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.
$$
GMZ577-060800-
Coastal waters from Pascagoula Mississippi to Stake Island Louisiana
out 20 to 60 NM-
201 PM CDT Wed Aug 5 2026
THIS AFTERNOON
South winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds and south 1 foot at
8 seconds.
TONIGHT
South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 3 seconds and south 1 foot at 9 seconds.
THURSDAY
Southeast winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 4 seconds and south 1 foot at
9 seconds.
THURSDAY NIGHT
Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 1 foot at 4 seconds and south 1 foot at
9 seconds.
FRIDAY
East winds 5 to 10 knots, increasing to 10 to 15 knots in
the afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at
4 seconds and south 1 foot at 9 seconds. A chance of showers. A
chance of thunderstorms, mainly in the morning.
FRIDAY NIGHT
East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 5 seconds and south 1 foot at 9 seconds. A
slight chance of showers and thunderstorms after midnight.
SATURDAY
East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 6 seconds. A chance of showers and thunderstorms,
mainly in the morning.
SATURDAY NIGHT
Southeast winds around 5 knots. Seas around
2 feet. Wave Detail: East 2 feet at 6 seconds. A slight chance of
showers and thunderstorms after midnight.
SUNDAY
Southeast winds around 5 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 6 seconds. A chance of showers and
thunderstorms, mainly in the morning.
SUNDAY NIGHT
Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds. A slight chance of
showers and thunderstorms after midnight.
Winds and seas higher in and near thunderstorms.
$$
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