Coastal Waters Forecast
Issued by NWS New Orleans/Baton Rouge, LA
Issued by NWS New Orleans/Baton Rouge, LA
406 FZUS54 KLIX 290526 CWFLIX Coastal Waters Forecast National Weather Service New Orleans LA 1226 AM 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-GMZ501-291800- 1226 AM CDT Fri Aug 29 2025 .SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM... The main marine concern during at least the first half of the forecast period will be the increasing threat for thunderstorms that could produce locally higher winds and seas through at least Saturday. Forecast confidence is a bit lower by late in the weekend, with an approaching cold front. The current wind forecast would indicate generally offshore flow by late Sunday afternoon for most or all of the waters. If the front makes it well into the Gulf early next week, that may justify Small Craft Exercise Caution headlines by Monday or Tuesday. $$ GMZ530-291800- Lake Pontchartrain and Lake Maurepas- 1226 AM CDT Fri Aug 29 2025 .REST OF TONIGHT...South winds around 5 knots. Waves 1 foot or less. A chance of showers and thunderstorms. .FRIDAY...South winds around 5 knots, becoming west in the afternoon. Waves 1 foot or less. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .FRIDAY NIGHT...Southwest winds around 5 knots. Waves 1 foot or less. A chance of showers and thunderstorms. .SATURDAY...Northwest winds around 5 knots. Waves 1 foot or less. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SATURDAY NIGHT...Northeast winds around 5 knots. Waves 1 foot or less. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Waves 1 foot or less. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet after midnight. A slight chance of thunderstorms in the evening. A slight chance of showers. .MONDAY...Northeast winds 5 to 10 knots. Waves around 2 feet in the morning, then 1 foot or less. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...East winds 5 to 10 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms in the evening. .TUESDAY...Northeast winds 5 to 10 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms in the afternoon. .TUESDAY NIGHT...East winds around 5 knots, becoming southwest after midnight. Waves 1 foot or less. Winds and waves higher in and near thunderstorms. $$ GMZ534-291800- Lake Borgne- 1226 AM CDT Fri Aug 29 2025 .REST OF TONIGHT...South winds 5 to 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms. .FRIDAY...South winds 5 to 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms. .SATURDAY...Northwest winds 5 to 10 knots. Waves 1 foot or less. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less. A chance of showers. A chance of thunderstorms, mainly in the evening. .SUNDAY...Northeast winds around 10 knots. Waves 1 foot or less. A chance of thunderstorms. A chance of showers. .SUNDAY NIGHT...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers. A chance of thunderstorms, mainly in the evening. .MONDAY...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds around 10 knots. Waves 1 foot or less, then around 2 feet after midnight. A chance of showers and thunderstorms, mainly in the evening. .TUESDAY...Northeast winds around 10 knots. Waves around 2 feet in the morning, then 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...East winds 5 to 10 knots. Waves 1 foot or less. A slight chance of thunderstorms in the evening. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$ GMZ532-291800- Mississippi Sound- 1226 AM CDT Fri Aug 29 2025 .REST OF TONIGHT...Southeast winds around 5 knots. Waves 1 foot or less. A chance of showers and thunderstorms. .FRIDAY...East winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet in the afternoon. A chance of thunderstorms. A chance of showers. .FRIDAY NIGHT...South winds around 10 knots, becoming southwest after midnight. Waves around 2 feet. Thunderstorms likely. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...Northwest winds 5 to 10 knots. Waves around 2 feet in the morning, then 1 foot or less. Thunderstorms likely. Showers likely. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Waves around 2 feet. A chance of showers. A chance of thunderstorms, mainly in the evening. .SUNDAY...Northeast winds around 10 knots. Waves around 2 feet. A chance of thunderstorms. A chance of showers. .SUNDAY NIGHT...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers with a slight chance of thunderstorms. .MONDAY...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .MONDAY NIGHT...East winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .TUESDAY...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .TUESDAY NIGHT...East winds 5 to 10 knots, becoming northeast after midnight. Waves around 2 feet. A slight chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ536-538-291800- Chandeleur Sound-Breton Sound- 1226 AM CDT Fri Aug 29 2025 .REST OF TONIGHT...South winds 5 to 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms, then a slight chance of showers and thunderstorms late. .FRIDAY...South winds 5 to 10 knots. Waves 1 foot or less. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .SATURDAY...Northwest winds 5 to 10 knots. Waves 1 foot or less. Thunderstorms likely. Showers. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet after midnight. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Waves around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .SUNDAY NIGHT...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .MONDAY...Northeast winds 10 to 15 knots. Waves around 2 feet. A chance of showers and thunderstorms. .MONDAY NIGHT...East winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .TUESDAY...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Waves 1 foot or less. A chance of showers. A chance of thunderstorms, mainly in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ555-557-291800- 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- 1226 AM CDT Fri Aug 29 2025 .REST OF TONIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A slight chance of showers and thunderstorms. .FRIDAY...