Coastal Waters Forecast
Issued by NWS New Orleans/Baton Rouge, LA
Issued by NWS New Orleans/Baton Rouge, LA
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810 FZUS54 KLIX 202237 CWFLIX Coastal Waters Forecast National Weather Service New Orleans LA 437 PM CST Thu Nov 20 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-GMZ501-211100- 437 PM CST Thu Nov 20 2025 .SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM... Overall not a lot of impacts in the forecast for the coastal waters. A low pressure system will pass well north of the region tomorrow and Friday night. This will try to push a cold front into the area but the front will likely stall along or north of the coast. Southerly winds will increase to around 15 knots with slightly higher seas tonight and tomorrow. Scattered showers and a low threat of thunderstorm will accompany this weakening front on Friday and Friday evening. Winds will calm over the weekend to less than 10 knots as a high pressure system over the eastern Gulf becomes more dominant over the waters. However, another low pressure system will once again push winds and seas higher on Monday and Tuesday. Southerly flow should increase back into the 15 to 20 knot range over this period. Another round of showers and a few thunderstorms will also develop over the waters as this next storm system moves through. $$ GMZ530-211100- Lake Pontchartrain and Lake Maurepas- 437 PM CST Thu Nov 20 2025 .TONIGHT...Southeast winds 5 to 10 knots. Waves around 2 feet. A slight chance of showers late. .FRIDAY...South winds 5 to 10 knots. Waves around 2 feet. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less. .SATURDAY...West winds around 5 knots. Waves 1 foot or less. Patchy dense fog. .SATURDAY NIGHT...West winds around 5 knots, becoming north after midnight. Waves 1 foot or less. .SUNDAY...East winds around 5 knots. Waves 1 foot or less. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less. .MONDAY...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Waves 2 to 3 feet. .MONDAY NIGHT...South winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY...South winds 10 to 15 knots, becoming southwest 5 to 10 knots in the afternoon. Waves 2 to 3 feet. A chance of showers. A slight chance of thunderstorms in the afternoon. .TUESDAY NIGHT...Southwest winds 5 to 10 knots, becoming west after midnight. Waves 1 foot or less. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$ GMZ534-211100- Lake Borgne- 437 PM CST Thu Nov 20 2025 .TONIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less. .FRIDAY...South winds around 10 knots. Waves around 2 feet. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less. .SATURDAY...West winds around 5 knots. Waves 1 foot or less. Patchy fog in the afternoon. .SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming north after midnight. Waves 1 foot or less. .SUNDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Waves 1 foot or less. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less. .MONDAY...Southeast winds 10 to 15 knots. Waves 2 to 3 feet. .MONDAY NIGHT...Southeast winds 10 to 15 knots, becoming south 15 to 20 knots after midnight. Waves 2 to 3 feet. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY...South winds 10 to 15 knots. Waves 2 to 3 feet. A chance of showers. .TUESDAY NIGHT...South winds around 10 knots, becoming west after midnight. Waves around 2 feet. A slight chance of showers. Winds and waves higher in and near thunderstorms. $$ GMZ532-211100- Mississippi Sound- 437 PM CST Thu Nov 20 2025 .TONIGHT...Southeast winds 5 to 10 knots. Waves around 2 feet. .FRIDAY...South winds around 10 knots. Waves around 2 feet. A chance of showers. A slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less. .SATURDAY...West winds 5 to 10 knots. Waves 1 foot or less. Patchy dense fog in the afternoon. .SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming north after midnight. Waves 1 foot or less. .SUNDAY...Northeast winds 5 to 10 knots, becoming southeast in the afternoon. Waves 1 foot or less. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less. .MONDAY...East winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Waves 2 to 3 feet. .MONDAY NIGHT...South winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY...South winds 10 to 15 knots. Waves around 3 feet. A chance of showers. A slight chance of thunderstorms in the afternoon. .TUESDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet. A chance of showers. A slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms. $$ GMZ536-538-211100- Chandeleur Sound-Breton Sound- 437 PM CST Thu Nov 20 2025 .TONIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less, then around 2 feet after midnight. .FRIDAY...South winds around 10 knots. Waves around 2 feet. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Waves around 2 feet in the evening, then 1 foot or less. .SATURDAY...West winds around 5 knots. Waves 1 foot or less. .SATURDAY NIGHT...Southwest winds 5 to 10 knots, becoming northwest after midnight. Waves 1 foot or less. .SUNDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Waves 1 foot or less. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Waves 1 foot or less. .MONDAY...Southeast winds 5 to 10 knots. Waves around 2 feet. .MONDAY NIGHT...South winds 10 to 15 knots. Waves 2 to 3 feet. