Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Coastal Waters Forecast for Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm (GMZ575) (Text-Only)
NWS Forecast for: Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm (GMZ575)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 937 AM CDT Tue Jun 16 2026
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Rest Of Today: Southwest winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 5 seconds. A slight chance of showers and thunderstorms late this morning, then a chance of showers and thunderstorms this afternoon.

Tonight: South winds 15 to 20 knots with gusts up to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: south 5 feet at 6 seconds. A chance of showers and thunderstorms in the evening.

Wednesday: South winds 15 to 20 knots with gusts up to 25 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave detail: south 5 feet at 7 seconds. A slight chance of thunderstorms. A chance of showers, mainly in the morning.

Wednesday Night: South winds 15 to 20 knots, increasing to 20 to 25 knots after midnight. Seas 5 to 6 feet, occasionally to 8 feet, building to 6 to 8 feet, occasionally to 10 feet after midnight. Wave detail: south 6 feet at 7 seconds, becoming south 8 feet at 7 seconds.

Thursday: South winds 20 to 25 knots with gusts up to 30 knots. Seas 7 to 8 feet, occasionally to 10 feet. Wave detail: south 8 feet at 8 seconds. A slight chance of showers and thunderstorms in the morning.

Thursday Night: South winds 20 to 25 knots. Seas 7 to 8 feet, occasionally to 10 feet. Wave detail: south 8 feet at 8 seconds.

Friday: South winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave detail: south 7 feet at 7 seconds.

Friday Night: South winds 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: south 5 feet at 8 seconds. A slight chance of showers and thunderstorms.

Saturday: Southwest winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 7 seconds. A slight chance of showers and thunderstorms.

Saturday Night: South winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas around 3 feet. Wave detail: south 3 feet at 6 seconds.

winds and seas higher in and near thunderstorms.







Zone Forecast: Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm (GMZ575)

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