Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
238 FZUS54 KLCH 171836 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1236 PM CST Mon Nov 17 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. GMZ400-180700- 1236 PM CST Mon Nov 17 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. $$ GMZ430-180700- Sabine Lake- 1236 PM CST Mon Nov 17 2025 .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. .TUESDAY...South winds 5 to 10 knots. Lake waters light chop. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Lake waters light chop. .THURSDAY...Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Lake waters rough. A chance of showers with a slight chance of thunderstorms in the afternoon. .THURSDAY NIGHT...Southeast winds 15 to 20 knots, becoming south 10 to 15 knots after midnight. Lake waters rough. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. .FRIDAY...South winds around 10 knots. Lake waters light chop. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots, becoming west after midnight. Lake waters light chop. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...North winds 5 to 10 knots, becoming east in the afternoon. Lake waters light chop. A slight chance of showers. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming east after midnight. Lake waters light chop. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$ GMZ432-180700- Calcasieu Lake- 1236 PM CST Mon Nov 17 2025 .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. Patchy fog late this evening and overnight. .TUESDAY...South winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Lake waters choppy. Patchy fog in the morning. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY...Southeast winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Lake waters light chop. .THURSDAY...Southeast winds 10 to 15 knots, increasing to 20 to 25 knots in the afternoon. Lake waters very rough. A chance of showers with a slight chance of thunderstorms in the afternoon. .THURSDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to 25 knots. Lake waters rough. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...South winds 10 to 15 knots. Lake waters choppy. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots, becoming southwest after midnight. Lake waters light chop. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...North winds 5 to 10 knots, becoming west in the afternoon. Lake waters light chop. A slight chance of showers. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming east after midnight. Lake waters light chop. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$ GMZ435-180700- Vermilion and West Cote Blanche Bays- 1236 PM CST Mon Nov 17 2025 .TONIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. .TUESDAY...Southeast winds 5 to 10 knots. Bay waters light chop. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Bay waters light chop. .THURSDAY...Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Bay waters rough. A slight chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 15 to 20 knots, becoming south 10 to 15 knots after midnight. Bay waters rough. A slight chance of thunderstorms in the evening. A chance of showers. .FRIDAY...South winds 10 to 15 knots. Bay waters choppy. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming east after midnight. Bay waters light chop. A slight chance of showers after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-180700- Atchafalaya and East Cote Blanche Bays- 1236 PM CST Mon Nov 17 2025 .TONIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. .TUESDAY...Southeast winds 5 to 10 knots. Bay waters light chop. .TUESDAY NIGHT...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 with gusts up to 20 knots in the afternoon. Bay waters choppy. A slight chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters choppy. A slight chance of thunderstorms in the evening. A chance of showers. .FRIDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers. .SATURDAY 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. $$ GMZ450-180700- Coastal waters from Cameron LA to High Island TX out 20 NM- 1236 PM CST Mon Nov 17 2025 .TONIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .TUESDAY...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers after midnight. .THURSDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .THURSDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 4 feet. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds around 10 knots, becoming southwest after midnight. Seas around 2 feet. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...North winds 10 to 15 knots, becoming east in the afternoon. Seas around 2 feet. A chance of showers, mainly in the morning. .SATURDAY NIGHT...Southeast winds around 10 knots, becoming east after midnight. Seas around 2 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ452-180700- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1236 PM CST Mon Nov 17 2025 .TONIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. .TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds. .THURSDAY...Southeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms in the afternoon. .THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas 2 to 4 feet. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .FRIDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...Northwest winds around 10 knots, becoming southwest in the afternoon. Seas 2 to 3 feet. A slight chance of showers and thunderstorms. .SATURDAY NIGHT...Southeast winds 10 to 15 knots, becoming east after midnight. Seas 2 to 3 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ455-180700- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1236 PM CST Mon Nov 17 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Southeast 1 foot at 3 seconds. .TUESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 2 seconds. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at 2 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. .WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 2 seconds. .THURSDAY...Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 3 seconds. A slight chance of showers in the afternoon. .THURSDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. A slight chance of thunderstorms in the evening. A chance of showers. .FRIDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. A slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. .SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming east after midnight. Seas around 2 feet. A slight chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-180700- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1236 PM CST Mon Nov 17 2025 .TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. .TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. .TUESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 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 with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .THURSDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 4 feet. A slight chance of thunderstorms in the evening. A chance of showers. .FRIDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet. A chance of showers with a slight chance of thunderstorms. .SATURDAY...North winds 10 to 15 knots, becoming northeast 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 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ472-180700- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1236 PM CST Mon Nov 17 2025 .TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 5 seconds. .TUESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. .WEDNESDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. .THURSDAY...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms in the afternoon. .THURSDAY NIGHT...South winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. A slight chance of thunderstorms in the evening. A chance of showers. .FRIDAY...South winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...West winds 10 to 15 knots, becoming east in the afternoon. Seas 2 to 3 feet. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ475-180700- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1236 PM CST Mon Nov 17 2025 .TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. .TUESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. .TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. .WEDNESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. .WEDNESDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 5 seconds. .THURSDAY...Southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms in the afternoon. .THURSDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. A slight chance of thunderstorms in the evening. Showers likely. .FRIDAY...South winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. A chance of showers. A slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SATURDAY...South winds 10 to 15 knots. Seas around 3 feet. A chance of showers, mainly in the morning. .SATURDAY 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. $$