Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
101 FZUS54 KLCH 230541 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1241 AM CDT Sat Aug 23 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. GMZ400-231800- 1241 AM CDT Sat Aug 23 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... Nocturnal thunderstorms will be possible each morning during the period. Light and VRB winds can be anticipated this weekend into early next week, but an onshore flow will return by late next week. $$ GMZ430-231800- Sabine Lake- 1241 AM CDT Sat Aug 23 2025 .TODAY...Northeast winds around 5 knots. Lake waters smooth. A chance of thunderstorms. Showers likely early this morning, then a chance of showers late this morning and afternoon. .TONIGHT...South winds around 5 knots, becoming northwest after midnight. Lake waters smooth. A chance of showers and thunderstorms early in the evening. .SUNDAY...Northeast winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms. .SUNDAY NIGHT...South winds around 5 knots, becoming west after midnight. Lake waters smooth. A slight chance of showers and thunderstorms early in the evening. .MONDAY...Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth. .MONDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of showers after midnight. A slight chance of showers and thunderstorms late. .TUESDAY...Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .TUESDAY NIGHT...East winds around 5 knots. Lake waters smooth. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .WEDNESDAY...East winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms in the late evening and overnight. Winds and waves higher in and near thunderstorms. $$ GMZ432-231800- Calcasieu Lake- 1241 AM CDT Sat Aug 23 2025 .TODAY...Northeast winds around 5 knots. Lake waters smooth. A chance of thunderstorms. Showers likely early this morning, then a chance of showers late this morning and afternoon. .TONIGHT...North winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms late. .SUNDAY...Northeast winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms. .SUNDAY NIGHT...South winds around 5 knots, becoming northwest after midnight. Lake waters smooth. A slight chance of showers and thunderstorms early in the evening. .MONDAY...Northeast winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth. .MONDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of showers after midnight. A slight chance of showers and thunderstorms late. .TUESDAY...East winds around 5 knots, becoming southeast in the afternoon. 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...East winds 5 to 10 knots. Lake waters light chop. 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...Northeast winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds around 5 knots. Lake 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. Winds and waves higher in and near thunderstorms. $$ GMZ435-231800- Vermilion and West Cote Blanche Bays- 1241 AM CDT Sat Aug 23 2025 .TODAY...North winds around 5 knots, becoming northwest this afternoon. Bay waters smooth. A chance of thunderstorms this morning. Showers likely. Thunderstorms likely this afternoon. .TONIGHT...West winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms after midnight. .SUNDAY...North winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms early in the morning, then a chance of showers and thunderstorms late in the morning. A slight chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...West winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms early in the evening. .MONDAY...North winds 5 to 10 knots, becoming southeast in the afternoon. Bay waters light chop. A slight chance of showers and thunderstorms in the late morning and afternoon. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers after midnight. A slight chance of thunderstorms late. .TUESDAY...Northeast 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. .TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming northeast after midnight. Bay waters light chop. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. .WEDNESDAY...East winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms in the late evening and overnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-231800- Atchafalaya and East Cote Blanche Bays- 1241 AM CDT Sat Aug 23 2025 .TODAY...North winds around 5 knots, becoming west around 5 knots this afternoon. Bay waters smooth. A chance of thunderstorms this morning. Showers likely. Thunderstorms likely this afternoon. .TONIGHT...Southwest winds around 5 knots, becoming west after midnight. Bay waters smooth. A chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms in the late evening and early morning, then a chance of showers and thunderstorms late. .SUNDAY...Northwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .SUNDAY NIGHT...West winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms early in the evening. A slight chance of showers after midnight. .MONDAY...North winds around 5 knots, becoming southwest around 5 knots in the afternoon. Bay waters smooth. A slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers after midnight. A slight chance of thunderstorms late. .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...Southeast winds around 5 knots, becoming east after midnight. Bay waters light chop. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. .WEDNESDAY...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .WEDNESDAY 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. Winds and waves higher in and near thunderstorms. $$ GMZ450-231800- Coastal waters from Cameron LA to High Island TX out 20 NM- 1241 AM CDT Sat Aug 23 2025 .TODAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Showers with thunderstorms likely early this morning, then a chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...South winds around 5 knots, becoming west after midnight. Seas 1 foot or less. Wave Detail: East 1 foot at 2 seconds. A chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms in the late evening and overnight. .SUNDAY...North winds 5 to 10 knots, becoming east in the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds. A chance of showers and thunderstorms until late afternoon. .SUNDAY NIGHT...South winds around 5 knots, becoming west after midnight. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. A slight chance of showers after midnight. A slight chance of showers and thunderstorms late. .MONDAY...North winds 5 to 10 knots, becoming southeast in the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds and southeast 1 foot at 5 seconds. A slight chance of showers and thunderstorms until late afternoon. .MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A chance of showers after midnight. A chance of showers with a slight chance of thunderstorms late. .TUESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A chance of showers. .WEDNESDAY...