Alert archive / Louisiana / Small Craft Advisories in 2021

Small Craft Advisory 45, NWS New Orleans, LA

November 21, 2021

NWS New Orleans, LA issued this small craft advisory at Nov 21, 2021, 3:57 PM CST. It took effect at Nov 22, 2021, 12:00 PM CST. It was in force for 27 hr.

The area

The counties it named.

The facts

Issued
Nov 21, 2021, 3:57 PM CST (21:57 UTC)
In effect from
Nov 22, 2021, 12:00 PM CST
Expired
Nov 23, 2021, 3:12 PM CST
In force
27 hr
Issued by
NWS New Orleans, LA

The text

As transmitted.

234 
WHUS74 KLIX 212157
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
357 PM CST Sun Nov 21 2021

GMZ536-538-550-552-555-557-220600-
/O.NEW.KLIX.SC.Y.0045.211122T1800Z-211123T0900Z/
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-
357 PM CST Sun Nov 21 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON MONDAY TO 3 AM CST
TUESDAY...

* WHAT...North winds around 20 kt with gusts up to 25 kt 
  expected.

* WHERE...Portions of Gulf of Mexico. 

* WHEN...From noon Monday to 3 AM CST Tuesday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ570-572-575-577-220600-
/O.NEW.KLIX.SC.Y.0045.211122T1800Z-211123T1500Z/
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-
357 PM CST Sun Nov 21 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON MONDAY TO 9 AM CST
TUESDAY...

* WHAT...North winds 20 to 25 kt with gusts up to 35 kt and seas 
  5 to 7 ft expected.

* WHERE...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 
  and Coastal waters from Pascagoula Mississippi to Stake Island 
  Louisiana out 20 to 60 NM.

* WHEN...From noon Monday to 9 AM CST Tuesday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ532-534-220600-
/O.NEW.KLIX.SC.Y.0045.211122T1800Z-211123T0600Z/
Mississippi Sound-Lake Borgne-
357 PM CST Sun Nov 21 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON MONDAY TO MIDNIGHT
CST MONDAY NIGHT...

* WHAT...North winds 20 to 25 kt with gusts up to 30 kt expected.

* WHERE...Mississippi Sound and Lake Borgne.

* WHEN...From noon Monday to midnight CST Monday night.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
9 follow-up statements
241 
WHUS74 KLIX 220315
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
915 PM CST Sun Nov 21 2021

GMZ536-538-221115-
/O.NEW.KLIX.MF.Y.0023.211122T0315Z-211122T1200Z/
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T0900Z/
Chandeleur Sound-Breton Sound-
915 PM CST Sun Nov 21 2021

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 AM CST MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON MONDAY TO
3 AM CST TUESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to 1 NM or less. For the Small Craft Advisory, north
  winds around 20 kt with gusts up to 30 kt expected.

* WHERE...Chandeleur Sound and Breton Sound.

* WHEN...For the Dense Fog Advisory, until 6 AM CST Monday. For 
  the Small Craft Advisory, from noon Monday to 3 AM CST Tuesday.

* IMPACTS...Conditions will be hazardous to small craft. Low 
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

GMZ532-534-221115-
/O.NEW.KLIX.MF.Y.0023.211122T0315Z-211122T1200Z/
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T0600Z/
Mississippi Sound-Lake Borgne-
915 PM CST Sun Nov 21 2021

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 AM CST MONDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON MONDAY TO
MIDNIGHT CST MONDAY NIGHT...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to 1 NM or less. For the Small Craft Advisory, north
  winds near 20 kt with gusts up to 30 kt expected.

* WHERE...Mississippi Sound and Lake Borgne.

* WHEN...For the Dense Fog Advisory, until 6 AM CST Monday. For 
  the Small Craft Advisory, from noon Monday to midnight CST 
  Monday night.

* IMPACTS...Conditions will be hazardous to small craft. Low 
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

GMZ550-552-555-557-221115-
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T0900Z/
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-
915 PM CST Sun Nov 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON MONDAY TO
3 AM CST TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 30
  kt expected.

* WHERE...Portions of Gulf of Mexico.

* WHEN...From noon Monday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ570-572-575-577-221115-
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T1500Z/
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-
915 PM CST Sun Nov 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON MONDAY TO
9 AM CST TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 35
  kt and seas 5 to 7 ft expected.

* WHERE...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 
  and Coastal waters from Pascagoula Mississippi to Stake Island 
  Louisiana out 20 to 60 NM.

* WHEN...From noon Monday to 9 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
075 
WHUS74 KLIX 221000
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
400 AM CST Mon Nov 22 2021

GMZ536-538-221800-
/O.CON.KLIX.MF.Y.0023.000000T0000Z-211122T1200Z/
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T0900Z/
Chandeleur Sound-Breton Sound-
400 AM CST Mon Nov 22 2021

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 3 AM
CST TUESDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce 
  visibility to 1 NM or less. For the Small Craft Advisory, 
  north winds around 20 kt with gusts up to 30 kt expected.

