Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
632 FZUS54 KLCH 070559 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1259 AM CDT Sun Sep 7 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. GMZ400-071800- 1259 AM CDT Sun Sep 7 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... Isolated showers and thunderstorms will continue through tonight offshore ahead of/near the front, with rain chances decreasing through tomorrow. A modest offshore flow will develop this morning and remain in place through Wednesday behind the front. Offshore winds along with seas will be increasing late this afternoon into Monday as high pressure builds down from the Midwest and briefly tightens the pressure gradient overhead. By the mid week winds / gusts will ease and gain more easterly components. $$ GMZ430-071800- Sabine Lake- 1259 AM CDT Sun Sep 7 2025 .TODAY...Northeast winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms early this morning. .TONIGHT...Northeast winds 10 to 15 knots. Lake waters choppy. .MONDAY...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Lake waters choppy. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Lake waters light chop. .TUESDAY...Northeast winds 5 to 10 knots. Lake waters light chop. .TUESDAY NIGHT...Northeast winds around 5 knots. Lake waters smooth. .WEDNESDAY...East winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY NIGHT...East winds around 5 knots. Lake waters smooth. .THURSDAY...Northeast winds 5 to 10 knots. Lake waters light chop. .THURSDAY NIGHT...East winds around 5 knots. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ432-071800- Calcasieu Lake- 1259 AM CDT Sun Sep 7 2025 .TODAY...Northeast winds around 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms early this morning. .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Lake waters choppy. .MONDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots. Lake waters choppy. .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...Northeast winds around 5 knots. Lake waters smooth. .WEDNESDAY...East winds 5 to 10 knots. Lake waters light chop. .WEDNESDAY NIGHT...East winds around 5 knots. Lake waters smooth. .THURSDAY...Northeast winds 5 to 10 knots. Lake waters light chop. .THURSDAY NIGHT...East winds 5 to 10 knots. Lake waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ435-071800- Vermilion and West Cote Blanche Bays- 1259 AM CDT Sun Sep 7 2025 .TODAY...Northeast winds 10 to 15 knots. Bay waters choppy. .TONIGHT...Northeast winds 10 to 15 knots with gusts up to 20 knots. Bay waters choppy. .MONDAY...Northeast winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots in the afternoon. Bay waters choppy. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters light chop. .TUESDAY...Northeast winds 5 to 10 knots. Bay waters light chop. .TUESDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. .WEDNESDAY...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms early in the evening. .THURSDAY...East winds 5 to 10 knots. Bay waters light chop. .THURSDAY NIGHT...East winds 5 to 10 knots. Bay waters light chop. Winds and waves higher in and near thunderstorms. $$ GMZ436-071800- Atchafalaya and East Cote Blanche Bays- 1259 AM CDT Sun Sep 7 2025 .TODAY...Northeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms late. .TONIGHT...Northeast winds 10 to 15 knots. Bay waters choppy. .MONDAY...Northeast winds 10 to 15 knots with gusts up to 20 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...Northeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds around 5 knots, increasing to 5 to 10 knots after midnight. Bay waters light chop. A slight chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. .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 until early morning. .THURSDAY...East winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .THURSDAY NIGHT...East winds 5 to 10 knots, diminishing to around 5 knots after midnight. Bay waters light chop. A slight chance of showers and thunderstorms early in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ450-071800- Coastal waters from Cameron LA to High Island TX out 20 NM- 1259 AM CDT Sun Sep 7 2025 .TODAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds and south 1 foot at 4 seconds. A chance of showers and thunderstorms early this morning. A slight chance of showers and thunderstorms late. .TONIGHT...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds. A slight chance of showers early in the evening. .MONDAY...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. .TUESDAY...Northeast winds 10 to 15 knots, becoming east 5 to 10 knots in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. .WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers late. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. A slight chance of thunderstorms after midnight. .THURSDAY...East winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ452-071800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1259 AM CDT Sun Sep 7 2025 .TODAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 3 seconds. A slight chance of showers and thunderstorms early this morning. .TONIGHT...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: Northeast 2 feet at 3 seconds. A slight chance of showers late in the evening. .MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds. .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, diminishing to 5 to 10 knots in the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers. A slight chance of thunderstorms late. .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. .THURSDAY...East winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. 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 seas higher in and near thunderstorms. $$ GMZ455-071800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1259 AM CDT Sun Sep 7 2025 .TODAY...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots this afternoon. Seas around 2 feet. Wave Detail: Northeast 1 foot at 2 seconds. .TONIGHT...Northeast winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 3 seconds. A slight chance of showers and thunderstorms early in the evening, then a slight chance of showers late in the evening. .MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 3 seconds. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. .TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. A slight chance of thunderstorms. A chance of showers until early morning, then a slight chance of showers late. .WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of thunderstorms. A chance of showers, mainly in the evening. .THURSDAY...East winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. .THURSDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms until early morning. Winds and seas higher in and near thunderstorms. $$ GMZ470-071800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1259 AM CDT Sun Sep 7 2025 .TODAY...Northeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 3 seconds and southeast 2 feet at 5 seconds. A chance of showers and thunderstorms, mainly this morning. .TONIGHT...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 3 feet, building to 3 to 5 feet, occasionally to 6 feet after midnight. Wave Detail: Northeast 3 feet at 4 seconds and south 1 foot at 5 seconds. A slight chance of showers. A slight chance of thunderstorms early in the evening. A slight chance of thunderstorms late. .MONDAY...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast 4 feet at 5 seconds and south 1 foot at 5 seconds. A slight chance of showers and thunderstorms early in the morning, then a slight chance of showers in the late morning and early afternoon. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. .TUESDAY...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A slight chance of showers. .WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms. .THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of thunderstorms. A chance of showers, mainly in the morning. .THURSDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. A slight chance of thunderstorms early in the evening. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ472-071800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1259 AM CDT Sun Sep 7 2025 .TODAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 4 seconds and southwest 1 foot at 4 seconds. A chance of showers and thunderstorms early this morning, then a slight chance of showers and thunderstorms late this morning and afternoon. .TONIGHT...Northeast winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet. Wave Detail: Northeast 3 feet at 4 seconds and southwest 1 foot at 5 seconds. A chance of showers. A slight chance of thunderstorms after midnight. .MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet, subsiding to 2 to 4 feet in the afternoon. Wave Detail: Northeast 4 feet at 5 seconds and southwest 1 foot at 5 seconds. A slight chance of showers and thunderstorms in the morning, then a slight chance of showers early in the afternoon. .MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 4 seconds. .TUESDAY...Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. A slight chance of showers in the afternoon. .TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. A chance of showers. A slight chance of thunderstorms late. .WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms. .THURSDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. .THURSDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ475-071800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1259 AM CDT Sun Sep 7 2025 .TODAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds. A slight chance of showers and thunderstorms. .TONIGHT...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 4 seconds. A slight chance of 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 3 feet at 5 seconds. A slight chance of thunderstorms until late afternoon. A slight chance of showers. .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. .TUESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. .TUESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. A chance of showers. A slight chance of thunderstorms until early morning, then a chance of thunderstorms late. .WEDNESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. A chance of thunderstorms until late afternoon, then a slight chance of thunderstorms late. .WEDNESDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. .THURSDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. .THURSDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of thunderstorms. A chance of showers until early morning, then a slight chance of showers late. Winds and seas higher in and near thunderstorms. $$