Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
962 FZUS54 KLCH 230521 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1221 AM CDT Tue Sep 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- 1221 AM CDT Tue Sep 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... Outside of convection winds and seas will be light and low. The light onshore flow will persist into late Wednesday or early Thursday until a cold front moves into the coastal waters. By Thursday afternoon, winds will be from the north with gusts close to 20 knots. $$ GMZ430-231800- Sabine Lake- 1221 AM CDT Tue Sep 23 2025 .TODAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers this morning. A chance of thunderstorms. Showers likely this afternoon. .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .WEDNESDAY NIGHT...West winds 5 to 10 knots. Lake waters light chop. Showers. Thunderstorms likely, mainly in the evening. .THURSDAY...Northwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. Showers until late afternoon, then a chance of showers late. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms early in the evening. .FRIDAY...North winds 5 to 10 knots. Lake waters light chop. .FRIDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. .SATURDAY...Northeast winds around 5 knots. Lake waters smooth. .SATURDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ432-231800- Calcasieu Lake- 1221 AM CDT Tue Sep 23 2025 .TODAY...South winds 5 to 10 knots. Lake waters light chop. 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 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms early in the evening. .WEDNESDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .WEDNESDAY NIGHT...West winds 5 to 10 knots. Lake waters light chop. Showers and thunderstorms likely in the evening, then showers with a chance of thunderstorms after midnight. .THURSDAY...Northwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. Showers until late afternoon, then a chance of showers late. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms early in the evening. A slight chance of thunderstorms late in the evening. A slight chance of showers in the late evening and early morning. .FRIDAY...North winds 5 to 10 knots. Lake waters light chop. .FRIDAY NIGHT...North winds around 5 knots. Lake waters smooth. .SATURDAY...Northeast winds around 5 knots. Lake waters smooth. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ435-231800- Vermilion and West Cote Blanche Bays- 1221 AM CDT Tue Sep 23 2025 .TODAY...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms early this morning. A chance of showers and thunderstorms early this afternoon, then a slight chance of showers and thunderstorms late. .TONIGHT...South winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms late in the morning. A chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .THURSDAY...Northwest winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. Showers likely. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters light chop. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. .FRIDAY...North winds 5 to 10 knots. Bay waters light chop. A slight chance of showers early in the morning. .FRIDAY NIGHT...North winds 5 to 10 knots. Bay waters light chop. .SATURDAY...North winds 5 to 10 knots. Bay waters light chop. .SATURDAY NIGHT...North winds 5 to 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ436-231800- Atchafalaya and East Cote Blanche Bays- 1221 AM CDT Tue Sep 23 2025 .TODAY...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms early this morning. A slight chance of showers and thunderstorms this afternoon. .TONIGHT...South winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms late in the morning. A chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .THURSDAY...West winds 5 to 10 knots. Bay waters light chop. Showers likely with a chance of thunderstorms until late afternoon, then showers and thunderstorms likely late. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters light chop. A chance of showers. .FRIDAY...Northwest winds 5 to 10 knots. Bay waters light chop. A chance of showers early in the morning. A slight chance of showers in the late morning and afternoon. A slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...North winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms early in the evening. .SATURDAY...North winds 5 to 10 knots. Bay waters light chop. .SATURDAY NIGHT...North winds around 5 knots, increasing to 5 to 10 knots after midnight. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ450-231800- Coastal waters from Cameron LA to High Island TX out 20 NM- 1221 AM CDT Tue Sep 23 2025 .TODAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms. .TONIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A slight chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers in the morning. A chance of thunderstorms. Showers likely in the afternoon. .WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. Showers with thunderstorms likely until early morning, then showers with a chance of thunderstorms late. .THURSDAY...Northwest winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas around 2 feet. Wave Detail: Northwest 2 feet at 3 seconds and south 1 foot at 4 seconds. A chance of thunderstorms. Showers until late afternoon, then a chance of showers late. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northwest 2 feet at 3 seconds and south 1 foot at 4 seconds. A chance of showers with a slight chance of thunderstorms early in the evening, then a slight chance of showers and thunderstorms in the late evening and early morning. .FRIDAY...North winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. .SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Winds and seas higher in and near thunderstorms. $$ GMZ452-231800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1221 AM CDT Tue Sep 23 2025 .TODAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms. .TONIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms late. .WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers in the morning. A chance of thunderstorms. Showers likely in the afternoon. .WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. Showers with a chance of thunderstorms until early morning, then showers with thunderstorms likely late. .THURSDAY...Northwest winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. Showers with thunderstorms likely in the morning, then a chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...Northwest winds 10 to 15 knots. Seas around 2 feet. Wave Detail: West 2 feet at 4 seconds and south 1 foot at 4 seconds. