Alert archive / Louisiana / Small Craft Advisories in 2021

Small Craft Advisory 39, NWS New Orleans, LA

September 21, 2021

NWS New Orleans, LA issued this small craft advisory at Sep 21, 2021, 8:46 PM CDT. It took effect at Sep 22, 2021, 3:00 AM CDT. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued
Sep 21, 2021, 8:46 PM CDT (01:46 UTC)
In effect from
Sep 22, 2021, 3:00 AM CDT
Expired
Sep 23, 2021, 12:00 PM CDT
In force
33 hr
Issued by
NWS New Orleans, LA

The text

As transmitted.

546 
WHUS74 KLIX 220146
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
846 PM CDT Tue Sep 21 2021

GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-221000-
/O.NEW.KLIX.SC.Y.0039.210922T0800Z-210923T0000Z/
Lake Pontchartrain and Lake Maurepas-Mississippi Sound-
Lake Borgne-Chandeleur Sound-Breton Sound-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River
LA out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River
to Port Fourchon Louisiana 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-
846 PM CDT Tue Sep 21 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM TO 7 PM CDT
WEDNESDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 
  5 to 7 ft expected.

* WHERE...Portions of Gulf of Mexico. 

* WHEN...From 3 AM to 7 PM CDT Wednesday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
6 follow-up statements
330 
WHUS74 KLIX 220910
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
410 AM CDT Wed Sep 22 2021

GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-221800-
/O.EXT.KLIX.SC.Y.0039.000000T0000Z-210923T1200Z/
Lake Pontchartrain and Lake Maurepas-Mississippi Sound-
Lake Borgne-Chandeleur Sound-Breton Sound-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River
LA out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River
to Port Fourchon Louisiana 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-
410 AM CDT Wed Sep 22 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM CDT THURSDAY...

* WHAT...North winds 20 kt with gusts up to 30 kt and seas 5 to 8 
  ft expected.

* WHERE...Portions of Gulf of Mexico, as well as the tidal lakes
  and sounds.

* WHEN...Until 7 AM CDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
948 
WHUS74 KLIX 221508
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
1008 AM CDT Wed Sep 22 2021

GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-222315-
/O.CON.KLIX.SC.Y.0039.000000T0000Z-210923T1200Z/
Lake Pontchartrain and Lake Maurepas-Mississippi Sound-
Lake Borgne-Chandeleur Sound-Breton Sound-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River
LA out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River
to Port Fourchon Louisiana 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-
1008 AM CDT Wed Sep 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...North winds 20 kt with gusts up to 30 kt and seas 5 to 
  8 ft expected.

* WHERE...Portions of Gulf of Mexico, as well as the tidal lakes 
  and sounds.

* WHEN...Until 7 AM CDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
491 
WHUS74 KLIX 222031
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
331 PM CDT Wed Sep 22 2021

GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-230445-
/O.CON.KLIX.SC.Y.0039.000000T0000Z-210923T1200Z/
Lake Pontchartrain and Lake Maurepas-Mississippi Sound-
Lake Borgne-Chandeleur Sound-Breton Sound-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River
LA out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River
to Port Fourchon Louisiana 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-
331 PM CDT Wed Sep 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...

* WHAT...North winds 20 kt with gusts up to 30 kt and seas 5 to 
  8 ft expected.

* WHERE...Portions of Gulf of Mexico, as well as the tidal lakes 
  and sounds.

* WHEN...Until 7 AM CDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
084 
WHUS74 KLIX 230219
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
919 PM CDT Wed Sep 22 2021

GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-231030-
/O.EXT.KLIX.SC.Y.0039.000000T0000Z-210923T1500Z/
Lake Pontchartrain and Lake Maurepas-Mississippi Sound-
Lake Borgne-Chandeleur Sound-Breton Sound-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River
LA out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River
to Port Fourchon Louisiana 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-
919 PM CDT Wed Sep 22 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THURSDAY...

* WHAT...North winds 20 kt with gusts up to 30 kt and seas 5 to 
  8 ft expected.

* WHERE...Portions of Gulf of Mexico, as well as the tidal lakes 
  and sounds.

* WHEN...Until 10 AM CDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
421 
WHUS74 KLIX 230846
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
346 AM CDT Thu Sep 23 2021

GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-231500-
/O.CON.KLIX.SC.Y.0039.000000T0000Z-210923T1500Z/
Lake Pontchartrain and Lake Maurepas-Mississippi Sound-
Lake Borgne-Chandeleur Sound-Breton Sound-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River
LA out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River
to Port Fourchon Louisiana 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-
346 AM CDT Thu Sep 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...North winds 20 kt with gusts up to 30 kt and seas 5 to 
  8 ft expected.

* WHERE...Portions of Gulf of Mexico, as well as the tidal lakes 
  and sounds.

* WHEN...Until 10 AM CDT.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
509 
WHUS74 KLIX 231451
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
951 AM CDT Thu Sep 23 2021

GMZ530-532-231600-
/O.CAN.KLIX.SC.Y.0039.000000T0000Z-210923T1500Z/
Lake Pontchartrain and Lake Maurepas-Mississippi Sound-
951 AM CDT Thu Sep 23 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Northeasterly winds have diminished below advisory level. However,
gusty winds in excess of 15 to 20 knots will still be possible
throughout today and into this evening.

$$

GMZ534-536-538-550-552-555-557-570-572-575-577-231700-
/O.EXT.KLIX.SC.Y.0039.000000T0000Z-210923T1700Z/
Lake Borgne-Chandeleur Sound-Breton Sound-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River
LA out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River
to Port Fourchon Louisiana 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-
951 AM CDT Thu Sep 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON CDT TODAY...

* WHAT...North winds 20 kt with gusts up to 30 kt and seas 5 to 
  8 ft expected.

* WHERE...Portions of Gulf of Mexico, as well as the tidal lakes 
  and sounds.

* WHEN...Until noon CDT today.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 22, 9:03 AM CDTWind AdvisoryLIXOrleans, Saint Bernard10 hr
Sep 21, 8:52 PM CDTSpecial Weather StatementLIXPearl River53 min

Nearby

Small Craft Advisories in Louisiana, 2021Every small craft advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.