Areas of Excessive Rainfall; Watching for Tropical Cyclone Development in the Atlantic
Heavy to excessive rainfall Wednesday may bring areas of flash and urban flooding over portions of the Ohio and Tennessee Valleys. In Arizona and New Mexico, heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding Thursday into Saturday. Two tropical waves in the Atlantic are being monitored for tropical cyclone formation within the next few days. Read More >
| NWS Forecast for: Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm (GMZ555) Issued by: National Weather Service New Orleans/Baton Rouge, LA Last Update: 701 PM CDT Tue Sep 23 2025 | |
| Tonight: South winds 5 to 10 knots. Seas 1 foot or less. Wednesday: South winds 5 to 10 knots. Seas 1 foot or less. Wednesday Night: Southwest winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A chance of thunderstorms with a slight chance of showers after midnight. Thursday: West winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Thursday Night: West winds around 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers. Friday: Northwest winds 5 to 10 knots. Seas around 2 feet. A chance of thunderstorms. Showers likely, mainly in the morning. Friday Night: Northwest winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of thunderstorms. A chance of showers, mainly in the evening. Saturday: North winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. A slight chance of thunderstorms in the afternoon. Saturday Night: North winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A slight chance of showers. Sunday: Northeast winds 5 to 10 knots. Seas around 2 feet. A slight chance of showers. Sunday Night: Northeast winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers. winds and seas higher in and near thunderstorms. | |
| Zone Forecast: Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm (GMZ555) | |
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