Alert archive / Louisiana / Small Craft Advisories in 2021

Small Craft Advisory 45, NWS Lake Charles, LA

December 18, 2021

NWS Lake Charles, LA issued this small craft advisory at Dec 18, 2021, 3:25 AM CST. It took effect at Dec 18, 2021, 6:00 PM CST. It was in force for 42 hr.

The area

The counties it named.

The facts

Issued
Dec 18, 2021, 3:25 AM CST (09:25 UTC)
In effect from
Dec 18, 2021, 6:00 PM CST
Expired
Dec 20, 2021, 12:00 PM CST
In force
42 hr
Issued by
NWS Lake Charles, LA

The text

As transmitted.

082 
WHUS74 KLCH 180925
MWWLCH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Lake Charles LA
325 AM CST Sat Dec 18 2021

GMZ450-452-455-181600-
/O.EXT.KLCH.MF.Y.0034.000000T0000Z-211218T1600Z/
/O.NEW.KLCH.SC.Y.0045.211219T0000Z-211220T0000Z/
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
325 AM CST Sat Dec 18 2021

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 AM CST THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST SUNDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce 
  visibility to 1/4 NM or less. For the Small Craft Advisory, 
  north winds 15 to 25 kt with gusts up to 30 kt expected.

* WHERE...Coastal waters from Cameron LA to High Island TX out 
  20 NM, Coastal waters from Intracoastal City to Cameron LA out 
  20 NM and Coastal waters from Lower Atchafalaya River to 
  Intracoastal City LA out 20 NM.

* WHEN...For the Dense Fog Advisory, until 10 AM CST this 
  morning. For the Small Craft Advisory, from 6 PM this evening 
  to 6 PM CST Sunday.

* 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.

&&

$$

GMZ470-472-475-181600-
/O.NEW.KLCH.SC.Y.0045.211219T0000Z-211220T0000Z/
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
325 AM CST Sat Dec 18 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
CST SUNDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 
  4 to 6 ft expected.

* WHERE...Waters from Cameron LA to High Island TX from 20 to 60 
  NM, Waters from Intracoastal City to Cameron LA from 20 to 60 
  NM and Waters from Lower Atchafalaya River to Intracoastal 
  City LA from 20 to 60 NM.

* WHEN...From 6 PM this evening to 6 PM CST Sunday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ430-432-435-181600-
/O.EXT.KLCH.MF.Y.0034.000000T0000Z-211218T1600Z/
Sabine Lake-Calcasieu Lake-Vermilion Bay-
325 AM CST Sat Dec 18 2021

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 AM CST THIS
MORNING...

* WHAT...Dense fog will reduce visibility to 1/4 to 1/2 NM.

* WHERE...Sabine Lake, Calcasieu Lake and Vermilion Bay.

* WHEN...Until 10 AM CST this morning.

* IMPACTS...Low visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

13
8 follow-up statements
298 
WHUS74 KLCH 181519
MWWLCH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Lake Charles LA
919 AM CST Sat Dec 18 2021

GMZ450-452-455-190000-
/O.CAN.KLCH.MF.Y.0034.000000T0000Z-211218T1600Z/
/O.CON.KLCH.SC.Y.0045.211219T0000Z-211220T0000Z/
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
919 AM CST Sat Dec 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST SUNDAY...
...DENSE FOG ADVISORY IS CANCELLED...

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

* WHERE...Coastal waters from Lower Atchafalaya River to 
  Intracoastal City LA out 20 NM, Coastal waters from 
  Intracoastal City to Cameron LA out 20 NM and Coastal waters 
  from Cameron LA to High Island TX out 20 NM.

* WHEN...From 6 PM this evening to 6 PM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ430-432-435-181630-
/O.CAN.KLCH.MF.Y.0034.000000T0000Z-211218T1600Z/
Sabine Lake-Calcasieu Lake-Vermilion Bay-
919 AM CST Sat Dec 18 2021

...DENSE FOG ADVISORY IS CANCELLED...

Visibilities have improved and the dense fog advisory is no longer
required.

$$

GMZ470-472-475-190000-
/O.CON.KLCH.SC.Y.0045.211219T0000Z-211220T0000Z/
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
919 AM CST Sat Dec 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST SUNDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 
  4 to 6 ft expected.

* WHERE...Waters from Lower Atchafalaya River to Intracoastal 
  City LA from 20 to 60 NM, Waters from Cameron LA to High 
  Island TX from 20 to 60 NM and Waters from Intracoastal City 
  to Cameron LA from 20 to 60 NM.

* WHEN...From 6 PM this evening to 6 PM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
735 
WHUS74 KLCH 182035
MWWLCH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Lake Charles LA
235 PM CST Sat Dec 18 2021

GMZ450-452-455-470-472-475-191200-
/O.CON.KLCH.SC.Y.0045.211219T0000Z-211220T0000Z/
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
235 PM CST Sat Dec 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM CST SUNDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 
  4 to 7 ft expected.

* WHERE...Portions of the Gulf of Mexico. 

* WHEN...From 6 PM this evening to 6 PM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
323 
WHUS74 KLCH 190350
MWWLCH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Lake Charles LA
950 PM CST Sat Dec 18 2021

GMZ450-452-455-470-472-475-191200-
/O.CON.KLCH.SC.Y.0045.000000T0000Z-211220T0000Z/
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
950 PM CST Sat Dec 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST SUNDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 4
  to 7 ft.

* WHERE...Portions of the Gulf of Mexico. 

