GMZ500-GMZ501-032300-
437 AM CST Wed Dec 3 2025
.SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM...
High pressure has moved in but will continue to sliding east quickly
leading to light return flow by midday/early afternoon today. Weak
low pressure will begin to develop along the Texas coast tonight and
slowly drift east-northeast Thursday along the coast. This will
tighten the pressure gradient especially east of the Mississippi
River delta. Winds will increase with moderate to strong east-
southeast to easterly winds. This will have multiple impacts with
Small Craft Advisory conditions expected Thursday into Friday but
the increase in onshore winds will combine with the increasing tidal
cycle at the end of the week likely leading to at least some minor
coastal flooding. Main concern will be east facing shores of
Orleans, St Bernard, Plaquemines, and far southeastern St Tammany.
In addition coastal Hancock around Waveland will also deal with some
minor coastal flooding Thursday night through Friday morning. Winds
will relax and return to offshore late Friday and Friday night but
another weak surface low will develop Saturday moving across the
coastal waters late Saturday bringing another brief period of
moderate to strong winds.
$$
GMZ550-552-032300- Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm- Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM- 437 AM CST Wed Dec 3 2025 TODAY East winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at 3 seconds and southeast 1 foot at 6 seconds. TONIGHT East winds 10 to 15 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A slight chance of showers in the evening, then a chance of showers after midnight. THURSDAY East winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 4 seconds. Showers with a slight chance of thunderstorms. THURSDAY NIGHT East winds 15 to 20 knots, becoming southeast 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds and south 1 foot at 5 seconds. Showers likely with a slight chance of thunderstorms. FRIDAY Northwest winds 10 to 15 knots with gusts up to 20 knots. Seas 1 to 2 feet, building to 2 to 3 feet in the afternoon. Wave Detail: South 2 feet at 5 seconds, becoming south 2 feet at 5 seconds and north 1 foot at 3 seconds. A slight chance of thunderstorms. Showers. FRIDAY NIGHT Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 1 to 2 feet. Wave Detail: Northeast 2 feet at 3 seconds and south 1 foot at 5 seconds. Showers. SATURDAY Northeast winds around 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 2 feet at 3 seconds and south 1 foot at 5 seconds. Showers likely with a slight chance of thunderstorms. SATURDAY NIGHT Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 3 seconds and south 1 foot at 5 seconds. A chance of showers and thunderstorms. SUNDAY North winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the morning. SUNDAY NIGHT North winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 2 to 4 feet, occasionally to 5 feet after midnight. Wave Detail: Southeast 1 foot at 5 seconds, becoming north 2 feet at 3 seconds and southeast 1 foot at 5 seconds. Winds and seas higher in and near thunderstorms. $$
GMZ550-552-032300- Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm- Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM- 437 AM CST Wed Dec 3 2025 TODAY East winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at 3 seconds and southeast 1 foot at 6 seconds. TONIGHT East winds 10 to 15 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds. A slight chance of showers in the evening, then a chance of showers after midnight. THURSDAY East winds 15 to 20 knots with gusts up to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 4 seconds. Showers with a slight chance of thunderstorms. THURSDAY NIGHT East winds 15 to 20 knots, becoming southeast 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds and south 1 foot at 5 seconds. Showers likely with a slight chance of thunderstorms. FRIDAY Northwest winds 10 to 15 knots with gusts up to 20 knots. Seas 1 to 2 feet, building to 2 to 3 feet in the afternoon. Wave Detail: South 2 feet at 5 seconds, becoming south 2 feet at 5 seconds and north 1 foot at 3 seconds. A slight chance of thunderstorms. Showers. FRIDAY NIGHT Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Seas 1 to 2 feet. Wave Detail: Northeast 2 feet at 3 seconds and south 1 foot at 5 seconds. Showers. SATURDAY Northeast winds around 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast 2 feet at 3 seconds and south 1 foot at 5 seconds. Showers likely with a slight chance of thunderstorms. SATURDAY NIGHT Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: Northeast 2 feet at 3 seconds and south 1 foot at 5 seconds. A chance of showers and thunderstorms. SUNDAY North winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 4 seconds. A slight chance of showers and thunderstorms in the morning. SUNDAY NIGHT North winds 5 to 10 knots, increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet, building to 2 to 4 feet, occasionally to 5 feet after midnight. Wave Detail: Southeast 1 foot at 5 seconds, becoming north 2 feet at 3 seconds and southeast 1 foot at 5 seconds. Winds and seas higher in and near thunderstorms. $$