Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
774 FZUS54 KLCH 281921 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 220 PM CDT Thu Aug 28 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. GMZ400-290800- 220 PM CDT Thu Aug 28 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 and low seas will prevail into early Saturday. In addition, scattered showers and storms will continue to be possible. A slowly advancing front slides south through Saturday morning which should bring about widespread shower and thunderstorm activity. Winds will turn offshore late Saturday or Sunday through the middle of next week as the frontal boundary moves off the coast and into the Gulf waters. $$ GMZ430-290800- Sabine Lake- 220 PM CDT Thu Aug 28 2025 .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. .FRIDAY...South winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...South winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms late in the evening. A chance of showers and thunderstorms after midnight. .SATURDAY...Northeast winds around 5 knots. Lake waters smooth. Showers likely with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. .SATURDAY NIGHT...East winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .SUNDAY...Northeast winds around 5 knots. Lake waters smooth. A chance of thunderstorms. Showers likely. .SUNDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight. .MONDAY...Northeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers in the late evening and overnight. .TUESDAY...North winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...North winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms early in the evening, then a slight chance of showers in the late evening and early morning. Winds and waves higher in and near thunderstorms. $$ GMZ432-290800- Calcasieu Lake- 220 PM CDT Thu Aug 28 2025 .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms late. .FRIDAY...Southwest winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms early in the morning, then a chance of showers and thunderstorms in the late morning and afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms late in the evening. A chance of showers and thunderstorms after midnight. .SATURDAY...Northeast winds around 5 knots. Lake waters smooth. Showers with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. .SATURDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. Showers in the evening. A chance of thunderstorms. A chance of showers after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Lake waters light chop. 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 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. .TUESDAY...Northeast winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. A slight chance of thunderstorms early in the evening. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$ GMZ435-290800- Vermilion and West Cote Blanche Bays- 220 PM CDT Thu Aug 28 2025 .TONIGHT...South winds 5 to 10 knots. Bay waters light chop. .FRIDAY...Southwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Northwest winds around 5 knots. Bay waters smooth. Showers. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SATURDAY NIGHT...Northeast winds around 5 knots. Bay waters smooth. Showers with thunderstorms likely in the evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of showers. A chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .MONDAY...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms in the evening. A chance of showers. .TUESDAY...Northeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Northeast winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms early in the evening, then a slight chance of showers in the late evening and overnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-290800- Atchafalaya and East Cote Blanche Bays- 220 PM CDT Thu Aug 28 2025 .TONIGHT...South winds 5 to 10 knots. Bay waters light chop. .FRIDAY...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...South winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...West winds around 5 knots. Bay waters smooth. Showers. A chance of thunderstorms early in the morning, then thunderstorms in the late morning and afternoon. .SATURDAY NIGHT...Northeast winds around 5 knots. Bay waters smooth. Showers with thunderstorms likely in the evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds around 5 knots. Bay waters smooth. Showers likely with a chance of thunderstorms. .SUNDAY NIGHT...Northeast winds around 5 knots, increasing to 5 to 10 knots after midnight. Bay waters light chop. Showers likely with a chance of thunderstorms early in the evening, then a chance of showers in the late evening and overnight. A slight chance of thunderstorms after midnight. .MONDAY...North winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms. A chance of showers. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and early morning. A chance of showers. .TUESDAY...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. .TUESDAY NIGHT...Northeast winds around 5 knots. Bay 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. $$ GMZ450-290800- Coastal waters from Cameron LA to High Island TX out 20 NM- 220 PM CDT Thu Aug 28 2025 .TONIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A slight chance of showers and thunderstorms late. .FRIDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A slight chance of showers and thunderstorms in the evening. A chance of showers and thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots, becoming east in the afternoon. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. Showers likely. A chance of thunderstorms early in the morning, then thunderstorms likely in the late morning and afternoon. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. A chance of thunderstorms. .SUNDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds and south 1 foot at 4 seconds. A chance of thunderstorms. Showers likely until late afternoon, then a chance of showers late. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms. .MONDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. A chance of showers. .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. A slight chance of thunderstorms after midnight. .TUESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. A slight chance of thunderstorms. A chance of showers until late afternoon, then a slight chance of showers late. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of showers. A slight chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-290800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 220 PM CDT Thu Aug 28 2025 .TONIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 3 seconds. A slight chance of showers and thunderstorms late. .FRIDAY...South winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots, becoming north in the afternoon. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: South 1 foot at 4 seconds. Thunderstorms likely. Showers. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 4 seconds and southeast 1 foot at 4 seconds. Showers likely with a chance of thunderstorms. .SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds and southwest 1 foot at 4 seconds. A chance of thunderstorms. Showers likely until late afternoon, then a chance of showers late. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers. .MONDAY...Northeast winds around 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. A chance of thunderstorms. A chance of showers. .MONDAY 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. A slight chance of thunderstorms after midnight. .TUESDAY...Northeast winds around 10 knots. Seas 1 foot or less. A slight chance of thunderstorms. A chance of showers until late afternoon, then a slight chance of showers late. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of thunderstorms early in the evening. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-290800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 220 PM CDT Thu Aug 28 2025 .TONIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 3 seconds. 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 slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .FRIDAY 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 and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds. Thunderstorms likely. Showers. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 2 seconds and west 1 foot at 3 seconds. Thunderstorms likely with a chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds and southwest 1 foot at 3 seconds. A chance of thunderstorms. Showers likely until late afternoon, then a chance of showers late. .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 thunderstorms. A chance of showers. .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. .TUESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. A slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ470-290800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 220 PM CDT Thu Aug 28 2025 .TONIGHT...South winds around 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...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms early in the morning, then a chance of showers and thunderstorms in the late morning and early afternoon. A slight chance of showers and thunderstorms late. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms after midnight. A chance of showers and thunderstorms late. .SATURDAY...Southwest winds 5 to 10 knots, becoming northwest in the afternoon. Seas around 2 feet. Wave Detail: South 1 foot at 5 seconds. A chance of thunderstorms. Showers likely until late afternoon, then a chance of showers late. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot 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. .SUNDAY...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 4 seconds and southeast 1 foot at 5 seconds. A chance of thunderstorms. Showers likely until late afternoon, then a chance of showers late. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers. .MONDAY...Northeast winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. A chance of showers. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of thunderstorms. A chance of showers until late afternoon, then a slight chance of showers late. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of thunderstorms early in the evening. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-290800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 220 PM CDT Thu Aug 28 2025 .TONIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of showers and thunderstorms early this evening. 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 slight chance of showers and thunderstorms in the morning. A chance of showers and thunderstorms early in the afternoon, then a slight chance of showers and thunderstorms late. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers in the evening. A chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds around 10 knots, becoming northwest in the afternoon. 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...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 3 seconds and southeast 1 foot at 5 seconds. A chance of thunderstorms. .SUNDAY...Northeast winds around 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: West 1 foot at 3 seconds and southeast 1 foot at 5 seconds. Showers likely with a chance of thunderstorms. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. .MONDAY...Northeast winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely until late afternoon, then a chance of showers late. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. .TUESDAY...North winds around 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. 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 with a slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-290800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 220 PM CDT Thu Aug 28 2025 .TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers late. .FRIDAY...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots, becoming west in the afternoon. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. Thunderstorms likely. Showers. .SATURDAY NIGHT...Northeast winds 5 to 10 knots, becoming southeast after midnight. Seas around 2 feet in the evening, then 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds and southeast 1 foot at 6 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. .SUNDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds and southeast 1 foot at 6 seconds. Showers with thunderstorms likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet in the evening, then 1 foot or less. A chance of thunderstorms in the evening. Showers likely. A slight chance of thunderstorms after midnight. .MONDAY...North winds around 10 knots. Seas 1 foot or less, then around 2 feet in the afternoon. Showers likely with a chance of thunderstorms until late afternoon, then a chance of showers with a slight chance of thunderstorms late. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .TUESDAY...North winds 5 to 10 knots. Seas around 2 feet. A slight chance of thunderstorms. Showers likely, mainly in the morning. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. A chance of showers. A slight chance of thunderstorms early in the evening. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$