Coastal Waters Forecast
Issued by NWS New Orleans/Baton Rouge, LA
Issued by NWS New Orleans/Baton Rouge, LA
429 FZUS54 KLIX 300001 CWFLIX Coastal Waters Forecast National Weather Service New Orleans LA 701 PM CDT Fri Aug 29 2025 Pascagoula to Atchafalaya River out to 60 NM Seas are provided as a range of the average height of the highest 1/3 of the waves...along with the occasional height of the average highest 10 percent of the waves. GMZ500-GMZ501-301300- 701 PM CDT Fri Aug 29 2025 .SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM... The main marine concern during the next few days of the forecast period will be the increasing threat for thunderstorms that could produce locally higher winds and seas. Stable airmass along the coast today will probably limit convection but not going to be the case this weekend. Gusty outflow winds upwards of gale force are the main threat. This pattern continues into early next week as a backdoor cold front gradually pushes into the coastal waters. The current wind forecast would indicate generally offshore flow by late Sunday afternoon for most or all of the waters as a backdoor cold front pushes in from the northeast. If the front makes it well into the Gulf early next week, that may justify Small Craft Exercise Caution headlines by Monday or Tuesday. $$ GMZ530-301300- Lake Pontchartrain and Lake Maurepas- 701 PM CDT Fri Aug 29 2025 .TONIGHT...Southeast winds around 5 knots, becoming south after midnight, then becoming west late. Waves 1 foot or less. A chance of showers and thunderstorms until early morning, then showers and thunderstorms likely late. .SATURDAY...North winds around 5 knots. Waves 1 foot or less. Showers and thunderstorms likely, mainly in the morning. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms in the evening. .SUNDAY...Northeast winds 5 to 10 knots. Waves around 2 feet. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...East winds 5 to 10 knots. Waves 1 to 2 feet. A slight chance of showers after midnight. .MONDAY...East winds 5 to 10 knots. Waves around 2 feet. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...East winds 5 to 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms, mainly in the evening. .TUESDAY...East winds around 5 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Southeast winds around 5 knots, becoming southwest after midnight. Waves 1 foot or less. A slight chance of showers and thunderstorms in the evening. .WEDNESDAY...Northwest winds around 5 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...North winds around 5 knots. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ GMZ534-301300- Lake Borgne- 701 PM CDT Fri Aug 29 2025 .TONIGHT...Southeast winds around 5 knots, becoming west late. Waves 1 foot or less. A chance of showers and thunderstorms until early morning, then showers and thunderstorms likely late. .SATURDAY...North winds 5 to 10 knots. Waves 1 foot or less. Showers and thunderstorms likely, mainly in the morning. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet after midnight. A chance of showers. A chance of thunderstorms, mainly in the evening. .SUNDAY...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds around 10 knots. Waves around 2 feet. A slight chance of showers and thunderstorms. .MONDAY...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .MONDAY NIGHT...East winds around 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms. .TUESDAY...East winds around 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming southwest after midnight. Waves 1 foot or less. A chance of showers and thunderstorms, mainly in the evening. .WEDNESDAY...Northwest winds 5 to 10 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...West winds 5 to 10 knots, becoming north after midnight. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ GMZ532-301300- Mississippi Sound- 701 PM CDT Fri Aug 29 2025 .TONIGHT...Southeast winds 5 to 10 knots, becoming south after midnight, then becoming west late. Waves around 2 feet this evening, then 1 foot or less. A chance of showers and thunderstorms this evening, then showers with thunderstorms likely after midnight. .SATURDAY...North winds 5 to 10 knots. Waves 1 foot or less. Showers and thunderstorms likely, mainly in the morning. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 to 2 feet. A chance of showers. A chance of thunderstorms, mainly in the evening. .SUNDAY...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds around 10 knots. Waves around 2 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. .MONDAY...East winds around 10 knots. Waves around 2 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .MONDAY NIGHT...East winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .TUESDAY...East winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .TUESDAY NIGHT...East winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less. A chance of showers. A chance of thunderstorms, mainly in the evening. .WEDNESDAY...Northwest winds 5 to 10 knots, becoming southwest in the afternoon. Waves 1 foot or less, then around 2 feet in the afternoon. A slight chance of showers and thunderstorms. .WEDNESDAY NIGHT...West winds 5 to 10 knots, becoming north after midnight. Waves around 2 feet. A slight chance of showers and thunderstorms in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ536-538-301300- Chandeleur Sound-Breton Sound- 701 PM CDT Fri Aug 29 2025 .TONIGHT...Southeast winds 5 to 10 knots, becoming southwest after midnight. Waves 1 foot or less. A chance of showers and thunderstorms this evening, then showers and thunderstorms likely after midnight. .SATURDAY...Northwest winds 5 to 10 knots. Waves 1 foot or less. Thunderstorms likely. Showers likely, mainly in the morning. