Chart / Forecasts

Lake Maurepas

GMZ529 · Coastal Waters Forecast · National Weather Service New Orleans LA · Issued 248 PM CDT Sat Oct 3 2026
Spoken by your device's own voice. Nothing is sent anywhere.
Forecast
This Afternoon
East winds around 10 knots. Seas around 2 feet. Thunderstorms likely. Showers.
Tonight
East winds 5 to 10 knots. Seas 1 foot or less. Showers likely with a chance of thunderstorms in the evening, then showers with a slight chance of thunderstorms after midnight.
Sunday
Northeast winds around 5 knots. Seas 1 foot or less. Showers with a chance of thunderstorms.
Sunday Night
Northeast winds 5 to 10 knots. Seas 1 foot or less, then around 2 feet after midnight. A chance of thunderstorms in the evening. A chance of showers.
Monday
Northeast winds 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the afternoon.
Monday Night
Northeast winds 5 to 10 knots. Seas around 2 feet.
Tuesday
Northeast winds 5 to 10 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms in the afternoon.
Tuesday Night
Northeast winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 2 to 3 feet after midnight.
Wednesday
Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wednesday Night
Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Winds and seas higher in and near thunderstorms.
Synopsis
A tightening pressure gradient over the coastal waters will form in response to a developing low pressure system in the western Gulf. This will allow southeast winds to remain elevated near 15 knots with higher gusts today. Very choppy seas of 4 to 6 feet will accompany these winds in the open Gulf waters. The lakes and sounds will see slightly lower winds closer to 10 knots and choppy conditions. Winds will briefly relax to 10 knots or less on Sunday as a front stalls along the coast. This front is expected to then slowly push through the waters on Monday and Tuesday. Winds will turn northeasterly behind the front and increase back to 15 to 20 knots as cooler and drier air advects over the warm waters. Another low will form along the front by Wednesday, and this should increase winds in small craft advisory range of 20 to 25 knots through the end of the week. Seas will also increase to 5 to 7 feet by Wednesday and remain at those levels through the end of the week.
Source: National Weather Service Coastal Waters Forecast (CWF), issued 248 PM CDT Sat Oct 3 2026, valid until Sun, 04 Oct 2026 08:00 UTC. Original text · All zones