Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
341 FZUS54 KLCH 060530 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1230 AM CDT Sat Sep 6 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. GMZ400-061800- 1230 AM CDT Sat Sep 6 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 flow and low seas will continue today until a cold front moves through the coastal waters tonight. Chances for showers and thunderstorms will also increase ahead of the front. A modest offshore flow will occur behind the front into Sunday. Offshore winds along with seas will be increasing on Monday as high pressure builds down from the Midwest. $$ GMZ430-061800- Sabine Lake- 1230 AM CDT Sat Sep 6 2025 .TODAY...West winds around 5 knots, becoming east around 5 knots this afternoon. Lake waters smooth. A slight chance of showers late this morning. A slight chance of showers and thunderstorms this afternoon. .TONIGHT...East winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms early in the evening, then a slight chance of showers and thunderstorms in the late evening and early morning. .MONDAY...Northeast winds 5 to 10 knots. Lake waters light chop. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters light chop. .TUESDAY...Northeast winds 5 to 10 knots. Lake waters light chop. .TUESDAY NIGHT...Southeast winds around 5 knots, becoming northeast after midnight. Lake waters smooth. .WEDNESDAY...East winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY NIGHT...Southeast winds around 5 knots, becoming east after midnight. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ432-061800- Calcasieu Lake- 1230 AM CDT Sat Sep 6 2025 .TODAY...Northeast winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...Northeast winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms early in the evening. .SUNDAY...Northeast winds around 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds around 10 knots with gusts up to 20 knots. Lake waters light chop. A slight chance of showers and thunderstorms early in the evening, then a slight chance of showers late in the evening. .MONDAY...Northeast winds 10 to 15 knots. Lake waters choppy. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters light chop. .TUESDAY...East winds 5 to 10 knots. Lake waters light chop. .TUESDAY NIGHT...South winds around 5 knots, becoming northeast after midnight. Lake waters smooth. .WEDNESDAY...East winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY NIGHT...Southeast winds around 5 knots. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ435-061800- Vermilion and West Cote Blanche Bays- 1230 AM CDT Sat Sep 6 2025 .TODAY...South winds around 5 knots, becoming north this afternoon. Bay waters smooth. .TONIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. .SUNDAY...Northeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Bay waters choppy. A slight chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. .MONDAY...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Bay waters choppy. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. .TUESDAY...East winds 5 to 10 knots. Bay waters light chop. .TUESDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms early in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ436-061800- Atchafalaya and East Cote Blanche Bays- 1230 AM CDT Sat Sep 6 2025 .TODAY...Southeast winds around 5 knots, becoming northwest this afternoon. Bay waters smooth. .TONIGHT...North winds around 5 knots, increasing to 5 to 10 knots after midnight. Bay waters light chop. .SUNDAY...Northeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Bay waters choppy. A slight chance of showers and thunderstorms until early morning. .MONDAY...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Bay waters choppy. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. .TUESDAY...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms until early morning. .WEDNESDAY...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms early in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ450-061800- Coastal waters from Cameron LA to High Island TX out 20 NM- 1230 AM CDT Sat Sep 6 2025 .TODAY...South winds 5 to 10 knots, becoming east this afternoon. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers late this morning. .TONIGHT...East winds around 5 knots, becoming northeast 10 to 15 knots after midnight. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: South 1 foot at 4 seconds and east 1 foot at 4 seconds. A slight chance of showers and thunderstorms early in the evening. A slight chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and south 1 foot at 4 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...Northeast winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. .MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4 seconds. A slight chance of showers and thunderstorms until late afternoon. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. .TUESDAY...Northeast winds 10 to 15 knots, becoming east 5 to 10 knots in the afternoon. Seas around 2 feet. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers late. .WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-061800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1230 AM CDT Sat Sep 6 2025 .TODAY...South winds 5 to 10 knots, becoming east this afternoon. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: South 1 foot at 4 seconds. .TONIGHT...East winds around 5 knots, becoming northeast 10 to 15 knots after midnight. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Northeast 1 foot at 2 seconds and southwest 1 foot at 4 seconds. A slight chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds. A slight chance of showers and thunderstorms. .SUNDAY NIGHT...Northeast winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 3 seconds. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. .MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. A slight chance of showers and thunderstorms in the morning. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds. .TUESDAY...Northeast winds 10 to 15 knots, becoming east 5 to 10 knots in the afternoon. Seas around 2 feet. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of showers and thunderstorms. .WEDNESDAY...East winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ455-061800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1230 AM CDT Sat Sep 6 2025 .TODAY...South winds around 5 knots, becoming north this afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. .TONIGHT...North winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. .SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. A slight chance of showers and thunderstorms early in the morning. A slight chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Northeast 2 feet at 3 seconds. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. .MONDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds. A slight chance of showers and thunderstorms in the morning. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. .TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. A slight chance of thunderstorms. A chance of showers until early morning, then a slight chance of showers late. .WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of thunderstorms. A chance of showers early in the evening, then a slight chance of showers in the late evening and overnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-061800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1230 AM CDT Sat Sep 6 2025 .TODAY...South winds 5 to 10 knots, becoming east this afternoon. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. .TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms after midnight. .SUNDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and south 1 foot at 5 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 4 seconds. A chance of showers and thunderstorms. .MONDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet at 5 seconds. A chance of showers and thunderstorms until late afternoon, then a slight chance of showers and thunderstorms late. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. A slight chance of showers early in the evening. .TUESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers late. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. A slight chance of thunderstorms after midnight. .WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY NIGHT...East winds around 10 knots. Seas 2 to 3 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. $$ GMZ472-061800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1230 AM CDT Sat Sep 6 2025 .TODAY...South winds 5 to 10 knots, becoming northeast this afternoon. Seas around 2 feet this morning, then 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. .TONIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds and southwest 1 foot at 4 seconds. A slight chance of showers and thunderstorms late. .SUNDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 4 seconds and southwest 1 foot at 4 seconds. A chance of showers and thunderstorms. .MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet at 5 seconds. A chance of showers and thunderstorms, mainly in the morning. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 4 seconds. A slight chance of showers and thunderstorms early in the evening, then a slight chance of showers late in the evening. .TUESDAY...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas around 2 feet. A slight chance of showers and thunderstorms in the late morning and afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A chance of showers. A slight chance of thunderstorms until early morning, then a chance of thunderstorms late. .WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. A chance of thunderstorms, mainly in the morning. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ475-061800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1230 AM CDT Sat Sep 6 2025 .TODAY...South winds around 5 knots, becoming north this afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. .TONIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. A slight chance of showers and thunderstorms late. .SUNDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. A slight chance of thunderstorms in the morning. A chance of showers. A chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds. A chance of showers and thunderstorms. .MONDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: Northeast 4 feet at 5 seconds. A chance of showers. A chance of thunderstorms until late afternoon, then a slight chance of thunderstorms late. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. A slight chance of showers. A slight chance of thunderstorms in the evening. A slight chance of thunderstorms late. .TUESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. .WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 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. $$