* WHEN...Until 6 PM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
474 
WHUS74 KLCH 190927
MWWLCH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Lake Charles LA
327 AM CST Sun Dec 19 2021

GMZ450-452-455-470-472-475-191700-
/O.CON.KLCH.SC.Y.0045.000000T0000Z-211220T0000Z/
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
327 AM CST Sun Dec 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 
  4 to 6 ft.

* WHERE...Portions of the Gulf of Mexico. 

* WHEN...Until 6 PM CST this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

13
711 
WHUS74 KLCH 191458
MWWLCH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Lake Charles LA
858 AM CST Sun Dec 19 2021

GMZ450-452-455-470-472-475-200000-
/O.CON.KLCH.SC.Y.0045.000000T0000Z-211220T0000Z/
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
858 AM CST Sun Dec 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS
EVENING...

* WHAT...North winds 15 to 20 kt with gusts up to 30 kt.

* WHERE...Portions of the Gulf of Mexico. 

* WHEN...Until 6 PM CST this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
701 
WHUS74 KLCH 192102
MWWLCH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Lake Charles LA
302 PM CST Sun Dec 19 2021

GMZ450-452-455-192215-
/O.CAN.KLCH.SC.Y.0045.000000T0000Z-211220T0000Z/
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
302 PM CST Sun Dec 19 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Offshore winds have decreased some over the near shore waters
and therefore the small craft advisory has been cancelled. 
Small craft should still exercise caution as winds remain
elevated into Monday.

$$

GMZ470-472-475-201200-
/O.EXT.KLCH.SC.Y.0045.000000T0000Z-211220T1500Z/
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
302 PM CST Sun Dec 19 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM CST MONDAY...

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and 
  seas 4 to 6 ft.

* WHERE...Waters from Lower Atchafalaya River to Intracoastal 
  City LA from 20 to 60 NM, Waters from Cameron LA to High 
  Island TX from 20 to 60 NM and Waters from Intracoastal City 
  to Cameron LA from 20 to 60 NM.

* WHEN...Until 9 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
015 
WHUS74 KLCH 200407
MWWLCH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Lake Charles LA
1007 PM CST Sun Dec 19 2021

GMZ470-472-475-201200-
/O.CON.KLCH.SC.Y.0045.000000T0000Z-211220T1500Z/
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
1007 PM CST Sun Dec 19 2021

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

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and 
  seas 4 to 6 ft.

* WHERE...Waters from Lower Atchafalaya River to Intracoastal 
  City LA from 20 to 60 NM, Waters from Cameron LA to High 
  Island TX from 20 to 60 NM and Waters from Intracoastal City 
  to Cameron LA from 20 to 60 NM.

* WHEN...Until 9 AM CST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
859 
WHUS74 KLCH 200934
MWWLCH

URGENT - MARINE WEATHER MESSAGE
National Weather Service Lake Charles LA
334 AM CST Mon Dec 20 2021

GMZ470-472-475-201800-
/O.EXT.KLCH.SC.Y.0045.000000T0000Z-211220T1800Z/
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
334 AM CST Mon Dec 20 2021

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

* WHAT...Northeast winds 15 to 20 kt with gusts up to 30 kt and 
  seas 4 to 6 ft.

* WHERE...Waters from Lower Atchafalaya River to Intracoastal 
  City LA from 20 to 60 NM, Waters from Cameron LA to High 
  Island TX from 20 to 60 NM and Waters from Intracoastal City 
  to Cameron LA from 20 to 60 NM.

* WHEN...Until noon CST 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 Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 18, 12:52 PM CSTSevere Thunderstorm WarningLCHBeauregard, Calcasieu, Vernon38 min
Dec 18, 1:30 PM CSTSpecial Marine WarningLCH30 min
Dec 18, 1:30 PM CSTSevere Thunderstorm WarningLCHAllen, Beauregard, Calcasieu, Jefferson Davis, Vernon49 min
Dec 18, 1:32 PM CSTSevere Thunderstorm WarningLCHCalcasieu, Cameron58 min
Dec 18, 1:43 PM CSTSpecial Weather StatementLCHRapides32 min
Dec 18, 1:47 PM CSTSpecial Marine WarningLCH58 min
Dec 18, 2:15 PM CSTSpecial Weather StatementLCHAcadia, Allen, Evangeline, Jefferson Davis45 min
Dec 18, 2:20 PM CSTSevere Thunderstorm WarningLCHCalcasieu, Cameron, Jefferson Davis25 min
Dec 18, 2:45 PM CSTSpecial Weather StatementLCHCameron60 min
Dec 18, 2:50 PM CSTSpecial Marine WarningLCH85 min
Dec 18, 3:00 PM CSTSpecial Weather StatementLCHAcadia, Saint Landry30 min
Dec 18, 3:56 PM CSTSpecial Weather StatementLCHLafayette, Saint Martin34 min
Dec 18, 4:40 PM CSTSpecial Weather StatementLCHIberia, Lafayette, Saint Martin, St. Mary65 min
Dec 18, 11:26 AM CSTSpecial Weather StatementLCHTyler34 min
Dec 18, 11:52 AM CSTSpecial Weather StatementLCHHardin23 min
Dec 18, 12:11 PM CSTSpecial Weather StatementLCHJasper, Newton34 min
Dec 18, 12:13 PM CSTSpecial Weather StatementLCHHardin32 min
Dec 18, 12:28 PM CSTSevere Thunderstorm WarningLCHHardin, Jasper, Newton, Tyler45 min
Dec 18, 12:44 PM CSTSpecial Weather StatementLCHJefferson, Orange31 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.