Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
838 FZUS54 KLCH 100509 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1209 AM CDT Sun Aug 10 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. GMZ400-101800- 1209 AM CDT Sun Aug 10 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... Winds and waves will remain light, with winds less than 10 knots and waves between 1 and 3 feet. Afternoon showers and thunderstorms are expected each day this week, with higher winds and waves near thunderstorms. $$ GMZ430-101800- Sabine Lake- 1209 AM CDT Sun Aug 10 2025 .TODAY...East winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .TONIGHT...Southeast winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .MONDAY...Northeast winds around 5 knots, becoming east in the afternoon. Lake waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .MONDAY NIGHT...Southeast winds around 5 knots in the evening, becoming light and variable. Lake waters smooth. A chance of showers and thunderstorms, mainly in the evening. .TUESDAY...Northwest winds around 5 knots, becoming south in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .TUESDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of showers. A slight chance of thunderstorms after midnight. .WEDNESDAY...West winds around 5 knots, becoming south in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms after midnight. .THURSDAY...Southwest winds around 5 knots, becoming south in the afternoon. Lake waters light chop. A chance of showers and thunderstorms. .THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ432-101800- Calcasieu Lake- 1209 AM CDT Sun Aug 10 2025 .TODAY...East winds 5 to 10 knots, becoming southeast late. Lake waters light chop. A chance of showers and thunderstorms. .TONIGHT...Southeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .MONDAY...Northeast winds around 5 knots, becoming east in the afternoon. Lake waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .MONDAY NIGHT...South winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .TUESDAY...North winds around 5 knots, becoming south in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .TUESDAY NIGHT...South winds around 5 knots. Lake waters smooth. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. .WEDNESDAY...West winds around 5 knots, becoming south around 5 knots in the afternoon. Lake waters smooth. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .THURSDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ435-101800- Vermilion and West Cote Blanche Bays- 1209 AM CDT Sun Aug 10 2025 .TODAY...East winds 5 to 10 knots. Bay waters light chop. Showers and thunderstorms likely. .TONIGHT...East winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .MONDAY...East winds around 5 knots. Bay waters smooth. Showers and thunderstorms. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .TUESDAY...North winds around 5 knots, becoming south in the afternoon. Bay waters smooth. Showers and thunderstorms likely. .TUESDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .WEDNESDAY...South winds around 5 knots. Bay waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms. .THURSDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ436-101800- Atchafalaya and East Cote Blanche Bays- 1209 AM CDT Sun Aug 10 2025 .TODAY...East winds 5 to 10 knots. Bay waters light chop. Showers likely with a chance of thunderstorms early this morning, then showers and thunderstorms likely late this morning and afternoon. .TONIGHT...East winds around 5 knots. Bay waters smooth. A chance of showers. Thunderstorms likely, mainly in the evening. .MONDAY...East winds around 5 knots. Bay waters smooth. Showers and thunderstorms likely. .MONDAY NIGHT...South winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .TUESDAY...Southwest winds around 5 knots, becoming south around 5 knots in the afternoon. Bay waters smooth. Showers and thunderstorms likely. .TUESDAY NIGHT...South 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. .WEDNESDAY...South winds around 5 knots. Bay waters smooth. Showers likely with a chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .WEDNESDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms. .THURSDAY...Southwest winds around 5 knots. Bay waters smooth. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .THURSDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ450-101800- Coastal waters from Cameron LA to High Island TX out 20 NM- 1209 AM CDT Sun Aug 10 2025 .TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 1 foot at 4 seconds. Showers and thunderstorms likely early this morning, then a chance of showers and thunderstorms late this morning and early afternoon. A slight chance of showers and thunderstorms late. .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .MONDAY...Northeast winds around 5 knots, becoming east in the afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .MONDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A chance of showers and thunderstorms. .TUESDAY...Northwest winds around 5 knots, becoming south in the afternoon. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. A chance of showers and thunderstorms. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: South 1 foot at 4 seconds. A chance of showers with a slight chance of thunderstorms after midnight. .WEDNESDAY...Southwest winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. A chance of showers and thunderstorms, mainly in the morning. .WEDNESDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. .THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .THURSDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-101800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1209 AM CDT Sun Aug 10 2025 .TODAY...East winds 5 to 10 knots. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: East 1 foot at 4 seconds, becoming east 1 foot at 3 seconds. Showers and thunderstorms likely early this morning, then a chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of thunderstorms. A chance of showers. .MONDAY...Northeast winds around 5 knots, becoming southeast in the afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. A chance of showers and thunderstorms. .TUESDAY...West winds around 5 knots, becoming south in the afternoon. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .TUESDAY 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 and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .WEDNESDAY...Southwest winds around 5 knots, becoming south in the afternoon. Seas around 2 feet in the morning, then 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-101800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1209 AM CDT Sun Aug 10 2025 .TODAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. Showers and thunderstorms likely, mainly this morning. .TONIGHT...East winds around 5 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A chance of showers and thunderstorms. .MONDAY...East winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .TUESDAY...West winds around 5 knots, becoming south in the afternoon. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .TUESDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .WEDNESDAY...South winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. .THURSDAY...South winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-101800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1209 AM CDT Sun Aug 10 2025 .TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 1 foot at 4 seconds. Showers and thunderstorms likely, mainly this morning. .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .MONDAY...Northwest winds around 5 knots, becoming east in the afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .TUESDAY...West winds around 5 knots, becoming southeast in the afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds and southwest 1 foot at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Southeast 1 foot at 4 seconds, becoming south 2 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms after midnight. .WEDNESDAY...Southwest winds 5 to 10 knots, becoming south in the afternoon. Seas around 2 feet. A chance of showers and thunderstorms, mainly in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .THURSDAY...South winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms, mainly in the morning. .THURSDAY NIGHT...South winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-101800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1209 AM CDT Sun Aug 10 2025 .TODAY...East winds 5 to 10 knots. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: East 2 feet at 4 seconds, becoming east 1 foot at 4 seconds. Showers and thunderstorms likely this morning, then a chance of showers and thunderstorms early this afternoon. A slight chance of showers and thunderstorms late. .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .MONDAY...Northeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .TUESDAY...West winds around 5 knots, becoming south in the afternoon. Seas 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .TUESDAY NIGHT...South winds around 5 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Southeast 1 foot at 4 seconds, becoming south 2 feet at 5 seconds. A chance of showers and thunderstorms after midnight. .WEDNESDAY...Southwest winds around 5 knots, becoming south in the afternoon. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. .THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-101800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1209 AM CDT Sun Aug 10 2025 .TODAY...East winds 5 to 10 knots. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: East 2 feet at 4 seconds, becoming east 1 foot at 5 seconds. Showers with thunderstorms likely this morning, then a chance of showers and thunderstorms early this afternoon. A slight chance of showers and thunderstorms late. .TONIGHT...East winds around 5 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .MONDAY...Northeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. Showers and thunderstorms likely, mainly in the morning. .MONDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 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. .TUESDAY...Southwest winds around 5 knots, becoming south in the afternoon. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. Showers with thunderstorms likely in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 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. .WEDNESDAY...South winds around 5 knots. Seas 1 foot or less, then around 2 feet in the afternoon. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A chance of showers and thunderstorms after midnight. .THURSDAY...South winds around 5 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$