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The Work Week will Begin with Unsettled Weather from the Southern Plains to the Great Lakes

Unsettled weather is forecast to continue through the first half of the work week from the Southern Plains to the Great Lakes as a frontal system moves through. Isolated to scattered severe thunderstorms and flash flooding will be possible each day. Meanwhile, scattered showers and thunderstorms are expected across the Southwest and California, with isolated flash flooding possible. Read More >

Coastal Waters Forecast for Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM (GMZ570) (Text-Only)
NWS Forecast for: Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM (GMZ570)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 701 PM CDT Sun Sep 21 2025		Print

Tonight: Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers. A slight chance of thunderstorms early this evening. A slight chance of thunderstorms late.

Monday: Southeast winds around 10 knots. Seas around 2 feet. A chance of showers and thunderstorms.

Monday Night: Southeast winds around 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms.

Tuesday: Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon.

Tuesday Night: Southeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers.

Wednesday: South winds 5 to 10 knots. Seas around 2 feet. A chance of showers. A slight chance of thunderstorms in the afternoon.

Wednesday Night: Southwest winds 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms.

Thursday: West winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers.

Thursday Night: West winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely.

Friday: Northwest winds around 10 knots. Seas around 2 feet. A chance of showers. A chance of thunderstorms, mainly in the morning.

Friday Night: Northwest winds 5 to 10 knots. Seas around 2 feet. A chance of showers.

winds and seas higher in and near thunderstorms.






Zone Forecast: Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM (GMZ570)

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