GMZ500-GMZ501-052300-
536 AM CDT Wed Aug 5 2026
.SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM...
Surface high-pressure axis over the southern Gulf will become
absorbed by the Bermuda ridge as the week progresses. This will
alter flow to more of a south to southeast direction Thursday
through the weekend. Speeds should generally remain around 5 to
10 knots, although periods of 10 to 15 knots will be possible over
the outer waters as the easterly fetch becomes better established
late in the week. Seas will generally remain 1 to 2 feet through
Thursday.
The low-level pressure gradient may tighten slightly Friday into the
weekend as surface high pressure becomes better established over the
eastern Gulf while lower pressures persist over the southern Plains
and lower Mississippi Valley. This should result in a more
consistent south to southwest flow, generally around 10 to 15 knots
which will support 2-3 ft seas. Increasing Gulf moisture will also
bring a gradual increase in showers and thunderstorms beginning
Thursday and continuing through the weekend and into early next
week. Convection will be most common, in typical summertime fashion,
over the coastal waters during the overnight and morning hours. Then
activity shifts inland with the developing sea breeze during the
afternoons.
$$
GMZ555-557-162300-
Coastal Waters from Boothville LA to Southwest Pass of the
Mississippi River out 20 nm-
Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM-
536 AM CDT Thu Apr 16 2026
TODAY
Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 7 seconds.
TONIGHT
South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
FRIDAY
Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
FRIDAY NIGHT
South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
SATURDAY
South winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 5 seconds.
SATURDAY NIGHT
South winds 5 to 10 knots, becoming west 10 to
15 knots with gusts up to 20 knots after midnight. Seas around
2 feet. Wave Detail: West 2 feet at 4 seconds and southeast 1 foot
at 5 seconds. A slight chance of showers and thunderstorms after
midnight.
SUNDAY
North winds 15 to 20 knots, becoming northeast 20 to
25 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet.
Wave Detail: North 5 feet at 4 seconds. A slight chance of showers
and thunderstorms in the morning.
SUNDAY NIGHT
Northeast winds 20 to 25 knots. Seas 3 to 5 feet,
occasionally to 6 feet, building to 5 to 7 feet, occasionally to
9 feet after midnight. Wave Detail: Northeast 5 feet at 5 seconds,
becoming northeast 7 feet at 6 seconds.
MONDAY
Northeast winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Northeast 7 feet at 7 seconds.
MONDAY NIGHT
East winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds.
Winds and seas higher in and near thunderstorms.
$$
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