Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
626 FZUS54 KLCH 271811 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 110 PM CDT Wed Aug 27 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. GMZ400-280700- 110 PM CDT Wed Aug 27 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... light onshore winds will prevail into early Friday. A front slides south Friday into Saturday which should bring about widespread shower and thunderstorm activity. The boundary lingers over the coastal zones through the start of the work week resulting in a wet end to August. $$ GMZ430-280700- Sabine Lake- 110 PM CDT Wed Aug 27 2025 .TONIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms, mainly this evening. .THURSDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. .THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .FRIDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .FRIDAY NIGHT...South winds around 5 knots. Lake waters smooth. Thunderstorms likely in the evening. Showers likely. A chance of thunderstorms after midnight. .SATURDAY...North winds around 5 knots, becoming southwest in the afternoon. Lake waters smooth. Showers and thunderstorms likely. .SATURDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. Showers likely with a chance of thunderstorms early in the evening, then a chance of showers with a slight chance of thunderstorms in the late evening and overnight. .SUNDAY...Northeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .MONDAY...Northeast winds 5 to 10 knots. Lake waters light chop. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .MONDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers in the late evening and early morning. Winds and waves higher in and near thunderstorms. $$ GMZ432-280700- Calcasieu Lake- 110 PM CDT Wed Aug 27 2025 .TONIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms this evening. A slight chance of showers and thunderstorms after midnight. .THURSDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers. A slight chance of thunderstorms early in the morning, then a chance of thunderstorms in the late morning and afternoon. .THURSDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .FRIDAY...Southwest winds 5 to 10 knots. Lake waters light chop. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .FRIDAY NIGHT...Southeast winds 5 to 10 knots. Lake waters light chop. Thunderstorms likely in the evening. Showers likely. A chance of thunderstorms after midnight. .SATURDAY...North winds 5 to 10 knots. Lake waters light chop. Showers and thunderstorms likely. .SATURDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A chance of showers. A chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .SUNDAY...North winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. .MONDAY...Northeast winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers in the late evening and overnight. Winds and waves higher in and near thunderstorms. $$ GMZ435-280700- Vermilion and West Cote Blanche Bays- 110 PM CDT Wed Aug 27 2025 .TONIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms early this evening. A slight chance of showers and thunderstorms after midnight. .THURSDAY...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers after midnight. A slight chance of showers and thunderstorms late. .FRIDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms early in the morning, then a chance of thunderstorms in the late morning and afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...Northwest winds 5 to 10 knots. Bay waters light chop. Showers likely. .SATURDAY NIGHT...North winds 5 to 10 knots. Bay waters light chop. A chance of showers. A chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .SUNDAY...North winds 5 to 10 knots. Bay waters light chop. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms early in the evening, then a slight chance of showers late in the evening. A chance of showers with a slight chance of thunderstorms after midnight. .MONDAY...North winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and early morning. A slight chance of showers in the late evening and overnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-280700- Atchafalaya and East Cote Blanche Bays- 110 PM CDT Wed Aug 27 2025 .TONIGHT...Southeast winds 5 to 10 knots, diminishing to around 5 knots after midnight. Bay waters light chop. A slight chance of showers. A chance of thunderstorms early this evening, then a slight chance of thunderstorms late this evening and overnight. .THURSDAY...Southeast winds around 5 knots, becoming south in the afternoon. Bay waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms early in the afternoon. A slight chance of showers and thunderstorms late. .THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers after midnight. A slight chance of showers and thunderstorms late. .FRIDAY...South winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms early in the morning, then a chance of thunderstorms in the late morning and afternoon. .FRIDAY NIGHT...South winds around 5 knots, increasing to 5 to 10 knots after midnight. Bay waters light chop. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...West winds 5 to 10 knots. Bay waters light chop. Showers with thunderstorms likely. .SATURDAY NIGHT...North winds around 5 knots, becoming northeast after midnight. Bay waters light chop. Showers likely with a chance of thunderstorms early in the evening, then a chance of showers with a slight chance of thunderstorms in the late evening and overnight. .SUNDAY...North winds 5 to 10 knots. Bay waters light chop. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of showers. A chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .MONDAY...North winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ450-280700- Coastal waters from Cameron LA to High Island TX out 20 NM- 110 PM CDT Wed Aug 27 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A chance of showers. A slight chance of thunderstorms until early morning, then a chance of thunderstorms late. .THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A slight chance of showers in the evening. A chance of showers and thunderstorms after midnight. .FRIDAY...Southwest winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. Showers likely in the morning. Thunderstorms likely. A chance of showers in the afternoon. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of thunderstorms. A chance of showers. