Marine Weather Message
Issued by NWS New Orleans/Baton Rouge, LA

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051
WHUS74 KLIX 220311
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
1011 PM CDT Tue Jul 21 2026

GMZ531>536-541-543-551-553-554-557-570-572-575-577-221715-
/O.CON.KLIX.TR.W.1002.000000T0000Z-000000T0000Z/
Lake Pontchartrain-Mississippi Sound-
Lake Salvador and Lake Cataouatche-Lake Borgne-Breton Sound-
Chandeleur Sound-Terrebonne Bay-Barataria Bay-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River
LA out 20 nm-
Coastal Waters from Southwest Pass of the Mississippi River to
Port Fourchon LA out 20 nm-
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-
Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya
River LA from 20 to 60 NM-
Coastal waters from Southwest Pass of the Mississippi River to
Port Fourchon Louisiana from 20 to 60 NM-
Coastal Waters from Stake Island LA to Southwest Pass of the
Mississippi River from 20 to 60 nm-
Coastal waters from Pascagoula Mississippi to Stake Island
Louisiana out 20 to 60 NM-
1011 PM CDT Tue Jul 21 2026

...TROPICAL STORM WARNING REMAINS IN EFFECT...

* WHAT...Southwest winds 25 to 35 kt with gusts up to 55 kt and
  seas 8 to 13 ft.

* WHERE...Portions of Gulf of America.

* WHEN...Tropical Storm force winds possible until Wednesday
  evening.

* IMPACTS...Tropical storm force winds and hazardous seas will
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

GMZ529-221715-
/O.CON.KLIX.TR.A.1002.000000T0000Z-000000T0000Z/
Lake Maurepas-
1011 PM CDT Tue Jul 21 2026

...TROPICAL STORM WATCH REMAINS IN EFFECT...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt.

* WHERE...Lake Maurepas.

* WHEN...Tropical Storm force winds possible until Wednesday
  night.

* IMPACTS...Tropical storm force winds and hazardous seas could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions. Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and seas.

&&

$$