Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
551 FZUS54 KLCH 191909 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 109 PM CST Wed Nov 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. GMZ400-200800- 109 PM CST Wed Nov 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... Late in the work week, a deeply amplified weather system will be approaching from the west bringing about stronger onshore winds and periods of showers and thunderstorms. Winds and seas will gradually increase from early Thursday into Friday. Inland fog has been spilling over into area lakes and bays, thus a Marine Dense Fog advisory has been issued for Thursday morning. $$ GMZ430-200800- Sabine Lake- 109 PM CST Wed Nov 19 2025 ...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CST THURSDAY... .TONIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. Areas of dense fog after midnight. .THURSDAY...Southeast winds 10 to 15 knots. Lake waters choppy. Areas of dense fog in the morning. A slight chance of showers. .THURSDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Lake waters choppy. A chance of showers. A slight chance of thunderstorms after midnight. .FRIDAY...South winds 5 to 10 knots, becoming southwest 10 to 15 knots in the afternoon. Lake waters choppy. A slight chance of thunderstorms in the morning. A chance of showers. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of showers after midnight. .SATURDAY...North winds around 5 knots, becoming south in the afternoon. Lake waters smooth. A chance of showers with a slight chance of thunderstorms. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. A slight chance of showers. .SUNDAY...Southeast winds 5 to 10 knots. Lake waters light chop. A slight chance of showers in the morning, then a chance of showers in the afternoon. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters choppy. A slight chance of showers in the evening, then a chance of showers after midnight. .MONDAY...South winds 10 to 15 knots. Lake waters choppy. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest 10 to 15 knots after midnight. Lake waters rough. A chance of showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ432-200800- Calcasieu Lake- 109 PM CST Wed Nov 19 2025 ...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CST THURSDAY... .TONIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. Patchy fog late this evening. Areas of dense fog after midnight. .THURSDAY...Southeast winds 10 to 15 knots. Lake waters choppy. Areas of dense fog in the morning. .THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots. Lake waters choppy. A slight chance of thunderstorms in the evening. A chance of showers. .FRIDAY...South winds 10 to 15 knots. Lake waters choppy. A slight chance of thunderstorms in the morning. A chance of showers. .FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers after midnight. .SATURDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers with a slight chance of thunderstorms. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. A slight chance of showers after midnight. .SUNDAY...Southeast winds 5 to 10 knots. Lake waters light chop. A slight chance of showers. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Lake waters choppy. A slight chance of showers in the evening, then a chance of showers after midnight. .MONDAY...Southeast winds 10 to 15 knots, becoming south 15 to 20 knots in the afternoon. Lake waters rough. A chance of showers with a slight chance of thunderstorms. .MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest 10 to 15 knots after midnight. Lake waters rough. A chance of showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ435-200800- Vermilion and West Cote Blanche Bays- 109 PM CST Wed Nov 19 2025 ...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CST THURSDAY... .TONIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. Patchy fog after midnight. Areas of dense fog late. .THURSDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Bay waters choppy. Areas of dense fog in the morning. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters choppy. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. .FRIDAY...South winds 10 to 15 knots. Bay waters choppy. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers after midnight. .SATURDAY...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers. A slight chance of thunderstorms in the afternoon. .SATURDAY NIGHT...South winds around 5 knots. Bay waters smooth. .SUNDAY...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers in the afternoon. .SUNDAY NIGHT...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Bay waters choppy. A slight chance of showers. .MONDAY...Southeast winds 10 to 15 knots. Bay waters choppy. A chance of showers. A slight chance of thunderstorms in the afternoon. .MONDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy. A chance of showers. A slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-200800- Atchafalaya and East Cote Blanche Bays- 109 PM CST Wed Nov 19 2025 ...DENSE FOG ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CST THURSDAY... .TONIGHT...Southeast winds around 5 knots. Bay waters smooth. Patchy fog after midnight. .THURSDAY...Southeast winds 5 to 10 knots. Bay waters light chop. Patchy fog in the morning. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. A chance of showers. .FRIDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers after midnight. .SATURDAY...South winds around 5 knots. Bay waters smooth. A slight chance of showers. .SATURDAY NIGHT...Southeast winds around 5 knots. Bay waters smooth. .SUNDAY...Southeast winds 5 to 10 knots. Bay waters light chop. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers. .MONDAY...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .MONDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy. A chance of showers. A slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ450-200800- Coastal waters from Cameron LA to High Island TX out 20 NM- 109 PM CST Wed Nov 19 2025 .TONIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Patchy fog after midnight. .THURSDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of thunderstorms in the morning. A chance of showers. