


Coastal Waters Forecast
Issued by NWS Lake Charles, LA
Issued by NWS Lake Charles, LA
247 FZUS54 KLCH 250557 CWFLCH Coastal Waters Forecast National Weather Service Lake Charles LA 1257 AM CDT Fri Jul 25 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. GMZ400-251800- 1257 AM CDT Fri Jul 25 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... Expect a renewed round of nocturnal showers and thunderstorms to develop prior to sunrise in response to tropical wave and surface low meandering over the northwest Gulf. This feature moving nearby will also bring about an increase in winds and seas from east to west throughout the day today. Seas will increase to 2 to 4 feet with an onshore fetch around 15 knots with some higher gusts. Conditions will improve into Saturday as the wave begins moving inland. Elevated rain chances will prevail through the weekend, but winds should remain somewhat relaxed. High pressure prevails into the next work week bringing most rain chances to a close and allowing the calm conditions to settle in. $$ GMZ430-251800- Sabine Lake- 1257 AM CDT Fri Jul 25 2025 .TODAY...Northeast winds around 5 knots, becoming southeast late. Lake waters smooth. A chance of showers and thunderstorms early this morning, then showers and thunderstorms late this morning and afternoon. .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. Showers and thunderstorms likely in the evening, then showers likely with a chance of thunderstorms after midnight. .SATURDAY...South winds 5 to 10 knots. Lake waters light chop. Showers with a chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. .SUNDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots, diminishing to around 5 knots after midnight. Lake waters light chop. .MONDAY...South winds around 5 knots. Lake waters smooth. .MONDAY NIGHT...Southwest winds around 5 knots. Lake waters smooth. .TUESDAY...West winds around 5 knots. Lake waters smooth. .TUESDAY NIGHT...Southwest winds around 5 knots. Lake waters smooth. Winds and waves higher in and near thunderstorms. $$ GMZ432-251800- Calcasieu Lake- 1257 AM CDT Fri Jul 25 2025 .TODAY...East winds 5 to 10 knots, becoming southeast late. Lake waters light chop. A chance of showers and thunderstorms early this morning, then showers and thunderstorms late this morning and afternoon. .TONIGHT...South winds 5 to 10 knots. Lake waters light chop. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...South winds around 10 knots. Lake waters light chop. Thunderstorms likely. Showers. .SATURDAY NIGHT...South winds 5 to 10 knots. Lake waters light chop. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds 5 to 10 knots. Lake waters light chop. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots, diminishing to around 5 knots after midnight. Lake waters light chop. .MONDAY...Southwest winds around 5 knots. Lake waters smooth. .MONDAY NIGHT...Southwest winds around 5 knots. Lake waters smooth. .TUESDAY...Northwest winds around 5 knots. Lake waters smooth. .TUESDAY NIGHT...West winds around 5 knots. Lake waters smooth. A slight chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ435-251800- Vermilion and West Cote Blanche Bays- 1257 AM CDT Fri Jul 25 2025 .TODAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots this afternoon. Bay waters choppy. Showers likely with a chance of thunderstorms early this morning, then showers and thunderstorms late this morning and afternoon. .TONIGHT...South winds 10 to 15 knots. Bay waters choppy. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...South winds around 10 knots. Bay waters light chop. Showers with thunderstorms likely. .SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms. .SUNDAY...Southeast winds 5 to 10 knots. Bay waters light chop. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds around 5 knots. Bay waters smooth. .MONDAY...Northwest winds around 5 knots, becoming southwest in the afternoon. Bay waters smooth. A slight chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...West winds 5 to 10 knots. Bay waters light chop. .TUESDAY...Northwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...West winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ436-251800- Atchafalaya and East Cote Blanche Bays- 1257 AM CDT Fri Jul 25 2025 .TODAY...Southeast winds 5 to 10 knots, becoming south 10 to 15 knots this afternoon. Bay waters choppy. Showers with a chance of thunderstorms early this morning, then showers and thunderstorms late this morning and afternoon. .TONIGHT...South winds 10 to 15 knots. Bay waters choppy. Showers likely. Thunderstorms likely, mainly in the evening. .SATURDAY...South winds 5 to 10 knots. Bay waters light chop. Showers, thunderstorms. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms. .SUNDAY...Southeast winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds around 5 knots. Bay waters smooth. .MONDAY...Northwest winds around 5 knots. Bay waters smooth. A slight chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...West winds around 5 knots. Bay waters smooth. .TUESDAY...Northwest winds 5 to 10 knots. Bay waters light chop. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...Northwest winds around 5 knots. Bay waters smooth. A chance of showers and thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ450-251800- Coastal waters from Cameron LA to High Island TX out 20 NM- 1257 AM CDT Fri Jul 25 2025 .TODAY...Northeast winds 5 to 10 knots, becoming east this afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds and southwest 1 foot at 4 seconds. Showers and thunderstorms until late afternoon, then a chance of showers and thunderstorms late. