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Spring Severe Thunderstorms, Excessive Rainfall, and Heavy Snow Today

Scattered severe thunderstorms are expected this afternoon and evening from eastern Texas into the lower Mississippi and Tennessee Valleys/southern Appalachians. Heavy to excessive rainfall may produce flash flooding from the lower Mississippi River Valley into the southern Appalachians today. A late-season snowstorm will continue heavy snow over parts of the central Rockies through today. 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: 537 AM CDT Wed May 6 2026

Today: South winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 5 seconds.

Tonight: South winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas around 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 6 seconds.

Thursday: South winds 10 to 15 knots, becoming southwest 5 to 10 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 7 seconds.

Thursday Night: Southeast winds 5 to 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 7 seconds.

Friday: Southeast winds around 10 knots. Seas around 3 feet. Wave detail: south 3 feet at 7 seconds. A slight chance of showers and thunderstorms in the afternoon.

Friday Night: Southeast winds around 10 knots. Seas 2 to 3 feet. Wave detail: south 3 feet at 6 seconds. A slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight.

Saturday: Southeast winds around 10 knots. Seas 2 to 3 feet. Wave detail: south 3 feet at 7 seconds. A chance of showers and thunderstorms.

Saturday Night: Southeast winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 7 seconds. A slight chance of showers and thunderstorms.

Sunday: South winds 10 to 15 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 in the morning, then a chance of showers and thunderstorms in the afternoon.

Sunday Night: South winds 5 to 10 knots, becoming west after midnight. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 7 seconds. A slight chance of showers and thunderstorms.

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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