* WHERE...Chandeleur Sound and Breton Sound.

* WHEN...For the Dense Fog Advisory, until 6 AM CST Monday. For 
  the Small Craft Advisory, from noon Monday to 3 AM CST Tuesday.

* IMPACTS...Conditions will be hazardous to small craft. Low 
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

GMZ532-534-221800-
/O.CON.KLIX.MF.Y.0023.000000T0000Z-211122T1200Z/
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T0600Z/
Mississippi Sound-Lake Borgne-
400 AM CST Mon Nov 22 2021

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
MIDNIGHT CST TONIGHT...

* WHAT...For the Dense Fog Advisory, dense fog will reduce 
  visibility to 1 NM or less. For the Small Craft Advisory, 
  north winds near 20 kt with gusts up to 30 kt expected.

* WHERE...Mississippi Sound and Lake Borgne.

* WHEN...For the Dense Fog Advisory, until 6 AM CST Monday. For 
  the Small Craft Advisory, from noon Monday to midnight CST 
  Monday night.

* IMPACTS...Conditions will be hazardous to small craft. Low 
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

GMZ550-552-555-557-221800-
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T0900Z/
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-
400 AM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 3 AM
CST TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  30 kt expected.

* WHERE...Portions of Gulf of Mexico.

* WHEN...From noon Monday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ570-572-575-577-221800-
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T1500Z/
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-
400 AM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 AM
CST TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  35 kt and seas 5 to 7 ft expected.

* WHERE...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 
  and Coastal waters from Pascagoula Mississippi to Stake Island 
  Louisiana out 20 to 60 NM.

* WHEN...From noon Monday to 9 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
123 
WHUS74 KLIX 221509
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
909 AM CST Mon Nov 22 2021

GMZ536-538-550-552-555-557-222315-
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T0900Z/
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-
909 AM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  30 kt expected.

* WHERE...Portions of Gulf of Mexico.

* WHEN...From noon Monday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ570-572-575-577-222315-
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T1500Z/
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-
909 AM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  35 kt and seas 5 to 7 ft expected.

* WHERE...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 
  and Coastal waters from Pascagoula Mississippi to Stake Island 
  Louisiana out 20 to 60 NM.

* WHEN...From noon Monday to 9 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ532-534-222315-
/O.CON.KLIX.SC.Y.0045.211122T1800Z-211123T0600Z/
Mississippi Sound-Lake Borgne-
909 AM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...For the Small Craft Advisory, north winds near 20 kt 
  with gusts up to 30 kt expected.

* WHERE...Mississippi Sound and Lake Borgne.

* WHEN...From noon Monday to midnight CST Monday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
196 
WHUS74 KLIX 221959
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
159 PM CST Mon Nov 22 2021

GMZ536-538-550-552-555-557-230400-
/O.CON.KLIX.SC.Y.0045.000000T0000Z-211123T0900Z/
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-
159 PM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  30 kt expected.

* WHERE...Portions of Gulf of Mexico.

* WHEN...From noon Monday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ570-572-575-577-230400-
/O.CON.KLIX.SC.Y.0045.000000T0000Z-211123T1500Z/
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-
159 PM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  35 kt and seas 5 to 7 ft expected.

* WHERE...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 
  and Coastal waters from Pascagoula Mississippi to Stake Island 
  Louisiana out 20 to 60 NM.

* WHEN...From noon Monday to 9 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ532-534-230400-
/O.CON.KLIX.SC.Y.0045.000000T0000Z-211123T0600Z/
Mississippi Sound-Lake Borgne-
159 PM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...For the Small Craft Advisory, north winds near 20 kt 
  with gusts up to 30 kt expected.

* WHERE...Mississippi Sound and Lake Borgne.

* WHEN...From noon Monday to midnight CST Monday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
836 
WHUS74 KLIX 222006
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
206 PM CST Mon Nov 22 2021

GMZ536-538-550-552-555-557-230415-
/O.CON.KLIX.SC.Y.0045.000000T0000Z-211123T0900Z/
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-
206 PM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  30 kt expected.

* WHERE...Portions of Gulf of Mexico.

* WHEN...From noon Monday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ570-572-575-577-230415-
/O.CON.KLIX.SC.Y.0045.000000T0000Z-211123T1500Z/
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-
206 PM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  35 kt and seas 5 to 7 ft expected.

* WHERE...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 
  and Coastal waters from Pascagoula Mississippi to Stake Island 
  Louisiana out 20 to 60 NM.