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet after midnight. A chance of showers and thunderstorms. .SUNDAY...Northeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Waves around 2 feet. A chance of showers and thunderstorms. .SUNDAY NIGHT...East winds around 10 knots. Waves 2 to 3 feet. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .MONDAY...East winds 10 to 15 knots. Waves 2 to 3 feet. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...East winds around 10 knots. Waves around 2 feet. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .TUESDAY...East winds around 10 knots. Waves around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms. .WEDNESDAY...Northwest winds 5 to 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms, mainly in the morning. .WEDNESDAY NIGHT...West winds 5 to 10 knots, becoming northwest after midnight. Waves 1 foot or less, then around 2 feet after midnight. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ555-557-301300- Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm- Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM- 701 PM CDT Fri Aug 29 2025 .TONIGHT...South winds 5 to 10 knots, becoming southwest late. Seas around 2 feet. A chance of showers and thunderstorms this evening, then showers and thunderstorms likely after midnight. .SATURDAY...Northwest winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Thunderstorms likely. Showers, mainly in the morning. .SATURDAY NIGHT...North winds 5 to 10 knots. Seas 1 foot or less. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .MONDAY...Northeast winds 10 to 15 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .TUESDAY...East winds around 10 knots. Seas around 2 feet. Showers likely with a chance of thunderstorms. .TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .WEDNESDAY...Northwest winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms, mainly in the morning. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ550-552-301300- Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm- Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM- 701 PM CDT Fri Aug 29 2025 .TONIGHT...South winds 5 to 10 knots, becoming southwest late. Seas 1 foot or less, then 1 to 2 feet after midnight. A chance of showers and thunderstorms early this evening. A slight chance of showers and thunderstorms late this evening and early morning, then a chance of showers and thunderstorms late. .SATURDAY...West winds 5 to 10 knots. Seas 1 to 2 feet in the morning, then 1 foot or less. Thunderstorms likely. Showers likely, mainly in the morning. .SATURDAY NIGHT...North winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Showers likely with a chance of thunderstorms. .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 1 to 2 feet. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 2 feet. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .TUESDAY...Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. .TUESDAY NIGHT...Northeast winds 5 to 10 knots, becoming north after midnight. Seas 1 to 2 feet. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .WEDNESDAY...Northwest winds 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ575-577-301300- Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm- Coastal waters from Pascagoula Mississippi to Stake Island Louisiana out 20 to 60 NM- 701 PM CDT Fri Aug 29 2025 .TONIGHT...Southeast winds 5 to 10 knots, becoming south late. Seas around 2 feet. A slight chance of showers and thunderstorms this evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. Thunderstorms likely. Showers likely, mainly in the morning. .SATURDAY NIGHT...West winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. .SUNDAY...Northwest winds 5 to 10 knots, becoming north in the afternoon. Seas around 2 feet. Showers with a chance of thunderstorms. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...Northeast winds around 10 knots. Seas around 2 feet. Showers with a chance of thunderstorms. .MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. .TUESDAY...Northeast winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .TUESDAY NIGHT...East winds around 10 knots, becoming south after midnight. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .WEDNESDAY...Northwest winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 2 feet. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ570-572-301300- Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM- Coastal waters from Southwest Pass of the Mississippi River to Port Fourchon Louisiana from 20 to 60 NM- 701 PM CDT Fri Aug 29 2025 .TONIGHT...Southeast winds 5 to 10 knots, becoming southwest late. Seas around 2 feet. A slight chance of showers and thunderstorms early this evening. A slight chance of showers and thunderstorms after midnight, then a chance of showers and thunderstorms late. .SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. Thunderstorms likely. Showers likely, mainly in the morning. .SATURDAY NIGHT...West winds around 5 knots. Seas 1 foot or less. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northwest winds around 5 knots, becoming north in the afternoon. Seas around 2 feet. Showers with a chance of thunderstorms. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .MONDAY...Northeast winds around 10 knots. Seas around 2 feet. Showers with a chance of thunderstorms. .MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .TUESDAY...Northeast winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. .TUESDAY NIGHT...Northeast winds around 10 knots, becoming northwest after midnight. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .WEDNESDAY...Northwest winds around 10 knots. Seas 2 to 3 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$