


Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
296 FZUS54 KLCH 081821 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 120 PM CDT Tue Jul 8 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. GMZ400-090700- 120 PM CDT Tue Jul 8 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... Weak surface high will continue to ridge across the northern Gulf and into the coastal waters this week. This will keep a mainly light southerly flow in place with relatively low seas. An upper level disturbance will allow for widespread showers and thunderstorms over the coastal waters late tonight into tomorrow morning. Then scattered showers or thunderstorms will be possible each day through the end of the week. $$ GMZ430-090700- Sabine Lake- 120 PM CDT Tue Jul 8 2025 .TONIGHT...Southwest winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms early this evening. A chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Lake waters light chop. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .THURSDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .FRIDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .SATURDAY...South winds 5 to 10 knots. Lake waters light chop. Showers likely with a chance of thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 5 knots, increasing to 5 to 10 knots in the afternoon. Lake waters light chop. Showers likely with a chance of thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ432-090700- Calcasieu Lake- 120 PM CDT Tue Jul 8 2025 .TONIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms early this evening. A chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .THURSDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .FRIDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .SATURDAY...South winds 5 to 10 knots. Lake waters light chop. Showers likely with a chance of thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Lake waters light chop. Showers likely with a chance of thunderstorms. .SUNDAY NIGHT...South 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. $$ GMZ435-090700- Vermilion and West Cote Blanche Bays- 120 PM CDT Tue Jul 8 2025 .TONIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms early this evening. A slight chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .THURSDAY...Southwest winds 5 to 10 knots. Bay waters light chop. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .FRIDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .SATURDAY...South winds 5 to 10 knots. Bay waters light chop. Showers likely with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. .SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 5 knots. Bay waters smooth. Showers likely with a chance of thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-090700- Atchafalaya and East Cote Blanche Bays- 120 PM CDT Tue Jul 8 2025 .TONIGHT...Southwest winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms early this evening. A slight chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .THURSDAY...Southwest winds 5 to 10 knots. Bay waters light chop. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of showers with a slight chance of thunderstorms after midnight. .FRIDAY...South 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. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .SATURDAY...South winds 5 to 10 knots. Bay waters light chop. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SATURDAY NIGHT...South winds around 5 knots. Bay waters smooth. A chance of showers with a slight chance of thunderstorms after midnight. .SUNDAY...South winds around 5 knots. Bay waters smooth. Showers likely with a chance of thunderstorms. .SUNDAY NIGHT...South 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. $$ GMZ450-090700- Coastal waters from Cameron LA to High Island TX out 20 NM- 120 PM CDT Tue Jul 8 2025 .TONIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds and south 1 foot at 6 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .THURSDAY...Southwest winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms after midnight. .FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .SATURDAY...South winds around 10 knots. Seas around 2 feet. Showers likely with a chance of thunderstorms. .SATURDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-090700- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 120 PM CDT Tue Jul 8 2025 .TONIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds. A chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 5 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds and south 1 foot at 6 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .THURSDAY...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...Southwest winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. .FRIDAY...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. Showers likely with a chance of thunderstorms. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .SATURDAY...South winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY 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. $$ GMZ455-090700- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 120 PM CDT Tue Jul 8 2025 .TONIGHT...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 5 seconds. A slight chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 5 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. A chance of showers and thunderstorms. .THURSDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Southwest 1 foot at 3 seconds. A chance of showers and thunderstorms after midnight. .FRIDAY...South winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds, becoming south 1 foot at 4 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .SATURDAY...South winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Showers likely with a chance of thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-090700- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 120 PM CDT Tue Jul 8 2025 .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. .THURSDAY...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms after midnight. .FRIDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...South winds around 10 knots. Seas 2 to 3 feet. A chance of thunderstorms. Showers. .SATURDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 10 knots. Seas 2 to 3 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-090700- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 120 PM CDT Tue Jul 8 2025 .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms late. .WEDNESDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds and southwest 1 foot at 3 seconds. A chance of showers and thunderstorms after midnight. .THURSDAY...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. .FRIDAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. Showers likely with a chance of thunderstorms. .FRIDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms after midnight. .SATURDAY...South winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .SATURDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-090700- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 120 PM CDT Tue Jul 8 2025 .TONIGHT...Southwest winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers after midnight. A slight chance of showers and thunderstorms late. .WEDNESDAY...Southwest winds around 5 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers and thunderstorms after midnight. .THURSDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms after midnight. .FRIDAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .FRIDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers, mainly in the morning. .SUNDAY 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. $$