* WHEN...From noon Monday to 9 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ532-534-230415-
/O.CON.KLIX.SC.Y.0045.000000T0000Z-211123T0600Z/
Mississippi Sound-Lake Borgne-
206 PM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...For the Small Craft Advisory, north winds near 20 kt 
  with gusts up to 30 kt expected.

* WHERE...Mississippi Sound and Lake Borgne.

* WHEN...From noon Monday to midnight CST Monday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
047 
WHUS74 KLIX 230333
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
933 PM CST Mon Nov 22 2021

GMZ536-538-550-552-555-557-230900-
/O.CON.KLIX.SC.Y.0045.000000T0000Z-211123T0900Z/
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-
933 PM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  30 kt expected.

* WHERE...Portions of Gulf of Mexico.

* WHEN...From noon Monday to 3 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ570-572-575-577-231145-
/O.CON.KLIX.SC.Y.0045.000000T0000Z-211123T1500Z/
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-
933 PM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
TUESDAY...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  35 kt and seas 5 to 7 ft expected.

* WHERE...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 
  and Coastal waters from Pascagoula Mississippi to Stake Island 
  Louisiana out 20 to 60 NM.

* WHEN...From noon Monday to 9 AM CST Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ532-534-230600-
/O.CON.KLIX.SC.Y.0045.000000T0000Z-211123T0600Z/
Mississippi Sound-Lake Borgne-
933 PM CST Mon Nov 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* WHAT...For the Small Craft Advisory, north winds near 20 kt 
  with gusts up to 30 kt expected.

* WHERE...Mississippi Sound and Lake Borgne.

* WHEN...From noon Monday to midnight CST Monday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
490 
WHUS74 KLIX 230850
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
250 AM CST Tue Nov 23 2021

GMZ532-534-231500-
/O.NEW.KLIX.SC.Y.0046.211123T0850Z-211123T1500Z/
Mississippi Sound-Lake Borgne-
250 AM CST Tue Nov 23 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 30
  kt and waves 3 to 5 ft expected.

* WHERE...Mississippi Sound and Lake Borgne.

* WHEN...Until 9 AM CST this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ536-538-550-552-555-557-231500-
/O.EXT.KLIX.SC.Y.0045.000000T0000Z-211123T1500Z/
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-
250 AM CST Tue Nov 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM CST THIS
MORNING...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 30
  kt expected with seas 5 to 7 ft. 

* WHERE...Portions of Gulf of Mexico.

* WHEN...Until 9 AM CST this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ570-572-575-577-231700-
/O.EXT.KLIX.SC.Y.0045.000000T0000Z-211123T2200Z/
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-
250 AM CST Tue Nov 23 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 30 
  kt and seas 5 to 7 ft expected.

* WHERE...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 
  and Coastal waters from Pascagoula Mississippi to Stake Island 
  Louisiana out 20 to 60 NM.

* WHEN...Until 4 PM CST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
680 
WHUS74 KLIX 231521
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
921 AM CST Tue Nov 23 2021

GMZ536-538-550-552-555-557-231630-
/O.EXP.KLIX.SC.Y.0045.000000T0000Z-211123T1500Z/
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-
921 AM CST Tue Nov 23 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds in the near shore waters and the sounds have weakened below
20 knots. Small craft should continue to exercise caution in 
these waters.

$$

GMZ532-534-231630-
/O.EXP.KLIX.SC.Y.0046.000000T0000Z-211123T1500Z/
Mississippi Sound-Lake Borgne-
921 AM CST Tue Nov 23 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds in the tidal lakes and the sounds have weakened below 20 
knots. Small craft should continue to exercise caution in these 
waters..

$$

GMZ570-572-575-577-232200-
/O.CON.KLIX.SC.Y.0045.000000T0000Z-211123T2200Z/
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-
921 AM CST Tue Nov 23 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM CST THIS
AFTERNOON...

* WHAT...North to northeast winds 20 to 25 kt with gusts up to 
  30 kt and seas 5 to 7 ft expected.

* WHERE...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 
  and Coastal waters from Pascagoula Mississippi to Stake Island 
  Louisiana out 20 to 60 NM.

* WHEN...Until 4 PM CST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
028 
WHUS74 KLIX 232112
MWWLIX

URGENT - MARINE WEATHER MESSAGE
National Weather Service New Orleans LA
312 PM CST Tue Nov 23 2021

GMZ570-572-575-577-232215-
/O.CAN.KLIX.SC.Y.0045.000000T0000Z-211123T2200Z/
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-
312 PM CST Tue Nov 23 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds have dropped below criteria, small craft are advised to
continue to exercise caution due to winds between 15 and 20 
knots.

$$

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New Orleans, LA wrote its last area forecast discussion before this small craft advisory went out at Nov 21, 3:50 AM CST, 12 hours 7 minutes earlier.

