Alert archive / Louisiana / Wind Advisories in 2021

Wind Advisory 1, NWS New Orleans, LA

March 17, 2021Pearl River County, Mississippi; 7 parishes in Louisiana

NWS New Orleans, LA issued this wind advisory at Mar 17, 2021, 3:33 AM CDT for Pearl River County, Mississippi; 7 parishes in Louisiana. It took effect at Mar 17, 2021, 10:00 AM CDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Mar 17, 2021, 3:33 AM CDT (08:33 UTC)
In effect from: Mar 17, 2021, 10:00 AM CDT
Expired: Mar 17, 2021, 10:00 PM CDT
In force: 12 hr
Issued by: NWS New Orleans, LA

Counties Assumption Parish, LA, East Baton Rouge Parish, LA, Iberville Parish, LA, Saint Bernard Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, West Baton Rouge Parish, LA, Pearl River County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 8.6 hours before the alert went out and 95 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1817 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 739 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 6.8

Open this sounding in Storm Lab

The text

As transmitted.

425 
WWUS74 KLIX 170833
NPWLIX

URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
333 AM CDT Wed Mar 17 2021

LAZ040-046>050-056>070-072-MSZ077-080>082-171645-
/O.NEW.KLIX.WI.Y.0001.210317T1500Z-210318T0300Z/
St. Tammany-Iberville-West Baton Rouge-East Baton Rouge-Ascension-
Livingston-Assumption-St. James-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-Southern Tangipahoa-
Pearl River-Hancock-Harrison-Jackson-
Including the cities of Slidell, Mandeville, Covington, Lacombe, 
Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis, 
Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville, 
Denham Springs, Watson, Walker, Pierre Part, Labadieville, 
Paincourtville, Convent, Lutcher, Gramercy, 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, 
Yscloskey, Hammond, Robert, Ponchatoula, Crossroads, McNeil, 
Poplarville, Picayune, Bay St. Louis, Waveland, Diamondhead, 
Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, 
and St. Martin
333 AM CDT Wed Mar 17 2021

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 10 PM CDT
THIS EVENING...

* WHAT...South winds 25 to 35 mph with higher gusts expected.

* WHERE...Portions of southeast and southern Mississippi and 
  southeast Louisiana.

* WHEN...From 10 AM this morning to 10 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

3 follow-up statements

734 
WWUS74 KLIX 171547
NPWLIX

URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
1047 AM CDT Wed Mar 17 2021

LAZ040-046>050-056>070-072-MSZ077-080>082-180000-
/O.CON.KLIX.WI.Y.0001.000000T0000Z-210318T0300Z/
St. Tammany-Iberville-West Baton Rouge-East Baton Rouge-Ascension-
Livingston-Assumption-St. James-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-Southern Tangipahoa-
Pearl River-Hancock-Harrison-Jackson-
Including the cities of Slidell, Mandeville, Covington, Lacombe, 
Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis, 
Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville, 
Denham Springs, Watson, Walker, Pierre Part, Labadieville, 
Paincourtville, Convent, Lutcher, Gramercy, 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, 
Yscloskey, Hammond, Robert, Ponchatoula, Crossroads, McNeil, 
Poplarville, Picayune, Bay St. Louis, Waveland, Diamondhead, 
Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, 
and St. Martin
1047 AM CDT Wed Mar 17 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING...

* WHAT...South winds 25 to 35 mph with higher gusts expected.

* WHERE...Portions of southeast and southern Mississippi and 
  southeast Louisiana.

* WHEN...From 10 AM this morning to 10 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

286 
WWUS74 KLIX 172143
NPWLIX

URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
443 PM CDT Wed Mar 17 2021


LAZ040-046>050-056>070-072-MSZ077-080>082-180300-
/O.CON.KLIX.WI.Y.0001.000000T0000Z-210318T0300Z/
St. Tammany-Iberville-West Baton Rouge-East Baton Rouge-Ascension-
Livingston-Assumption-St. James-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-Southern Tangipahoa-
Pearl River-Hancock-Harrison-Jackson-
Including the cities of Slidell, Mandeville, Covington, Lacombe, 
Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis, 
Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville, 
Denham Springs, Watson, Walker, Pierre Part, Labadieville, 
Paincourtville, Convent, Lutcher, Gramercy, 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, 
Yscloskey, Hammond, Robert, Ponchatoula, Crossroads, McNeil, 
Poplarville, Picayune, Bay St. Louis, Waveland, Diamondhead, 
Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, 
and St. Martin
443 PM CDT Wed Mar 17 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING...