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-231800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1241 AM CDT Sat Aug 23 2025 .TODAY...North winds around 5 knots. Seas 1 foot or less. Showers and thunderstorms likely early this morning, then a chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...West winds around 5 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 2 seconds. A slight chance of showers and thunderstorms until early morning, then a chance of showers and thunderstorms late. .SUNDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .SUNDAY NIGHT...West 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 early in the evening. A slight chance of showers after midnight. A slight chance of thunderstorms late. .MONDAY...North winds 5 to 10 knots, becoming southeast in the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds and southeast 1 foot at 5 seconds. A slight chance of showers and thunderstorms. .MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers in the evening. A chance of showers after midnight. A slight chance of thunderstorms late. .TUESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. 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...East winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms late in the evening. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-231800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1241 AM CDT Sat Aug 23 2025 .TODAY...Northwest winds around 5 knots. Seas 1 foot or less. Showers and thunderstorms likely early this morning, then a chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...West winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 2 seconds. A slight chance of showers and thunderstorms until early morning, then a chance of showers and thunderstorms late. .SUNDAY...Northwest winds around 5 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 2 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .SUNDAY NIGHT...West winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers after midnight, then a chance of showers with a slight chance of thunderstorms late. .MONDAY...North winds 5 to 10 knots, becoming west in the afternoon. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 2 seconds. A slight chance of showers in the evening. A slight chance of thunderstorms. A chance of showers after midnight. .TUESDAY...East winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms late in the evening. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-231800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1241 AM CDT Sat Aug 23 2025 .TODAY...North winds around 5 knots, becoming northeast this afternoon. Seas 1 foot or less. Showers with thunderstorms likely this morning, then a chance of showers and thunderstorms this afternoon. .TONIGHT...Southeast winds around 5 knots, becoming southwest after midnight. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds and south 1 foot at 2 seconds. A slight chance of thunderstorms early in the evening. A slight chance of showers until early morning. A chance of showers and thunderstorms late. .SUNDAY...North winds 5 to 10 knots, becoming east in the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .SUNDAY NIGHT...South winds around 5 knots, becoming southwest after midnight. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 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. .MONDAY...North winds 5 to 10 knots, becoming east in the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds and southeast 1 foot at 6 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 6 seconds. A slight chance of showers in the evening. A chance of showers after midnight. A slight chance of thunderstorms late. .TUESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .TUESDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. A chance of showers. .WEDNESDAY...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-231800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1241 AM CDT Sat Aug 23 2025 .TODAY...North winds around 5 knots. Seas 1 foot or less. Showers with thunderstorms likely this morning, then a chance of showers and thunderstorms this afternoon. .TONIGHT...West winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 2 seconds. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms after midnight, then a chance of showers and thunderstorms late. .SUNDAY...North winds around 5 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 2 seconds and southeast 1 foot at 4 seconds. Showers likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon. .SUNDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds and southeast 1 foot at 6 seconds. A slight chance of showers and thunderstorms early in the evening. A chance of showers after midnight. A slight chance of thunderstorms late. .MONDAY...North winds 5 to 10 knots, becoming east in the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds and south 1 foot at 5 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 6 seconds. A slight chance of showers in the evening, then a chance of showers after midnight. A slight chance of thunderstorms late. .TUESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...East winds around 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms late in the evening. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-231800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1241 AM CDT Sat Aug 23 2025 .TODAY...Northwest winds 5 to 10 knots, diminishing to around 5 knots this afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 2 seconds. Showers and thunderstorms likely, mainly this morning. .TONIGHT...West winds around 5 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. A slight chance of showers and thunderstorms until early morning, then a chance of showers and thunderstorms late. .SUNDAY...Northwest winds around 5 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds and south 1 foot at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...West winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds and south 1 foot at 6 seconds. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. .MONDAY...Northwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of showers. A chance of thunderstorms until late afternoon, then a slight chance of thunderstorms late. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds and south 1 foot at 6 seconds. A slight chance of thunderstorms early in the evening. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms late in the evening. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$