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .MONDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. A slight chance of thunderstorms early in the evening. A slight chance of showers until early morning, then a chance of showers late. Winds and seas higher in and near thunderstorms. $$ GMZ452-280700- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 110 PM CDT Wed Aug 27 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A chance of thunderstorms this evening. A chance of showers. A slight chance of thunderstorms after midnight. .THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .THURSDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A slight chance of showers and thunderstorms early in the evening. A chance of showers after midnight. A chance of thunderstorms late. .FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...West winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. Showers with thunderstorms likely until late afternoon, then a chance of showers and thunderstorms late. .SATURDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms early in the evening, then a chance of showers with a slight chance of thunderstorms in the late evening and overnight. .SUNDAY...North winds around 10 knots. Seas around 2 feet in the morning, then 1 foot or less. A chance of thunderstorms. A chance of showers. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas 1 foot or less. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .MONDAY...North winds around 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds around 10 knots. Seas 1 foot or less. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-280700- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 110 PM CDT Wed Aug 27 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of thunderstorms this evening. A chance of showers. A slight chance of thunderstorms after midnight. .THURSDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A chance of showers and thunderstorms early in the morning, then a slight chance of showers and thunderstorms in the late morning and afternoon. .THURSDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. A slight chance of showers after midnight. A slight chance of showers and thunderstorms late. .FRIDAY...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. A chance of showers. A slight chance of thunderstorms early in the morning, then a chance of thunderstorms in the late morning and afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. .SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. Showers with thunderstorms likely until late afternoon, then a chance of showers and thunderstorms late. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .SUNDAY...North winds 5 to 10 knots. Seas 1 foot or less. A chance of thunderstorms. A chance of showers. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .MONDAY...North winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-280700- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 110 PM CDT Wed Aug 27 2025 .TONIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A chance of showers. A slight chance of thunderstorms until early morning, then a chance of thunderstorms late. .THURSDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .THURSDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A slight chance of showers in the evening. A chance of showers after midnight. A slight chance of thunderstorms late. .FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of thunderstorms in the evening. A chance of showers. A chance of thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. Showers in the morning. Thunderstorms likely. A chance of showers in the afternoon. .SATURDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .SUNDAY...North winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. A chance of showers. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .MONDAY...North winds around 10 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms until late afternoon, then a slight chance of thunderstorms late. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet in the evening, then 1 foot or less. A chance of showers with a slight chance of thunderstorms early in the evening, then a slight chance of showers late in the evening. A chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-280700- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 110 PM CDT Wed Aug 27 2025 .TONIGHT...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of thunderstorms. .THURSDAY...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A chance of thunderstorms in the morning. A chance of showers. A slight chance of thunderstorms in the afternoon. .THURSDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A chance of showers after midnight. A chance of showers with a slight chance of thunderstorms late. .FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .SATURDAY...West winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. Showers with thunderstorms likely until late afternoon, then showers likely with a chance of thunderstorms late. .SATURDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers in the evening. A chance of thunderstorms. Showers likely after midnight. .SUNDAY...North winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet in the evening, then 1 foot or less. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .MONDAY...North winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-280700- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 110 PM CDT Wed Aug 27 2025 .TONIGHT...Southeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of thunderstorms. A chance of showers early this evening, then a slight chance of showers late this evening and overnight. .THURSDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A chance of showers with a slight chance of thunderstorms early in the morning, then a slight chance of showers and thunderstorms in the late morning and early afternoon. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of showers after midnight. A slight chance of showers and thunderstorms late. .FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms late in the evening. Showers likely with a chance of thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. Showers with thunderstorms likely until late afternoon, then showers likely with a chance of thunderstorms late. .SATURDAY NIGHT...North winds 5 to 10 knots, becoming east after midnight. Seas around 2 feet. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. .SUNDAY...North winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. A chance of thunderstorms. Showers likely until late afternoon, then a chance of showers late. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas 1 foot or less. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .MONDAY...North winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. Winds and seas higher in and near thunderstorms. $$