* WHAT...South winds 25 to 35 mph with higher gusts expected.

* WHERE...Portions of southeast and southern Mississippi and 
  southeast Louisiana. 

* WHEN...From 10 AM this morning to 10 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

616 
WWUS74 KLIX 180249
NPWLIX

URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
949 PM CDT Wed Mar 17 2021

LAZ040-046>050-056>070-072-MSZ077-080>082-180400-
/O.EXP.KLIX.WI.Y.0001.000000T0000Z-210318T0300Z/
St. Tammany-Iberville-West Baton Rouge-East Baton Rouge-Ascension-
Livingston-Assumption-St. James-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-Southern Tangipahoa-
Pearl River-Hancock-Harrison-Jackson-
Including the cities of Slidell, Mandeville, Covington, Lacombe, 
Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis, 
Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville, 
Denham Springs, Watson, Walker, Pierre Part, Labadieville, 
Paincourtville, Convent, Lutcher, Gramercy, 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, 
Yscloskey, Hammond, Robert, Ponchatoula, Crossroads, McNeil, 
Poplarville, Picayune, Bay St. Louis, Waveland, Diamondhead, 
Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, 
and St. Martin
949 PM CDT Wed Mar 17 2021

...WIND ADVISORY WILL EXPIRE AT 10 PM CDT THIS EVENING...

Winds will continue to relax in the wake of a passing cold front
and the wind advisory will be allowed to expire at 10 PM.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 17, 3:30 PM CDT	Tornado Warning	LIX	Wilkinson	45 min
Mar 17, 4:08 PM CDT	Tornado Warning	LIX	Amite, Wilkinson	22 min
Mar 17, 4:50 PM CDT	Special Weather Statement	LIX	Amite, Pike	55 min
Mar 17, 5:29 PM CDT	Special Weather Statement	LIX	Pike, Walthall	46 min
Mar 17, 5:40 PM CDT	Severe Thunderstorm Warning	LIX	Pearl River, Walthall	31 min
Mar 17, 6:12 PM CDT	Special Weather Statement	LIX	Pearl River	33 min
Mar 17, 3:18 PM CDT	Special Weather Statement	LIX	Pointe Coupee, West Feliciana	42 min
Mar 17, 4:05 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Assumption, East Baton Rouge, Iberville, Livingston, Saint James and 1 more	40 min
Mar 17, 4:44 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston, Saint Helena, Tangipahoa	34 min
Mar 17, 5:06 PM CDT	Special Weather Statement	LIX	Ascension, Iberville	39 min
Mar 17, 5:11 PM CDT	Special Weather Statement	LIX	Ascension, Livingston, Tangipahoa	49 min
Mar 17, 5:59 PM CDT	Areal Flood Advisory	LIX	Ascension, Assumption, East Baton Rouge, Iberville, Livingston, Saint James and 2 more	3 hr
Mar 17, 6:05 PM CDT	Special Weather Statement	LIX	Livingston, Saint John the Baptist, Tangipahoa	55 min
Mar 17, 6:07 PM CDT	Special Marine Warning	LIX		53 min
Mar 17, 6:24 PM CDT	Areal Flood Advisory	LIX	Livingston, Saint John the Baptist, Saint Tammany, Tangipahoa	3 hr
Mar 17, 6:27 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Assumption, Iberville, Lafourche, Saint James, Terrebonne	63 min
Mar 17, 6:54 PM CDT	Special Weather Statement	LIX	Saint Tammany	66 min
Mar 17, 6:58 PM CDT	Special Marine Warning	LIX		62 min

Nearby

Wind Advisories in Louisiana, 2021 Wind Advisories in Mississippi, 2021 Every 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.