. .WEDNESDAY...North winds 5 to 10 knots. Seas around 2 feet. A slight chance of thunderstorms. Showers likely early in the morning, then a chance of showers in the late morning and afternoon. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of thunderstorms. .THURSDAY...North winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms until late afternoon, then a slight chance of showers late. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers early in the evening. A slight chance of showers after midnight. A slight chance of thunderstorms late. Winds and seas higher in and near thunderstorms. $$