Area forecast discussion, Nov 21, 3:50 AM CST, 12 hours 7 minutes before
Area Forecast Discussion
National Weather Service New Orleans LA
350 AM CST Sun Nov 21 2021

.SYNOPSIS...

High pressure centered off the Atlantic Coast had a southwestward
extension across Louisiana into east Texas early this morning.
Aloft, there was a shortwave moving across the Middle Mississippi
River Valley, with another diving southward through central
Canada, and a third moving through southern California. Primarily
zonal flow aloft across much of the southern quarter of the
country.

At 3 AM CST, skies were partly to mostly cloudy across the area.
There were patches of dense fog, which appear to be most common
near rivers and bayous. Temperatures generally ranged from the mid
50s to lower 60s.

&&

.SHORT TERM (through Tuesday night)...

Not anticipating any extension of this morning's Coastal Flood
Advisory, as current indications are that water levels for this
morning's high tide cycle are topping out just below levels that
start to trigger issues. Water levels for the next high tide cycle
tonight look to be slightly lower.

Progressive northern stream pattern is expected to continue
through Tuesday night. Patches of fog this morning should burn off
fairly quickly. At this time, not anticipating an advisory
issuance, but will be monitoring toward sunrise. Cold front is
expected to move across the area overnight, mainly after midnight.
A band of showers will accompany the front, but can't totally
rule out a few rumbles of thunder. As this front isn't going to
have a real strong push, there may be a period of fog with the
front before the drier air wedges in later on Monday. High
pressure will then dry us out for Monday afternoon through Tuesday
night.

Looking at another warm day today with temperatures well into the
70s, about 5-8 degrees above normal. Lows tonight will remain
above normal as the cooler air will be slow to arrive behind the
front. Monday highs are predicated on seeing some sunshine behind
the front during the afternoon. Tuesday morning will be chilly,
especially north of Lake Pontchartrain, where lows will be in the
30s, but it looks like there is only about a 5-10 percent chance
of temperatures falling below freezing. Tuesday highs will be on
the cool side, in the lower to middle 60s. Slight moderation in
temperatures Tuesday night as compared to Monday night, as high
pressure lingers over the area. Overall, spread in temperature
guidance through Tuesday night is fairly small, so major
adjustments to blended guidance weren't necessary. 35

&&

.LONG TERM (Wednesday and beyond)...

Early week cold airmass will will be short lived as very
progressive pattern slides the next upper ridge axis past the CWA
by Wednesday morning. Temperatures on Wednesday will jump by
several degrees with increasing cloudiness as well with the start
of low level moisture return. As this ridge continues east, a
splitting trough will be racing east across the Rockies. The
southern portion of this trough will hang up south of Arizona. The
remainder of the trough will keep on trucking east through the
midsection of the country. Local rain chances should begin
increasing early Thursday as the cold front associated with this
trough begins approaching the area. Expecting isolated coastal
showers to start with a merge of them and prefrontal showers as
Thursday progresses. Latest run of the GFS and ECMWF show that
once this boundary pushes through, that's it for the rain. This
solution is a big change from model runs just 24 hours ago, which
indicated a shallower trough and secondary/tertiary shortwaves
coming across the Gulf Coast the next few days and leading to a
few days of raininess. NBM output seems to account for some of
these other/older solutions and thus will be using its POPs for
the long term portion of the forecast.

MEFFER

&&

.AVIATION (valid through 12z Monday)...

Conditions have been rather variable over the last several hours
with quite a few terminals bouncing back and forth from VFR to
LIFR. General trend should be toward IFR or lower conditions as
sunrise approaches, but confidence is somewhat limited.
Improvement to VFR should come by mid to late morning. Conditions
are again expected to deteriorate by late evening as a cold front
approaches from the northwest. Likely to see MVFR to IFR
conditions develop near the front with occasional rain showers.
There's a minor threat of TSRA, but at this point, the threat
isn't high enough to carry as a predominant condition. There are,
however, some signals for a period of fog (3-6 hours?) between
the wind shift and the cooler, drier air arriving. This front
doesn't have as strong a push as the last few, and winds may not
be as much of an issue at KNEW and KMSY Monday morning. 35

&&

.MARINE...

Main concerns for marine interests over the next few days will be
the potential for Small Craft Advisories behind the cold front
Monday into Tuesday, and again with the next storm system at the
end of the week.

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  75  54  65  36 /  10  70  10   0
BTR  76  57  67  38 /   0  50  10   0
ASD  77  58  70  38 /   0  30  20   0
MSY  77  61  69  47 /   0  20  10   0
GPT  75  58  70  40 /   0  40  20   0
PQL  75  58  69  38 /   0  40  20   0

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...Coastal Flood Advisory until 6 AM CST early this morning for
     LAZ076.

GM...None.
MS...Coastal Flood Advisory until 6 AM CST early this morning for
     MSZ080>082.

GM...None.
&&

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.