GMZ500-GMZ501-301500-
931 PM CDT Fri May 29 2026
.SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM...
A broad surface high pressure system will remain parked over the
coastal waters through next Tuesday. This will keep winds light and
variable at 10 knots or less and seas calm at 2 feet or less through
the weekend and into early next week. A few storms may pop up each
day with locally gusty winds, but overall rain chances will remain
low through Tuesday. A deep upper level trough will dig southward
across the Eastern Seaboard and shift that ridge westward and
attempt to send a backdoor front to the coastal waters. Latest
guidance suggests that the boundary stalls right as it reaches the
MS sound due to the proximity of the trough axis in relation to the
local area. Thus, expect wind field to weaken considerably next week
due to weak pressure pattern in place. A new surface ridge will then
build in from the east, which will bring the return of steady
southeast winds across all coastal waters. Thunderstorm chances will
also increase with more numerous showers and thunderstorms forming
over the waters.
$$
GMZ575-301500- Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm- 931 PM CDT Fri May 29 2026 OVERNIGHT Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. SATURDAY Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds and south 2 feet at 7 seconds. A slight chance of showers and thunderstorms in the morning. SATURDAY NIGHT Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 5 seconds and south 1 foot at 8 seconds. SUNDAY Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds and south 1 foot at 9 seconds. SUNDAY NIGHT South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 5 seconds. MONDAY West winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 6 seconds. A slight chance of showers and thunderstorms in the morning. MONDAY NIGHT West winds around 5 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: West 1 foot at 3 seconds and south 1 foot at 6 seconds, becoming south 1 foot at 6 seconds. A slight chance of showers and thunderstorms after midnight. TUESDAY Northwest winds around 5 knots. Seas around 2 feet. Wave Detail: Northwest 1 foot at 3 seconds and south 1 foot at 7 seconds. A chance of showers and thunderstorms, mainly in the morning. TUESDAY NIGHT Northwest winds around 5 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds and south 1 foot at 6 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. WEDNESDAY East winds 5 to 10 knots. Seas 1 foot or less, then 2 to 3 feet in the afternoon. Wave Detail: North 1 foot at 3 seconds and southeast 1 foot at 7 seconds, becoming east 3 feet at 7 seconds and west 1 foot at 3 seconds. A chance of showers and thunderstorms. WEDNESDAY NIGHT Southeast winds 5 to 10 knots. Seas around 3 feet. A chance of showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$
GMZ575-301500- Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm- 931 PM CDT Fri May 29 2026 OVERNIGHT Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: South 2 feet at 6 seconds. SATURDAY Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 2 feet at 4 seconds and south 2 feet at 7 seconds. A slight chance of showers and thunderstorms in the morning. SATURDAY NIGHT Southwest winds 5 to 10 knots. Seas around 2 feet. Wave Detail: Southwest 1 foot at 5 seconds and south 1 foot at 8 seconds. SUNDAY Southwest winds around 5 knots. Seas 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds and south 1 foot at 9 seconds. SUNDAY NIGHT South winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 5 seconds. MONDAY West winds around 5 knots. Seas 1 foot or less. Wave Detail: South 1 foot at 6 seconds. A slight chance of showers and thunderstorms in the morning. MONDAY NIGHT West winds around 5 knots. Seas 1 foot or less, then around 2 feet after midnight. Wave Detail: West 1 foot at 3 seconds and south 1 foot at 6 seconds, becoming south 1 foot at 6 seconds. A slight chance of showers and thunderstorms after midnight. TUESDAY Northwest winds around 5 knots. Seas around 2 feet. Wave Detail: Northwest 1 foot at 3 seconds and south 1 foot at 7 seconds. A chance of showers and thunderstorms, mainly in the morning. TUESDAY NIGHT Northwest winds around 5 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds and south 1 foot at 6 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. WEDNESDAY East winds 5 to 10 knots. Seas 1 foot or less, then 2 to 3 feet in the afternoon. Wave Detail: North 1 foot at 3 seconds and southeast 1 foot at 7 seconds, becoming east 3 feet at 7 seconds and west 1 foot at 3 seconds. A chance of showers and thunderstorms. WEDNESDAY NIGHT Southeast winds 5 to 10 knots. Seas around 3 feet. A chance of showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$