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. .FRIDAY...North winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas around 2 feet in the morning, then 1 foot or less. A slight chance of showers in the morning. .FRIDAY NIGHT...North winds 5 to 10 knots. Seas 1 foot or less. .SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Winds and seas higher in and near thunderstorms. $$ GMZ455-231800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1221 AM CDT Tue Sep 23 2025 .TODAY...South winds 5 to 10 knots. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: South 1 foot at 3 seconds. A slight chance of showers and thunderstorms early this morning. A slight chance of showers and thunderstorms early this afternoon. .TONIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 2 seconds. .WEDNESDAY...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. A chance of showers. A slight chance of thunderstorms late in the morning. A chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 2 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .THURSDAY...West winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: West 1 foot at 3 seconds. A chance of thunderstorms. Showers. .THURSDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. Showers likely in the evening. A chance of thunderstorms. A chance of showers after midnight. .FRIDAY...North winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms early in the morning, then a slight chance of showers in the late morning and afternoon. .FRIDAY NIGHT...North winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers early in the evening. .SATURDAY...North winds 5 to 10 knots. Seas 1 foot or less. .SATURDAY NIGHT...North winds 5 to 10 knots. Seas 1 foot or less. Winds and seas higher in and near thunderstorms. $$ GMZ470-231800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1221 AM CDT Tue Sep 23 2025 .TODAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers and thunderstorms. .TONIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the evening. A slight chance of showers and thunderstorms late. .WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers in the morning. A chance of thunderstorms. Showers likely in the afternoon. .WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms. Showers. .THURSDAY...Northwest winds around 10 knots. Seas around 2 feet. Wave Detail: Northwest 2 feet at 4 seconds and south 2 feet at 5 seconds. A chance of thunderstorms. Showers until late afternoon, then a chance of showers late. .THURSDAY NIGHT...Northwest winds around 10 knots. Seas around 2 feet. Wave Detail: Northwest 2 feet at 3 seconds and south 1 foot at 5 seconds. A slight chance of thunderstorms. A chance of showers until early morning, then a slight chance of showers late. .FRIDAY...North winds 5 to 10 knots. Seas around 2 feet. A slight chance of thunderstorms early in the morning. A slight chance of showers. .FRIDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers in the evening. .SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. Winds and seas higher in and near thunderstorms. $$ GMZ472-231800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1221 AM CDT Tue Sep 23 2025 .TODAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers and thunderstorms. .TONIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers late. .WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers. A slight chance of thunderstorms early in the morning, then a chance of thunderstorms in the late morning and afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .THURSDAY...Northwest winds around 10 knots. Seas around 2 feet. Wave Detail: West 2 feet at 4 seconds and south 2 feet at 5 seconds. A chance of thunderstorms. Showers. .THURSDAY NIGHT...Northwest winds around 10 knots. Seas around 2 feet. Wave Detail: Northwest 2 feet at 4 seconds and south 1 foot at 5 seconds. A chance of showers. A chance of thunderstorms, mainly in the evening. .FRIDAY...North winds around 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms early in the morning, then a slight chance of showers in the late morning and afternoon. .FRIDAY NIGHT...North winds around 10 knots. Seas around 2 feet. A slight chance of showers. .SATURDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-231800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1221 AM CDT Tue Sep 23 2025 .TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms early this morning, then a slight chance of showers and thunderstorms late this morning and early afternoon. .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .WEDNESDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers in the morning. A slight chance of thunderstorms late in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of thunderstorms in the evening. A chance of showers. A chance of thunderstorms after midnight. .THURSDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms. Showers. .THURSDAY NIGHT...Northwest winds around 10 knots. Seas around 2 feet. Wave Detail: West 2 feet at 4 seconds and south 1 foot at 4 seconds. Showers with a chance of thunderstorms until early morning, then showers likely with a slight chance of thunderstorms late. .FRIDAY...North winds 5 to 10 knots. Seas around 2 feet. A slight chance of thunderstorms early in the morning. A chance of showers. .FRIDAY NIGHT...North winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. .SATURDAY...North winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers until late afternoon. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Winds and seas higher in and near thunderstorms. $$