Coastal Waters from Stake Island LA to Southwest Pass of the Mississippi River from 20 to 60 nm GMZ575

 
 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.
 
 $$



 
 GMZ575-052300-
 Coastal Waters from Stake Island LA to Southwest Pass of the
 Mississippi River from 20 to 60 nm-
 536 AM CDT Wed Aug 5 2026
 

 TODAY
 Southwest winds around 5 knots, becoming south late. Seas
 1 foot or less. Wave Detail: Southwest 1 foot at 4 seconds. A slight
 chance of showers and thunderstorms late this morning.

 TONIGHT
 South 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
 East winds 5 to 10 knots. Seas 1 foot or less, then
 around 2 feet in the afternoon. Wave Detail: Southeast 1 foot at
 4 seconds and south 1 foot at 9 seconds, becoming east 1 foot at
 4 seconds and south 1 foot at 9 seconds.

 THURSDAY NIGHT
 East winds 5 to 10 knots. Seas around 2 feet. Wave
 Detail: East 2 feet at 4 seconds and south 1 foot at 8 seconds.

 FRIDAY
 East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
 East 3 feet at 5 seconds. A chance of showers and thunderstorms.

 FRIDAY NIGHT
 East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
 Detail: East 3 feet at 6 seconds. A chance of showers and
 thunderstorms after midnight.

 SATURDAY
 East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
 East 3 feet at 6 seconds. A chance of showers and thunderstorms.

 SATURDAY NIGHT
 Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
 Wave Detail: Southeast 3 feet at 6 seconds. A 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. Showers and thunderstorms likely,
 mainly in the morning.

 SUNDAY NIGHT
 Southeast winds 5 to 10 knots. Seas around 2 feet.
 Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of
 showers and thunderstorms after midnight.
 
 Winds and seas higher in and near thunderstorms.
 
 $$