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

 
 GMZ500-GMZ501-081615-
 1045 PM CDT Wed Oct 7 2026
 
 
 .SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM...
 
 Strong high pressure across much of the Plains will keep
 northeasterly winds over the coastal waters. Meanwhile, the winds
 aloft will be from the southwest keeping an overrunning pattern that
 will bring scattered showers across the Gulf waters through the
 daytime hours Thursday.
 
 Marine conditions will slowly deteriorate through the remainder of
 the week. Depending on the eventual track and strength of Hurricane
 Isaias, winds across the open waters are expected to rise to tropical
 storm or hurricane force driving heavy seas and shift from easterly
 to northerly and northwesterly Friday into Saturday before easing.
 
 $$



 
 GMZ575-081615-
 Coastal Waters from Stake Island LA to Southwest Pass of the
 Mississippi River from 20 to 60 nm-
 1045 PM CDT Wed Oct 7 2026
 
 HURRICANE WARNING IN EFFECT
 

 OVERNIGHT
 Tropical storm conditions possible with hurricane
 conditions also possible. Northeast winds 20 to 25 knots. Seas 7 to
 8 feet, occasionally to 10 feet. Wave Detail: Northeast 7 feet at
 7 seconds. Showers likely with a chance of thunderstorms.

 THURSDAY
 Tropical storm conditions possible with hurricane
 conditions also possible. Northeast winds 20 to 25 knots, becoming
 east 25 to 30 knots in the afternoon. Seas 8 to 9 feet, occasionally
 to 11 feet. Wave Detail: Northeast 8 feet at 7 seconds. A chance of
 thunderstorms. Showers.

 THURSDAY NIGHT
 Tropical storm conditions expected with hurricane
 conditions possible. East winds 25 to 30 knots with gusts up to
 40 knots. Seas 9 to 12 feet, occasionally to 15 feet, building to
 12 to 13 feet, occasionally to 17 feet after midnight. Wave Detail:
 East 11 feet at 9 seconds. A chance of thunderstorms. Showers likely
 in the evening, then showers after midnight.

 FRIDAY
 Tropical storm conditions expected with hurricane
 conditions possible. East winds 25 to 35 knots, becoming northeast
 30 to 40 knots in the afternoon. Gusts up to 60 knots. Seas 13 to
 16 feet, occasionally to 20 feet, building to 16 to 21 feet,
 occasionally to 27 feet in the afternoon. Wave Detail: Northeast
 21 feet at 12 seconds. Showers with a chance of thunderstorms.

 FRIDAY NIGHT
 Tropical storm conditions possible. Northeast winds
 around 30 knots, becoming south after midnight. Gusts up to
 55 knots. Seas 16 to 21 feet, occasionally to 27 feet, subsiding to
 11 to 15 feet, occasionally to 19 feet after midnight. Wave Detail:
 Northeast 21 feet at 12 seconds. Showers with a chance of
 thunderstorms.

 SATURDAY
 Tropical storm conditions possible.

 SATURDAY NIGHT
 Tropical storm conditions possible. Wave Detail:
 Southeast 4 feet at 7 seconds and west 2 feet at 5 seconds. Showers
 likely with a slight chance of thunderstorms early in the evening,
 then a chance of showers in the late evening and overnight.

 SUNDAY
 West winds 10 to 15 knots, becoming northeast 5 to
 10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: East
 3 feet at 6 seconds and west 1 foot at 5 seconds. A chance of
 showers.

 SUNDAY NIGHT
 East winds 5 to 10 knots. Seas around 2 feet. Wave
 Detail: East 2 feet at 5 seconds and west 1 foot at 4 seconds. A
 chance of showers early in the evening. A chance of showers after
 midnight.

 MONDAY
 Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
 Detail: East 2 feet at 5 seconds. A chance of showers until late
 afternoon, then a slight chance of showers late.

 MONDAY NIGHT
 East winds around 5 knots. Seas 1 foot or less. A
 slight chance of showers early in the evening.
 
 Winds and seas higher in and near thunderstorms.
 
 $$