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers in the evening, then a chance of showers after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 6 seconds. A chance of showers with a slight chance of thunderstorms. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. .SUNDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. .MONDAY...South winds around 15 knots. Seas around 3 feet. A chance of showers. A slight chance of thunderstorms in the afternoon. .MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest after midnight. Seas 3 to 4 feet. A chance of showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-200800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 109 PM CST Wed Nov 19 2025 .TONIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. Patchy fog after midnight. .THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. Patchy fog in the morning. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. A slight chance of thunderstorms in the evening. Showers likely. .FRIDAY...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of showers after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 6 seconds. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. .SUNDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers in the evening, then a chance of showers after midnight. .MONDAY...Southeast winds 15 to 20 knots. Seas 2 to 4 feet. A chance of showers with a slight chance of thunderstorms. .MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest after midnight. Seas 2 to 4 feet. A slight chance of thunderstorms. A chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ455-200800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 109 PM CST Wed Nov 19 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 2 seconds. Patchy fog after midnight. .THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 2 seconds. Patchy dense fog in the morning. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 3 seconds. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. .FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 2 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .FRIDAY NIGHT...South winds around 5 knots. Seas 1 to 2 feet. Wave Detail: Southwest 1 foot at 4 seconds. A slight chance of showers after midnight. .SATURDAY...South winds around 5 knots. Seas 1 foot or less. A slight chance of showers. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. .SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers in the afternoon. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. .MONDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms. .MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-200800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 109 PM CST Wed Nov 19 2025 .TONIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. Patchy fog late. .THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of thunderstorms in the evening. A chance of showers. .FRIDAY...South winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 6 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. A slight chance of showers in the evening, then a chance of showers after midnight. .SATURDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers. .SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers. .MONDAY...South winds 15 to 20 knots. Seas 3 to 4 feet. A chance of showers. A slight chance of thunderstorms in the afternoon. .MONDAY NIGHT...South winds 15 to 20 knots, becoming southwest after midnight. Seas 4 to 5 feet, occasionally to 6 feet. A chance of showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-200800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 109 PM CST Wed Nov 19 2025 .TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. Patchy fog late. .THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. Patchy dense fog in the evening. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. .FRIDAY...South winds 10 to 15 knots, becoming southwest 5 to 10 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: South 4 feet at 6 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. A slight chance of showers. .SATURDAY...Southeast winds around 5 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. A slight chance of showers. A slight chance of thunderstorms in the afternoon. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers. .SUNDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A slight chance of showers. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers in the evening, then a chance of showers after midnight. .MONDAY...Southeast winds around 15 knots. Seas 3 to 4 feet. A chance of showers with a slight chance of thunderstorms. .MONDAY NIGHT...South winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ475-200800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 109 PM CST Wed Nov 19 2025 .TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. .THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 6 seconds. A slight chance of thunderstorms. Showers likely, mainly in the evening. .FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots, becoming southwest 5 to 10 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 7 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 7 seconds and southwest 1 foot at 4 seconds. A slight chance of showers. .SATURDAY...Southeast winds around 5 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. A slight chance of showers in the morning. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. .SUNDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A slight chance of showers in the afternoon. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 4 feet. A slight chance of showers. .MONDAY...Southeast winds around 15 knots. Seas 3 to 4 feet. A chance of showers with a slight chance of thunderstorms. .MONDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$