Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
812 FZUS54 KLCH 190552 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1252 AM CDT Tue Aug 19 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. GMZ400-191800- 1252 AM CDT Tue Aug 19 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 weak pressure pattern will be found over the northwest Gulf for the next few days. This will bring about light and variable winds along with low seas. There will be a chance for showers and thunderstorms during the late night and early morning period then again late in the afternoon. A trough will move toward the coast from the north on Thursday increasing chances for showers and thunderstorms during any time of day. $$ GMZ430-191800- Sabine Lake- 1252 AM CDT Tue Aug 19 2025 .TODAY...Northeast winds around 5 knots, becoming southeast around 5 knots late. Lake waters smooth. A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. .TONIGHT...South winds around 5 knots, becoming west after midnight. Lake waters smooth. A chance of showers and thunderstorms, mainly in the evening. .WEDNESDAY...Northwest winds around 5 knots, becoming northeast around 5 knots in the afternoon. Lake waters smooth. A slight chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .WEDNESDAY NIGHT...Northwest winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .THURSDAY...North winds around 5 knots, becoming east around 5 knots in the afternoon. Lake waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .THURSDAY NIGHT...West winds around 5 knots in the evening, becoming light and variable. Lake waters smooth. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...North winds around 5 knots, becoming east around 5 knots in the afternoon. Lake waters smooth. Showers likely with a chance of thunderstorms. .FRIDAY NIGHT...South winds around 5 knots in the evening, becoming light and variable. Lake waters smooth. A slight chance of thunderstorms. A chance of showers. .SATURDAY...North winds around 5 knots, becoming east around 5 knots in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds around 5 knots, becoming west around 5 knots after midnight. Lake waters smooth. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ432-191800- Calcasieu Lake- 1252 AM CDT Tue Aug 19 2025 .TODAY...Northeast winds around 5 knots, becoming southeast late. Lake waters smooth. A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. .TONIGHT...South winds around 5 knots, becoming west after midnight. Lake waters smooth. A chance of showers and thunderstorms, mainly in the evening. .WEDNESDAY...North 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. .WEDNESDAY NIGHT...Northwest winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .THURSDAY...North winds around 5 knots, becoming west in the afternoon. Lake waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .THURSDAY NIGHT...West winds around 5 knots, becoming north after midnight. Lake waters smooth. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...North winds around 5 knots, becoming southeast in the afternoon. Lake waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .FRIDAY NIGHT...South winds around 5 knots, becoming west after midnight. Lake waters smooth. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...North winds around 5 knots, becoming east in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds around 5 knots, becoming west after midnight. Lake waters smooth. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ435-191800- Vermilion and West Cote Blanche Bays- 1252 AM CDT Tue Aug 19 2025 .TODAY...Northeast winds around 5 knots, becoming south around 5 knots late. Bay waters smooth. A slight chance of showers and thunderstorms early this morning. A chance of showers and thunderstorms this afternoon. .TONIGHT...South winds around 5 knots, becoming northwest after midnight. Bay waters smooth. A chance of showers and thunderstorms in the evening. .WEDNESDAY...North winds around 5 knots, becoming west in the afternoon. Bay waters smooth. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds around 5 knots, becoming northwest after midnight. Bay waters smooth. A chance of showers and thunderstorms. .THURSDAY...North winds around 5 knots, becoming southwest in the afternoon. Bay waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .THURSDAY NIGHT...West winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .FRIDAY...North winds around 5 knots, becoming southwest around 5 knots in the afternoon. Bay waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .FRIDAY NIGHT...Southwest winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Northwest winds around 5 knots, becoming southwest in the afternoon. Bay waters smooth. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .SATURDAY NIGHT...Southwest winds around 5 knots, becoming west after midnight. Bay waters smooth. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-191800- Atchafalaya and East Cote Blanche Bays- 1252 AM CDT Tue Aug 19 2025 .TODAY...Northeast winds around 5 knots, becoming south around 5 knots this afternoon. Bay waters smooth. A slight chance of showers and thunderstorms late this morning. A chance of showers and thunderstorms this afternoon. .TONIGHT...South winds around 5 knots, becoming north after midnight. Bay waters smooth. A chance of showers and thunderstorms in the evening. .WEDNESDAY...North winds around 5 knots, becoming west in the afternoon. Bay waters smooth. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds around 5 knots, becoming northwest around 5 knots after midnight. Bay waters smooth. A chance of showers and thunderstorms. .THURSDAY...North winds around 5 knots, becoming southwest in the afternoon. Bay waters smooth. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .THURSDAY NIGHT...Southwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .FRIDAY...West winds around 5 knots. Bay waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .FRIDAY NIGHT...Southwest 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. .SATURDAY...West winds around 5 knots. Bay waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SATURDAY NIGHT...Southwest 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. Winds and waves higher in and near thunderstorms. $$ GMZ450-191800- Coastal waters from Cameron LA to High Island TX out 20 NM- 1252 AM CDT Tue Aug 19 2025 .TODAY...Northeast winds 5 to 10 knots, becoming southeast late. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. A chance of showers and thunderstorms. .TONIGHT...South winds around 5 knots, becoming west after midnight. