Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
167 FZUS54 KLCH 150553 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1253 AM CDT Tue Jul 15 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. GMZ400-151800- 1253 AM CDT Tue Jul 15 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... High pressure extending across the northern Gulf will maintain light onshore winds and low seas through tomorrow. The forecast through the second half of the week will be highly dependent on the potential tropical development in the eastern Gulf. Regardless of development, much higher precipitation chances and increasing winds and seas are expected Thursday through the end of the week/weekend. $$ GMZ430-151800- Sabine Lake- 1253 AM CDT Tue Jul 15 2025 .TODAY...Southwest winds around 5 knots, becoming south late. Lake waters light chop. A slight chance of showers and thunderstorms early this afternoon. .TONIGHT...Southwest winds 5 to 10 knots, diminishing to around 5 knots after midnight. Lake waters light chop. .WEDNESDAY...West winds around 5 knots, becoming south in the afternoon. Lake waters light chop. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. .THURSDAY...West winds around 5 knots, becoming southwest in the afternoon. Lake waters smooth. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .THURSDAY NIGHT...Southwest winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .FRIDAY...Southwest winds 5 to 10 knots. Lake waters light chop. Showers with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. .FRIDAY NIGHT...Southwest winds around 5 knots. Lake waters smooth. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. Showers likely, mainly in the morning. .SATURDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ432-151800- Calcasieu Lake- 1253 AM CDT Tue Jul 15 2025 .TODAY...Southwest winds around 5 knots, becoming south late. Lake waters light chop. A slight chance of showers and thunderstorms early this afternoon. .TONIGHT...Southwest winds 5 to 10 knots, diminishing to around 5 knots after midnight. Lake waters light chop. .WEDNESDAY...Northwest winds around 5 knots, becoming southwest in the afternoon. Lake waters light chop. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. .THURSDAY...Northwest winds around 5 knots, becoming southwest in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...Southwest winds 5 to 10 knots. Lake waters light chop. Showers. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of showers with a slight chance of thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. Showers likely. .SATURDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ435-151800- Vermilion and West Cote Blanche Bays- 1253 AM CDT Tue Jul 15 2025 .TODAY...West winds around 5 knots, becoming southwest this afternoon. Bay waters smooth. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning and early afternoon. A slight chance of showers and thunderstorms late. .TONIGHT...West winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY...Northwest winds around 5 knots. Bay waters smooth. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds around 5 knots, becoming west after midnight. Bay waters light chop. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .THURSDAY...Northwest winds 5 to 10 knots. Bay waters light chop. Showers and thunderstorms. .THURSDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. Showers. .FRIDAY...Southwest winds 5 to 10 knots. Bay waters light chop. Showers. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .FRIDAY NIGHT...Southwest winds around 10 knots. Bay waters light chop. A slight chance of thunderstorms. A chance of showers. .SATURDAY...Southwest winds 5 to 10 knots. Bay waters light chop. Showers with a chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SATURDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of showers with a slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-151800- Atchafalaya and East Cote Blanche Bays- 1253 AM CDT Tue Jul 15 2025 .TODAY...Northwest winds around 5 knots, becoming southwest late. Bay waters smooth. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning and early afternoon. A slight chance of showers and thunderstorms late. .TONIGHT...West winds around 5 knots. Bay waters smooth. .WEDNESDAY...Northwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds around 5 knots, becoming northwest after midnight. Bay waters smooth. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .THURSDAY...North winds 5 to 10 knots, becoming northwest in the afternoon. Bay waters light chop. Showers, thunderstorms. .THURSDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. Showers. .FRIDAY...Southwest winds 5 to 10 knots. Bay waters light chop. Showers with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Bay waters light chop. Showers with a chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SATURDAY NIGHT...Southwest winds around 5 knots. Bay waters smooth. A chance of showers with a slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ450-151800- Coastal waters from Cameron LA to High Island TX out 20 NM- 1253 AM CDT Tue Jul 15 2025 .TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms until late afternoon. .TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 5 seconds. .WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 5 seconds. A slight chance of showers after midnight. .THURSDAY...West winds 5 to 10 knots, becoming southwest in the afternoon. Seas around 2 feet. Wave Detail: South 1 foot at 5 seconds. A chance of showers and thunderstorms. .THURSDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .FRIDAY...Southwest winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .FRIDAY NIGHT...Southwest winds 10 to 15 knots. Seas around 2 feet. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .SATURDAY...Southwest winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-151800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1253 AM CDT Tue Jul 15 2025 .TODAY...Southwest winds 5 to 10 knots. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: Southwest 1 foot at 5 seconds, becoming south 1 foot at 5 seconds. A slight chance of showers and thunderstorms until late afternoon. .TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 5 seconds. .WEDNESDAY...Northwest winds 5 to 10 knots, becoming west in the afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 5 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: South 1 foot at 5 seconds. A chance of showers and thunderstorms after midnight. .THURSDAY...Northwest winds 5 to 10 knots, becoming west in the afternoon. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: Southwest 1 foot at 5 seconds. Showers and thunderstorms likely. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. .FRIDAY...Southwest winds around 10 knots. Seas around 2 feet. Showers with a chance of thunderstorms. .FRIDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .SATURDAY...Southwest winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers, mainly in the morning. .SATURDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-151800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1253 AM CDT Tue Jul 15 2025 .TODAY...West winds around 5 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning. A slight chance of showers and thunderstorms early this afternoon. .TONIGHT...West winds around 5 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. .WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .THURSDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds. Showers, thunderstorms. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds. A chance of thunderstorms. Showers. .FRIDAY...Southwest winds around 10 knots. Seas 1 foot or less. A chance of thunderstorms. Showers, mainly in the morning. .FRIDAY NIGHT...Southwest winds around 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. A chance of thunderstorms. Showers. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-151800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1253 AM CDT Tue Jul 15 2025 .TODAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms until late afternoon. .TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .WEDNESDAY...Southwest winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers and 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 showers and thunderstorms. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 5 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...Southwest winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-151800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1253 AM CDT Tue Jul 15 2025 .TODAY...Southwest winds 5 to 10 knots, becoming south this afternoon. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms until late afternoon. .TONIGHT...Southwest winds around 5 knots. Seas around 2 feet. Wave Detail: South 1 foot at 5 seconds. .WEDNESDAY...West winds around 5 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: South 1 foot at 5 seconds, becoming southwest 1 foot at 6 seconds. A chance of showers and thunderstorms, mainly in the morning. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: South 1 foot at 6 seconds. A chance of showers and thunderstorms after midnight. .THURSDAY...Northwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 5 seconds. Showers with thunderstorms likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. Wave Detail: South 1 foot at 5 seconds, becoming south 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. .FRIDAY...Southwest winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .FRIDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. A chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. 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 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-151800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1253 AM CDT Tue Jul 15 2025 .TODAY...West winds around 5 knots. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: Southwest 1 foot at 5 seconds. A slight chance of showers and thunderstorms early this morning, then a chance of showers and thunderstorms late this morning and early afternoon. .TONIGHT...West winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 5 seconds. .WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds and south 1 foot at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 5 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: West 1 foot at 4 seconds and south 1 foot at 5 seconds. Thunderstorms likely. Showers. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A chance of thunderstorms. Showers. .FRIDAY...Southwest winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers, mainly in the morning. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$