GMZ500-GMZ501-060800-
201 PM CDT Wed Aug 5 2026
.SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM...
Surface high-pressure axis over the southern Gulf is being absorbed
by the Bermuda ridge. 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
will alter flow to more of a south to southeast direction Thursday
and then southeasterly to easterly 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 an easterly
fetch becomes better established late in the week. Seas will
generally remain 1 to 2 feet through Thursday.
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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