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 2 seconds. A chance of showers and thunderstorms. .WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 2 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .THURSDAY...North winds 5 to 10 knots, becoming southwest in the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds. Showers likely with a chance of thunderstorms. .THURSDAY NIGHT...South winds around 5 knots, becoming west after midnight. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 2 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...North winds around 5 knots, becoming east in the afternoon. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .FRIDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...North winds around 5 knots, becoming east in the afternoon. Seas 1 foot or less. A chance of showers and thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-191800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1252 AM CDT Tue Aug 19 2025 .TODAY...Northeast winds around 5 knots, becoming south late. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. A chance of showers. A slight chance of thunderstorms early this morning, then a chance of thunderstorms late this morning and afternoon. .TONIGHT...South winds around 5 knots, becoming west after midnight. Seas 1 foot or less. A chance of showers and thunderstorms, mainly in the evening. .WEDNESDAY...North winds 5 to 10 knots, becoming west in the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...West winds 5 to 10 knots, becoming northwest after midnight. Seas 1 foot or less. Wave Detail: West 1 foot at 2 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .THURSDAY...North winds 5 to 10 knots, becoming west in the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .THURSDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 2 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...Northwest winds around 5 knots, becoming southwest in the afternoon. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .FRIDAY 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. .SATURDAY...Northwest winds around 5 knots, becoming east in the afternoon. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .SATURDAY NIGHT...Southwest 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. $$ GMZ455-191800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1252 AM CDT Tue Aug 19 2025 .TODAY...Northeast winds around 5 knots, becoming south late. Seas 1 foot or less. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...South winds around 5 knots, becoming northwest after midnight. Seas 1 foot or less. A chance of showers and thunderstorms, mainly in the evening. .WEDNESDAY...North winds 5 to 10 knots, becoming northwest in the afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds around 5 knots, becoming northwest after midnight. Seas 1 foot or less. A chance of showers and thunderstorms. .THURSDAY...Northwest winds around 5 knots, becoming west in the afternoon. Seas 1 foot or less. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .THURSDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...West winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .SATURDAY...West winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .SATURDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-191800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1252 AM CDT Tue Aug 19 2025 .TODAY...Northeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Showers and thunderstorms likely, mainly this morning. .TONIGHT...Southeast winds around 5 knots, becoming southwest after midnight. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .WEDNESDAY...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. .WEDNESDAY NIGHT...Northwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .THURSDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 2 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...West winds around 5 knots, becoming north in the afternoon. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .FRIDAY 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. .SATURDAY...Northwest winds around 5 knots, becoming northeast in the afternoon. Seas 1 foot or less. Showers likely with a chance of thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .SATURDAY 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. $$ GMZ472-191800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1252 AM CDT Tue Aug 19 2025 .TODAY...Northeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. A chance of showers and thunderstorms. .TONIGHT...Southeast winds around 5 knots, becoming northwest after midnight. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms. .WEDNESDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds and east 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .WEDNESDAY NIGHT...Southwest winds around 5 knots, becoming northwest after midnight. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .THURSDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds. Showers with thunderstorms likely in the morning, then a chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...West winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers, mainly in the morning. .FRIDAY 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. .SATURDAY...West winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .SATURDAY NIGHT...Southwest 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. $$ GMZ475-191800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1252 AM CDT Tue Aug 19 2025 .TODAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...East winds around 5 knots, becoming north after midnight. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms. .WEDNESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .WEDNESDAY NIGHT...Southeast winds around 5 knots, becoming west after midnight. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .THURSDAY...Northwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 2 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 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. .FRIDAY...West winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers, mainly in the morning. .FRIDAY NIGHT...Southwest 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. .SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. A chance of thunderstorms. Showers, mainly in the morning. .SATURDAY NIGHT...Southwest 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. $$