Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
783 FZUS54 KLCH 181810 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1210 PM CST Tue Nov 18 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. GMZ400-190700- 1210 PM CST Tue Nov 18 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... A series of waves moving north of the region will bring about a prolonged period of variable pressure fields and onshore winds at a breezy to occasionally moderate flow. 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. $$ GMZ430-190700- Sabine Lake- 1210 PM CST Tue Nov 18 2025 .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. Patchy fog late. .WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. .THURSDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Lake waters choppy. A slight chance of showers in the morning, then a chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Lake waters choppy. A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight. .FRIDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers. .FRIDAY NIGHT...South winds 5 to 10 knots, becoming west after midnight. Lake waters light chop. A chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...Northwest winds around 5 knots. Lake waters smooth. A chance of showers. .SATURDAY NIGHT...North winds 5 to 10 knots. Lake waters light chop. A slight chance of showers. .SUNDAY...Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Lake waters light chop. A slight chance of showers in the morning, then a chance of showers in the afternoon. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ432-190700- Calcasieu Lake- 1210 PM CST Tue Nov 18 2025 .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. Patchy fog after midnight. .WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light chop. Patchy fog in the morning. .WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. .THURSDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Lake waters choppy. A slight chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots after midnight. Lake waters choppy. A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight. .FRIDAY...South winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Lake waters choppy. A slight chance of thunderstorms in the morning. A chance of showers. .FRIDAY NIGHT...South winds 5 to 10 knots, becoming southwest after midnight. Lake waters light chop. A chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots. Lake waters light chop. A chance of showers with a slight chance of thunderstorms. .SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming north after midnight. Lake waters light chop. A slight chance of showers after midnight. .SUNDAY...Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Lake waters light chop. A slight chance of showers. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$ GMZ435-190700- Vermilion and West Cote Blanche Bays- 1210 PM CST Tue Nov 18 2025 .TONIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. .THURSDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Bay waters choppy. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters choppy. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .FRIDAY...South winds 5 to 10 knots. Bay waters light chop. A slight chance of thunderstorms. Showers likely, mainly in the morning. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms. .SATURDAY NIGHT...West winds around 5 knots, becoming north after midnight. Bay waters smooth. .SUNDAY...Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Bay waters light chop. A slight chance of showers in the afternoon. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-190700- Atchafalaya and East Cote Blanche Bays- 1210 PM CST Tue Nov 18 2025 .TONIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY...Southeast winds around 5 knots. Bay waters smooth. .WEDNESDAY NIGHT...Southeast winds around 5 knots. Bay waters smooth. .THURSDAY...Southeast winds 5 to 10 knots. Bay waters light chop. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms after midnight. .FRIDAY...South winds 5 to 10 knots. Bay waters light chop. A slight chance of thunderstorms. Showers likely, mainly in the morning. .FRIDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms. .SATURDAY NIGHT...West winds around 5 knots, becoming north after midnight. Bay waters smooth. .SUNDAY...Northeast winds around 5 knots, becoming south in the afternoon. Bay waters smooth. A slight chance of showers in the afternoon. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ450-190700- Coastal waters from Cameron LA to High Island TX out 20 NM- 1210 PM CST Tue Nov 18 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .THURSDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of thunderstorms in the morning. A chance of showers. .FRIDAY NIGHT...South winds 5 to 10 knots, becoming southwest after midnight. Seas around 2 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .SATURDAY...Northwest winds 5 to 10 knots, becoming southwest in the afternoon. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. .SUNDAY...East winds around 10 knots. Seas around 2 feet. A slight chance of showers. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-190700- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1210 PM CST Tue Nov 18 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. Patchy fog late. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 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 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .SATURDAY NIGHT...West winds 5 to 10 knots, becoming northeast after midnight. Seas around 2 feet. A slight chance of showers after midnight. .SUNDAY...Northeast winds around 10 knots, becoming east in the afternoon. Seas around 2 feet. A slight chance of showers. .SUNDAY NIGHT...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 2 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ455-190700- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1210 PM CST Tue Nov 18 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at 2 seconds and south 1 foot at 5 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. .WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. .THURSDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Wave Detail: Southeast 1 foot at 2 seconds. .THURSDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds and southeast 1 foot at 3 seconds. A chance of showers. A slight chance of thunderstorms after midnight. .FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southwest winds around 5 knots. Seas 1 to 2 feet. A slight chance of showers. A slight chance of thunderstorms after midnight. .SATURDAY...Southwest winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the morning. .SATURDAY NIGHT...West winds around 5 knots, becoming north after midnight. Seas 1 foot or less. .SUNDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Seas 1 foot or less. A slight chance of showers in the afternoon. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ470-190700- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1210 PM CST Tue Nov 18 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 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 morning, then a 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 chance of showers with a slight chance of thunderstorms. .FRIDAY...South winds 5 to 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...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .SATURDAY...Northwest winds 5 to 10 knots, becoming north in the afternoon. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers. .SUNDAY...East winds around 10 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. Winds and seas higher in and near thunderstorms. $$ GMZ472-190700- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1210 PM CST Tue Nov 18 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. .THURSDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY...South winds 5 to 10 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers. A slight chance of thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. .SATURDAY NIGHT...West winds 5 to 10 knots, becoming northeast after midnight. Seas 2 to 3 feet. .SUNDAY...East winds around 10 knots. Seas around 2 feet. A slight chance of showers. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ475-190700- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1210 PM CST Tue Nov 18 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 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 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 7 seconds. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .FRIDAY...South winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers. A slight chance of thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers and thunderstorms in the morning. .SATURDAY NIGHT...West winds 5 to 10 knots, becoming north after midnight. Seas 2 to 3 feet. .SUNDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers in the afternoon. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$