Alert archive / Louisiana / Wind Advisories in 2021

Wind Advisory 2, NWS New Orleans, LA

March 23, 2021Saint Bernard Parish, Saint John the Baptist Parish, Louisiana

NWS New Orleans, LA issued this wind advisory at Mar 23, 2021, 3:57 AM CDT for Saint Bernard Parish, Saint John the Baptist Parish, Louisiana. It took effect at Mar 23, 2021, 8:00 AM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Mar 23, 2021, 3:57 AM CDT (08:57 UTC)
In effect from
Mar 23, 2021, 8:00 AM CDT
Expired
Mar 23, 2021, 3:00 PM CDT
In force
7 hr
Issued by
NWS New Orleans, LA

Counties Saint Bernard Parish, LA, Saint John the Baptist Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.0 hours before the alert went out and 51 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 00:00Z on 2021-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2021-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1307 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

349 
WWUS74 KLIX 230857
NPWLIX

URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
357 AM CDT Tue Mar 23 2021

LAZ058>070-231700-
/O.NEW.KLIX.WI.Y.0002.210323T1300Z-210323T2000Z/
St. John The Baptist-Upper Lafourche-St. Charles-Upper Jefferson-
Orleans-Upper Plaquemines-Upper St. Bernard-Upper Terrebonne-
Lower Terrebonne-Lower Lafourche-Lower Jefferson-
Lower Plaquemines-Lower St. Bernard-
Including the cities of Laplace, Reserve, Thibodaux, Raceland, 
Larose, Destrehan, Norco, Metairie, Kenner, East New Orleans, 
New Orleans, Belle Chasse, Chalmette, Violet, Houma, Bayou Cane, 
Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, 
Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, 
Boothville, Venice, Empire, Myrtle Grove, and Yscloskey
357 AM CDT Tue Mar 23 2021

...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 3 PM CDT
THIS AFTERNOON...

* WHAT...Southeast winds 15 to 25 mph expected.

* WHERE...Portions of southeast Louisiana.

* WHEN...From 8 AM this morning to 3 PM CDT this afternoon.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Driving on elevated roadways could be difficult.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
1 follow-up statement
016 
WWUS74 KLIX 231525
NPWLIX

URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
1025 AM CDT Tue Mar 23 2021

LAZ058>070-232000-
/O.CON.KLIX.WI.Y.0002.000000T0000Z-210323T2000Z/
St. John The Baptist-Upper Lafourche-St. Charles-Upper Jefferson-
Orleans-Upper Plaquemines-Upper St. Bernard-Upper Terrebonne-
Lower Terrebonne-Lower Lafourche-Lower Jefferson-
Lower Plaquemines-Lower St. Bernard-
Including the cities of Laplace, Reserve, Thibodaux, Raceland, 
Larose, Destrehan, Norco, Metairie, Kenner, East New Orleans, 
New Orleans, Belle Chasse, Chalmette, Violet, Houma, Bayou Cane, 
Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, 
Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, 
Boothville, Venice, Empire, Myrtle Grove, and Yscloskey
1025 AM CDT Tue Mar 23 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM CDT THIS
AFTERNOON...

* WHAT...Southeast winds 15 to 25 mph expected.

* WHERE...Portions of southeast Louisiana.

* WHEN...From 8 AM this morning to 3 PM CDT this afternoon.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Driving on elevated roadways could be difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 23, 6:24 AM CDTSpecial Weather StatementLIXPointe Coupee, West Feliciana66 min
Mar 23, 6:40 AM CDTSevere Thunderstorm WarningLIXPointe Coupee, West Feliciana35 min
Mar 23, 7:09 AM CDTSevere Thunderstorm WarningLIXEast Feliciana, Pointe Coupee, West Feliciana51 min
Mar 23, 7:47 AM CDTSevere Thunderstorm WarningLIXEast Feliciana, West Feliciana43 min
Mar 23, 8:00 AM CDTSpecial Weather StatementLIXPointe Coupee30 min
Mar 23, 8:33 AM CDTSpecial Weather StatementLIXWest Feliciana27 min
Mar 23, 9:00 AM CDTSpecial Weather StatementLIXEast Feliciana30 min
Mar 23, 9:11 AM CDTSpecial Weather StatementLIXPointe Coupee34 min
Mar 23, 9:29 AM CDTSpecial Weather StatementLIXSaint Helena31 min
Mar 23, 9:42 AM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, Iberville, Livingston, Pointe Coupee, West Baton Rouge34 min
Mar 23, 10:41 AM CDTRiver Flood WarningLIXSaint Tammany65 days
Mar 23, 10:41 AM CDTRiver Flood WarningLIXSaint Tammany7 days
Mar 23, 10:51 AM CDTRiver Flood WarningLIXSaint Helena62 hr
Mar 23, 10:54 AM CDTRiver Flood WarningLIXTangipahoa6 days
Mar 23, 10:57 AM CDTRiver Flood WarningLIXSaint Tammany4 days
Mar 23, 11:01 AM CDTRiver Flood WarningLIXSaint Tammany4 days
Mar 23, 11:22 AM CDTSpecial Weather StatementLIXAssumption23 min
Mar 23, 11:25 AM CDTSpecial Weather StatementLIXSaint Tammany35 min
Mar 23, 11:39 AM CDTSevere Thunderstorm WarningLIXSaint Tammany, Washington51 min
Mar 23, 11:46 AM CDTRiver Flood WarningLIXEast Baton Rouge, West Baton Rouge35 days
Mar 23, 11:49 AM CDTSevere Thunderstorm WarningLIXSaint Tammany41 min
Mar 23, 12:06 PM CDTSpecial Marine WarningLIX54 min
Mar 23, 12:47 PM CDTAreal Flood AdvisoryLIXJefferson, Orleans, Saint Bernard3 hr
Mar 23, 12:55 PM CDTAreal Flood AdvisoryLIXSaint Tammany3 hr
Mar 23, 1:08 PM CDTFlash Flood WarningLIXJefferson, Orleans2 hr
Mar 23, 1:18 PM CDTFlash Flood WarningLIXSaint Bernard2 hr
Mar 23, 1:20 PM CDTSpecial Marine WarningLIX85 min
Mar 23, 1:48 PM CDTAreal Flood AdvisoryLIXJefferson, Saint Charles3 hr
Mar 23, 2:38 PM CDTSpecial Marine WarningLIX97 min
Mar 23, 3:25 PM CDTAreal Flood AdvisoryLIXLafourche3 hr
Mar 23, 3:27 PM CDTAreal Flood AdvisoryLIXLafourche, Terrebonne3 hr
Mar 23, 3:38 PM CDTAreal Flood AdvisoryLIXLafourche, Terrebonne3 hr
Mar 23, 4:05 PM CDTFlash Flood WarningLIXLafourche, Terrebonne9 hr
Mar 23, 4:09 PM CDTAreal Flood AdvisoryLIXJefferson, Orleans, Saint Bernard3 hr

Nearby

Wind Advisories in Louisiana, 2021Every wind 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; the sounding from the Mesonet's radiosonde archive.