


Coastal Waters Forecast
Issued by NWS New Orleans/Baton Rouge, LA
Issued by NWS New Orleans/Baton Rouge, LA
451 FZUS54 KLIX 281726 CWFLIX Coastal Waters Forecast National Weather Service New Orleans LA 1226 PM CDT Thu Aug 28 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-GMZ501-290600- 1226 PM CDT Thu Aug 28 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. Maybe not much today, but more certainly Friday into 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. $$ GMZ530-290600- Lake Pontchartrain and Lake Maurepas- 1226 PM CDT Thu Aug 28 2025 .THIS AFTERNOON...Southeast winds around 5 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms. .TONIGHT...South winds around 5 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .FRIDAY...Southwest winds around 5 knots, becoming southeast in the afternoon. Waves 1 foot or less. A chance of showers and thunderstorms. .FRIDAY NIGHT...Southeast winds 5 to 10 knots, becoming southwest after midnight. Waves 1 foot or less. A chance of thunderstorms. A chance of showers. .SATURDAY...Northwest winds around 5 knots, becoming north in the afternoon. Waves 1 foot or less. Showers likely with a chance of thunderstorms in the morning, then showers and thunderstorms in the afternoon. .SATURDAY NIGHT...Northeast winds around 5 knots. Waves 1 foot or less. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. .SUNDAY...Northeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet in the afternoon. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Waves around 2 feet. A slight chance of thunderstorms in the evening. A chance of showers. .MONDAY...Northeast winds 5 to 10 knots. Waves around 2 feet. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Waves around 2 feet. A slight chance of showers and thunderstorms in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ534-290600- Lake Borgne- 1226 PM CDT Thu Aug 28 2025 .THIS AFTERNOON...Southeast winds around 5 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms. .TONIGHT...South winds 5 to 10 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .FRIDAY...South winds around 5 knots, becoming southeast in the afternoon. Waves 1 foot or less. A chance of thunderstorms. A chance of showers. .FRIDAY NIGHT...South winds 5 to 10 knots. Waves 1 foot or less. A chance of thunderstorms. A chance of showers. .SATURDAY...Northwest winds 5 to 10 knots, becoming north in the afternoon. Waves 1 foot or less. Showers, thunderstorms. .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 showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .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 around 2 feet. A slight chance of thunderstorms. A chance of showers, mainly in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ532-290600- Mississippi Sound- 1226 PM CDT Thu Aug 28 2025 .THIS AFTERNOON...Southeast winds around 5 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms late. .TONIGHT...South winds 5 to 10 knots. Waves 1 foot or less. A slight chance of showers. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. .FRIDAY...East winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet in the afternoon. A chance of thunderstorms. A chance of showers. .FRIDAY NIGHT...South winds 5 to 10 knots. Waves around 2 feet. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. .SATURDAY...Northwest winds 5 to 10 knots, becoming northeast in the afternoon. Waves around 2 feet in the morning, then 1 foot or less. Thunderstorms likely. Showers. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Waves around 2 feet. A chance of showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. .SUNDAY...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .SUNDAY NIGHT...Northeast winds around 10 knots. Waves around 2 feet. A slight chance of thunderstorms. A chance of showers. .MONDAY...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers and thunderstorms. .MONDAY NIGHT...Northeast winds around 10 knots. Waves around 2 feet. A chance of showers. A chance of thunderstorms, mainly in the evening. Winds and waves higher in and near thunderstorms. $$ GMZ536-538-290600- Chandeleur Sound-Breton Sound- 1226 PM CDT Thu Aug 28 2025 .THIS AFTERNOON...Southeast winds around 5 knots. Waves 1 foot or less. .TONIGHT...South winds 5 to 10 knots. Waves 1 foot or less. A slight chance of showers and thunderstorms after midnight. .FRIDAY...Southeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet in the afternoon. A chance of showers and thunderstorms. .FRIDAY NIGHT...South winds around 10 knots. Waves around 2 feet. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SATURDAY...West winds 5 to 10 knots, becoming north in the afternoon. Waves around 2 feet in the morning, then 1 foot or less. Showers with thunderstorms likely. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds around 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 2 to 3 feet. A chance of thunderstorms. Showers likely, mainly in the morning. .MONDAY NIGHT...Northeast winds around 10 knots. Waves 2 to 3 feet. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ555-557-290600- Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm- Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM- 1226 PM CDT Thu Aug 28 2025 .THIS AFTERNOON...East winds around 5 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 4 seconds. .TONIGHT...Southeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. .FRIDAY...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A chance of showers and thunderstorms, mainly in the morning. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 3 seconds and east 1 foot at 4 seconds. Showers, thunderstorms. .SATURDAY NIGHT...South winds 5 to 10 knots, becoming east after midnight. Seas 1 foot or less. Wave Detail: East 1 foot at 2 seconds and southwest 1 foot at 3 seconds. A chance of thunderstorms. Showers likely. .SUNDAY...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds. Showers likely with a chance of thunderstorms. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...Northeast winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 7 seconds and northeast 2 feet at 4 seconds. Showers likely with a chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ550-552-290600- 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 PM CDT Thu Aug 28 2025 .THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. .TONIGHT...Southeast 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 to 2 feet in the morning, then 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 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...Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: South 2 feet at 4 seconds. Showers and thunderstorms. .SATURDAY NIGHT...Northeast winds 5 to 10 knots, becoming east after midnight. Seas 1 to 2 feet. Wave Detail: Southwest 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...North winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 1 foot at 3 seconds and southwest 1 foot at 3 seconds. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SUNDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 1 foot at 3 seconds. 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. Wave Detail: Northeast 2 feet at 3 seconds. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds. 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. $$ GMZ575-577-290600- 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 PM CDT Thu Aug 28 2025 .THIS AFTERNOON...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 1 foot at 4 seconds. .TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 1 foot at 4 seconds. .FRIDAY...Southeast winds around 5 knots. Seas 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds and southeast 1 foot at 8 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds and south 1 foot at 3 seconds. Thunderstorms likely. Showers. .SATURDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 3 seconds and southeast 1 foot at 6 seconds. Showers likely with a chance of thunderstorms. .SUNDAY...North winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and southwest 1 foot at 3 seconds. Showers with a chance of thunderstorms. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 4 seconds and west 1 foot at 3 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .MONDAY...Northeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 4 seconds. Showers with a chance of thunderstorms. .MONDAY NIGHT...Northeast winds around 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 4 feet at 8 seconds and northeast 2 feet at 4 seconds. Showers likely. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ570-572-290600- 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 PM CDT Thu Aug 28 2025 .THIS AFTERNOON...East winds around 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 5 seconds. .TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. .FRIDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 4 seconds. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...South winds around 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. .SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. Showers with thunderstorms likely. .SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. 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 after midnight. .SUNDAY...Northwest winds around 10 knots, becoming north in the afternoon. Seas around 2 feet. Wave Detail: East 2 feet at 6 seconds and west 1 foot at 3 seconds. Showers. Thunderstorms likely, mainly in the morning. .SUNDAY NIGHT...Northeast winds around 10 knots. Seas around 2 feet. Wave Detail: North 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. .MONDAY...North winds around 10 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 4 seconds. A chance of thunderstorms. Showers likely. .MONDAY NIGHT...Northeast winds around 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and northeast 2 feet at 4 seconds. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Winds and seas higher in and near thunderstorms. $$