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. A chance of showers and thunderstorms. .SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 3 seconds. Thunderstorms likely. Showers. .SATURDAY NIGHT...North winds 5 to 10 knots, becoming southeast after midnight. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds and southeast 1 foot at 4 seconds. 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. Wave Detail: Northeast 2 feet at 4 seconds and south 1 foot at 6 seconds. Showers likely with a chance of thunderstorms. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. A 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. Wave Detail: Northeast 2 feet at 4 seconds. A chance of thunderstorms. Showers likely. .MONDAY NIGHT...East winds around 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. 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. Wave Detail: Northeast 2 feet at 4 seconds. A 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 in the evening, then a chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ550-552-291800- 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- 1226 AM CDT Fri Aug 29 2025 .REST OF TONIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. .FRIDAY...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A chance of thunderstorms with a slight chance of showers in the afternoon. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: South 2 feet 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. Seas 1 to 2 feet. Wave Detail: South 2 feet at 4 seconds. Thunderstorms likely. Showers. .SATURDAY NIGHT...Northeast winds around 5 knots, becoming southeast after midnight. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds and southeast 1 foot at 4 seconds. 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. Wave Detail: East 1 foot at 4 seconds. A chance of thunderstorms. Showers likely. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds. A chance of showers and thunderstorms. .MONDAY...Northeast winds around 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 1 foot at 3 seconds. A chance of thunderstorms. Showers likely. .MONDAY NIGHT...Northeast winds around 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 1 foot at 3 seconds and south 1 foot at 6 seconds. A chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .TUESDAY...North winds around 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 1 foot at 3 seconds and south 1 foot at 6 seconds. A chance of showers and thunderstorms. .TUESDAY NIGHT...North winds 5 to 10 knots. Seas 1 to 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. $$ GMZ575-577-291800- 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- 1226 AM CDT Fri Aug 29 2025 .REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 1 foot at 4 seconds and south 1 foot at 7 seconds. .FRIDAY...Southeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds and south 1 foot at 7 seconds. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet 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. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. Showers with thunderstorms likely. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds and southeast 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...Northwest winds 5 to 10 knots, becoming north in the afternoon. Seas around 2 feet. Wave Detail: West 1 foot at 3 seconds and southeast 1 foot at 5 seconds. A chance of thunderstorms. Showers. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and northwest 1 foot at 3 seconds. A chance of showers and thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. .MONDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and south 1 foot at 7 seconds. A chance of thunderstorms. Showers. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and southeast 1 foot at 7 seconds. 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. Wave Detail: Northeast 2 feet at 4 seconds and south 1 foot at 6 seconds. A chance of thunderstorms. Showers. .TUESDAY NIGHT...Northeast 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. Winds and seas higher in and near thunderstorms. $$ GMZ570-572-291800- 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- 1226 AM CDT Fri Aug 29 2025 .REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of showers. .FRIDAY...Southeast winds 5 to 10 knots. Seas around 2 feet in the morning, then 1 foot or less. Wave Detail: Southeast 2 feet at 4 seconds, becoming southeast 1 foot at 4 seconds. A chance of thunderstorms with a slight chance of showers in the afternoon. .FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming south after midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet 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. Seas around 2 feet. Wave Detail: South 2 feet at 4 seconds. Showers. Thunderstorms likely, mainly in the morning. .SATURDAY NIGHT...Northeast winds around 5 knots, becoming south after midnight. Seas around 2 feet in the evening, then 1 foot or less. Wave Detail: West 1 foot at 3 seconds and east 1 foot at 4 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...West winds 5 to 10 knots, becoming northwest in the afternoon. Seas around 2 feet. Wave Detail: West 1 foot at 3 seconds and southeast 1 foot at 6 seconds. Showers with a chance of thunderstorms. .SUNDAY NIGHT...Northeast winds around 10 knots, becoming east after midnight. Seas around 2 feet. Wave Detail: West 1 foot at 3 seconds and northeast 1 foot at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. A chance of thunderstorms. Showers likely. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and south 1 foot at 8 seconds. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. .TUESDAY...North winds around 10 knots. Seas around 2 feet. Wave Detail: North 2 feet at 4 seconds and south 1 foot at 7 seconds. Showers likely with a chance of thunderstorms. .TUESDAY NIGHT...North winds around 10 knots. Seas around 2 feet. A chance of showers. A slight chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$