FZUS54 KLCH 160809 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 309 AM CDT Thu Apr 16 2026 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. GMZ400-162100- 309 AM CDT Thu Apr 16 2026 .Synopsis for Lower Atchafalaya River LA to High Island TX out 60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote Blanche Bays... Surface high pressure will ridge across the northern Gulf from off the Florida coast through Saturday that will allow for a persistent southerly flow. The light to modest onshore flow will increase on Friday into Friday night with building seas as low pressure forms over the Plains. A cold front in forecast to move through on Saturday night with strong and gusty northerly winds along with building seas behind it. $$ GMZ430-162100- Sabine Lake- 309 AM CDT Thu Apr 16 2026 .TODAY...South winds 10 to 15 knots with gusts up to 20 knots. Lake waters choppy. .TONIGHT...South winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Lake waters choppy. .FRIDAY...South winds 10 to 15 knots. Lake waters choppy. .FRIDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy. .SATURDAY...South winds around 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...West winds 10 to 15 knots, becoming north 15 to 20 knots with gusts up to 25 knots after midnight. Lake waters rough. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. .SUNDAY...Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Lake waters very rough. .SUNDAY NIGHT...Northeast winds 10 to 15 knots. Lake waters choppy. .MONDAY...East winds 10 to 15 knots. Lake waters choppy. .MONDAY NIGHT...East winds 5 to 10 knots. Lake waters light chop. A slight chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ432-162100- Calcasieu Lake- 309 AM CDT Thu Apr 16 2026 .TODAY...South winds 10 to 15 knots with gusts up to 20 knots. Lake waters choppy. .TONIGHT...South winds 10 to 15 knots. Lake waters choppy. .FRIDAY...South winds 10 to 15 knots. Lake waters choppy. .FRIDAY NIGHT...South winds 10 to 15 knots. Lake waters choppy. .SATURDAY...South winds 10 to 15 knots. Lake waters choppy. .SATURDAY NIGHT...Southwest winds 10 to 15 knots, becoming north 15 to 20 knots with gusts up to 25 knots after midnight. Lake waters rough. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. .SUNDAY...Northeast winds 15 to 20 knots. Lake waters rough. A slight chance of showers in the morning. .SUNDAY NIGHT...Northeast winds 10 to 15 knots. Lake waters choppy. .MONDAY...East winds 10 to 15 knots. Lake waters choppy. .MONDAY NIGHT...East winds around 10 knots. Lake waters light chop. A slight chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ435-162100- Vermilion and West Cote Blanche Bays- 309 AM CDT Thu Apr 16 2026 .TODAY...South winds 5 to 10 knots. Bay waters light chop. .TONIGHT...South winds 5 to 10 knots. Bay waters light chop. .FRIDAY...South winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Bay waters choppy. .FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters choppy. .SATURDAY...South winds around 10 knots. Bay waters light chop. .SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming north 15 to 20 knots with gusts up to 25 knots after midnight. Bay waters rough. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .SUNDAY...Northeast winds 15 to 20 knots. Bay waters rough. A slight chance of showers and thunderstorms in the morning. .SUNDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters choppy. .MONDAY...Northeast winds 15 to 20 knots, becoming east 10 to 15 knots in the afternoon. Bay waters rough. .MONDAY NIGHT...East winds around 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ436-162100- Atchafalaya and East Cote Blanche Bays- 309 AM CDT Thu Apr 16 2026 .TODAY...South winds 5 to 10 knots. Bay waters light chop. .TONIGHT...South winds 5 to 10 knots. Bay waters light chop. .FRIDAY...South winds 5 to 10 knots. Bay waters light chop. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. .SATURDAY...South winds 5 to 10 knots. Bay waters light chop. .SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming northwest 10 to 15 knots with gusts up to 20 knots after midnight. Bay waters choppy. A chance of showers with a slight chance of thunderstorms after midnight. .SUNDAY...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Bay waters rough. A slight chance of showers and thunderstorms in the morning. .SUNDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters choppy. .MONDAY...East winds 10 to 15 knots. Bay waters choppy. .MONDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ450-162100- Coastal waters from Cameron LA to High Island TX out 20 NM- 309 AM CDT Thu Apr 16 2026 .TODAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. .FRIDAY...South winds around 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 4 seconds. .FRIDAY NIGHT...South winds 15 to 20 knots. Seas around 3 feet. Wave Detail: South 3 feet at 4 seconds. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A slight chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...South winds 10 to 15 knots, becoming north 20 to 25 knots with gusts up to 30 knots after midnight. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet at 4 seconds and south 2 feet at 5 seconds. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. .SUNDAY...Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers in the morning. .SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. .MONDAY...East winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers in the afternoon. .MONDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 4 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ452-162100- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 309 AM CDT Thu Apr 16 2026 .TODAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .TONIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 4 seconds. .FRIDAY NIGHT...South winds around 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 4 seconds. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. .SATURDAY NIGHT...South winds 5 to 10 knots, becoming north 20 to 25 knots with gusts up to 30 knots after midnight. Seas 2 to 4 feet. Wave Detail: North 2 feet at 3 seconds and south 2 feet at 5 seconds. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers and thunderstorms in the morning. .SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 2 to 4 feet. .MONDAY...East winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. .MONDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet. A slight chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-162100- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 309 AM CDT Thu Apr 16 2026 .TODAY...South winds 5 to 10 knots. Seas around 2 feet. .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. .FRIDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 2 seconds. .FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 2 seconds. .SATURDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .SATURDAY NIGHT...South winds 5 to 10 knots, becoming northwest 10 to 15 knots with gusts up to 20 knots after midnight. Seas 1 to 2 feet. Wave Detail: West 2 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms after midnight. .SUNDAY...Northeast winds 15 to 20 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms in the morning. .SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to 3 feet. .MONDAY...East winds 15 to 20 knots. Seas 2 to 3 feet. .MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-162100- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 309 AM CDT Thu Apr 16 2026 .TODAY...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 6 seconds. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. .FRIDAY...Southeast winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. .FRIDAY NIGHT...South winds around 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 6 seconds. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming north 20 to 25 knots with gusts up to 30 knots after midnight. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet at 4 seconds and south 3 feet at 6 seconds. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds 25 to 30 knots, diminishing to 20 to 25 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers, mainly in the morning. .SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of showers in the evening. .MONDAY...East winds 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of showers in the afternoon. .MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-162100- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 309 AM CDT Thu Apr 16 2026 .TODAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. .TONIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. .FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. .SATURDAY NIGHT...South winds 5 to 10 knots, becoming north 15 to 20 knots with gusts up to 30 knots after midnight. Seas 2 to 3 feet. Wave Detail: North 2 feet at 3 seconds and southeast 2 feet at 6 seconds. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SUNDAY...Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. A chance of showers with a slight chance of thunderstorms in the morning. .SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. .MONDAY...East winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. .MONDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ475-162100- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 309 AM CDT Thu Apr 16 2026 .TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. .TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. .FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. .SATURDAY...South winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. .SATURDAY NIGHT...South winds 5 to 10 knots, becoming northwest 10 to 15 knots with gusts up to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. A chance of showers with a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. .SUNDAY NIGHT...Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet. .MONDAY...East winds 20 to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. .MONDAY NIGHT...East winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 5 to 7 feet, occasionally to 9 feet. A slight chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$