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY...South winds 10 to 15 knots. Waves 2 to 3 feet. A chance of showers. .TUESDAY NIGHT...South winds around 10 knots, becoming southwest after midnight. Waves around 2 feet. A chance of showers. Winds and waves higher in and near thunderstorms. $$ GMZ555-557-211100- Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm- Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM- 437 PM CST Thu Nov 20 2025 .TONIGHT...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds. .FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers and thunderstorms in the afternoon. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. .SATURDAY...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. Patchy dense fog in the afternoon. .SATURDAY NIGHT...West winds 5 to 10 knots, becoming northwest after midnight. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .SUNDAY...Northeast winds 5 to 10 knots, becoming east in the afternoon. Seas around 2 feet. Wave Detail: Northeast 1 foot at 2 seconds and northwest 1 foot at 2 seconds. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 6 seconds. .MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 3 seconds and southeast 2 feet at 6 seconds. .MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 4 seconds. A slight chance of showers. .TUESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 5 seconds. A chance of showers. A slight chance of thunderstorms in the afternoon. .TUESDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ550-552-211100- 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- 437 PM CST Thu Nov 20 2025 .TONIGHT...Southeast winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of showers late this evening. A chance of showers with a slight chance of thunderstorms after midnight. .FRIDAY...South winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 4 feet at 6 seconds. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .SATURDAY...West winds around 5 knots. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. .SATURDAY NIGHT...West winds around 5 knots, becoming northwest after midnight. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. .SUNDAY...Northeast winds around 5 knots, becoming east in the afternoon. Seas 1 to 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. .SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: South 2 feet at 6 seconds. .MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. .MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 4 feet at 5 seconds. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY...South winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: South 3 feet at 6 seconds. A chance of showers, mainly in the morning. .TUESDAY NIGHT...South winds 5 to 10 knots, becoming west after midnight. Seas around 2 feet. A slight chance of showers. Winds and seas higher in and near thunderstorms. $$ GMZ575-577-211100- Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm- Coastal waters from Pascagoula Mississippi to Stake Island Louisiana out 20 to 60 NM- 437 PM CST Thu Nov 20 2025 .TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 7 seconds. .FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. .FRIDAY NIGHT...South winds around 10 knots. Seas 2 to 3 feet. Wave Detail: South 3 feet at 6 seconds. .SATURDAY...Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: South 2 feet at 6 seconds. .SATURDAY NIGHT...West winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .SUNDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds and north 1 foot at 2 seconds. .SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds and northeast 1 foot at 3 seconds. .MONDAY...Southeast winds around 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 5 seconds. .MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 5 seconds. A slight chance of showers after midnight. .TUESDAY...South winds 10 to 15 knots. Seas around 3 feet. Wave Detail: South 3 feet at 5 seconds. A chance of showers. A slight chance of thunderstorms in the afternoon. .TUESDAY NIGHT...South winds around 10 knots. Seas around 3 feet. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$ GMZ570-572-211100- 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- 437 PM CST Thu Nov 20 2025 .TONIGHT...Southeast winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 5 feet at 7 seconds. A chance of showers. A slight chance of thunderstorms late this evening and overnight. .FRIDAY...South winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of showers with a slight chance of thunderstorms. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers and thunderstorms in the evening. .SATURDAY...Northwest winds around 5 knots. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at 6 seconds. A slight chance of showers in the morning. .SATURDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southeast 2 feet at 6 seconds. .SUNDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .SUNDAY NIGHT...Southeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. .MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 6 seconds. .MONDAY NIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of showers in the evening, then a chance of showers after midnight. .TUESDAY...South winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: South 4 feet at 6 seconds. A chance of showers. .TUESDAY NIGHT...South winds around 10 knots. Seas around 3 feet. A slight chance of showers in the evening, then a chance of showers after midnight. Winds and seas higher in and near thunderstorms. $$