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. Showers likely. Thunderstorms likely, mainly in the evening. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. Showers with thunderstorms likely in the morning, then a chance of showers and thunderstorms in the afternoon. .SATURDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms after midnight. .SUNDAY...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. .MONDAY...South winds 5 to 10 knots. Seas around 2 feet. .MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. .TUESDAY...West winds 5 to 10 knots. Seas around 2 feet. .TUESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ452-251800- Coastal waters from Intracoastal City to Cameron LA out 20 NM- 1257 AM CDT Fri Jul 25 2025 .TODAY...East winds around 10 knots, becoming southeast this afternoon. Seas 1 foot or less, then around 2 feet this afternoon. Wave Detail: East 1 foot at 3 seconds, becoming southeast 2 feet at 3 seconds. Showers and thunderstorms. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 4 seconds. Showers likely. A chance of thunderstorms in the evening, then thunderstorms likely after midnight. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 5 seconds. Thunderstorms likely. Showers. .SATURDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .MONDAY...Southwest winds around 5 knots. Seas around 2 feet. .MONDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. .TUESDAY...Northwest winds around 10 knots, diminishing to around 5 knots in the afternoon. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning. .TUESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ455-251800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA out 20 NM- 1257 AM CDT Fri Jul 25 2025 .TODAY...Southeast winds 5 to 10 knots, becoming south 10 to 15 knots this afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 3 seconds. Showers and thunderstorms. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 3 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...South winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: South 2 feet at 4 seconds. Thunderstorms likely. Showers. .SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 1 foot at 3 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds around 5 knots. Seas 1 foot or less. .MONDAY...Northwest winds around 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms after midnight. .TUESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ470-251800- Coastal waters from Cameron LA to High Island TX from 20 to 60 NM- 1257 AM CDT Fri Jul 25 2025 .TODAY...North winds 5 to 10 knots, becoming south late. Seas 1 foot or less, then around 2 feet this afternoon. Wave Detail: Northeast 1 foot at 3 seconds and west 1 foot at 4 seconds, becoming northeast 1 foot at 3 seconds and west 1 foot at 3 seconds. Showers and thunderstorms until late afternoon, then showers and thunderstorms likely late. .TONIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 6 seconds and southwest 2 feet at 3 seconds. Showers and thunderstorms likely. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. Showers with thunderstorms likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. .SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A chance of showers with a slight chance of thunderstorms after midnight. .SUNDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. .MONDAY...South winds around 5 knots. Seas 2 to 3 feet. .MONDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. .TUESDAY...Northwest winds 5 to 10 knots. Seas around 2 feet. .TUESDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ472-251800- Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM- 1257 AM CDT Fri Jul 25 2025 .TODAY...East winds around 10 knots, becoming south this afternoon. Seas 1 foot or less, then 2 to 4 feet this afternoon. Wave Detail: East 1 foot at 3 seconds, becoming southeast 2 feet at 4 seconds. Thunderstorms likely. Showers. .TONIGHT...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 5 seconds. Showers and thunderstorms likely. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 5 seconds. Showers with thunderstorms likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. .SATURDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. .MONDAY...Southeast winds around 5 knots. Seas 2 to 3 feet. .MONDAY NIGHT...Southwest winds around 5 knots, becoming west after midnight. Seas around 2 feet. .TUESDAY...Northwest winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms in the morning. .TUESDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ475-251800- Coastal waters from Lower Atchafalaya River to Intracoastal City LA from 20 to 60 NM- 1257 AM CDT Fri Jul 25 2025 .TODAY...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at 4 seconds. Thunderstorms likely. Showers. .TONIGHT...South winds around 15 knots with gusts up to 20 knots. Seas around 4 feet. Wave Detail: South 3 feet at 5 seconds. A chance of thunderstorms. Showers likely, mainly in the evening. .SATURDAY...South winds 10 to 15 knots. Seas 2 to 4 feet. Wave Detail: South 3 feet at 5 seconds. Showers with thunderstorms likely. .SATURDAY NIGHT...Southeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers and thunderstorms. .SUNDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds. .MONDAY...Northwest winds around 5 knots. Seas 2 to 3 feet. A slight chance of showers in the afternoon. .MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms after midnight. .TUESDAY...North winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms, mainly in the morning. .TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$