887
WHUS74 KLIX 212119
MWWLIX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE NEW ORLEANS LA
419 PM CDT TUE JUL 21 2026
GMZ531-533-541-551-570-221130-
/O.UPG.KLIX.TR.A.1002.000000T0000Z-000000T0000Z/
/O.EXA.KLIX.TR.W.1002.000000T0000Z-000000T0000Z/
LAKE PONTCHARTRAIN-LAKE SALVADOR AND LAKE CATAOUATCHE-
TERREBONNE BAY-
COASTAL WATERS FROM PORT FOURCHON LA TO LOWER ATCHAFALAYA RIVER
LA OUT 20 NM-
COASTAL WATERS FROM PORT FOURCHON LOUISIANA TO LOWER ATCHAFALAYA
RIVER LA FROM 20 TO 60 NM-
419 PM CDT TUE JUL 21 2026
..TROPICAL STORM WARNING IN EFFECT
* WHAT...SOUTHWEST WINDS 25 TO 35 KT WITH GUSTS UP TO 55 KT AND
SEAS 7 TO 10 FT.
* WHERE...LAKE PONTCHARTRAIN, LAKE SALVADOR AND LAKE CATAOUATCHE,
TERREBONNE BAY, COASTAL WATERS FROM PORT FOURCHON LA TO LOWER
ATCHAFALAYA RIVER LA OUT 20 TO 60 NAUTICAL MILES.
* WHEN...TROPICAL STORM FORCE WINDS POSSIBLE FROM WEDNESDAY
AFTERNOON UNTIL EARLY THURSDAY MORNING.
* 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.
GMZ532-534>536-543-553-554-557-572-575-577-221130-
/O.CON.KLIX.TR.W.1002.000000T0000Z-000000T0000Z/
MISSISSIPPI SOUND-LAKE BORGNE-BRETON SOUND-CHANDELEUR SOUND-
BARATARIA BAY-
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 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-
419 PM CDT TUE JUL 21 2026
..TROPICAL STORM WARNING REMAINS IN EFFECT
* WHAT...SOUTHWEST WINDS 30 TO 40 KT WITH GUSTS UP TO 55 KT AND
SEAS 8 TO 13 FT.
* WHERE...PORTIONS OF THE GULF INCLUDING LAKE BORGNE, BRETON
SOUND, CHANDELEUR SOUND.
* WHEN...TROPICAL STORM FORCE WINDS POSSIBLE UNTIL WEDNESDAY
AFTERNOON.
* 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.
GMZ529-221130-
/O.CON.KLIX.TR.A.1002.000000T0000Z-000000T0000Z/
LAKE MAUREPAS-
419 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...PORTIONS OF THE GULF SOUTH AND WEST OF PORT FOURCHON
INCLUDING TERREBONNE BAY.
* 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.
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