Alert archive / Louisiana / Tornado Warnings in 2021

Tornado Warning 3, NWS New Orleans, LA

March 17, 2021Pointe Coupee Parish, West Feliciana Parish, Louisiana; Wilkinson County, Mississippi

NWS New Orleans, LA issued this tornado warning at Mar 17, 2021, 3:30 PM CDT for Pointe Coupee Parish, West Feliciana Parish, Louisiana; Wilkinson County, Mississippi. It was in force for 45 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 17, 2021, 3:30 PM CDT (20:30 UTC)
Expired: Mar 17, 2021, 4:15 PM CDT
In force: 45 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Pointe Coupee Parish, LA, West Feliciana Parish, LA, Wilkinson County, MS

What was reported inside it

Time	Report	Where	Remark
Mar 17, 3:52 PM CDT	TSTM WND DMG	N Fort Adams, MS	PUBLIC REPORTED TREE DEBRIS ON ROAD 61 VIA SOCIAL MEDIA IN WILKINSON COUNTY. POSSIBLE TORNADO.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 17, 2:38 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.5 hours before the alert went out and 188 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: 458 J/kg
Mixed-layer CIN: -397 J/kg
Mixed-layer LCL: 1132 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 158 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

903 
WFUS54 KLIX 172030
TORLIX
LAC077-125-MSC157-172115-
/O.NEW.KLIX.TO.W.0003.210317T2030Z-210317T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New Orleans LA
330 PM CDT Wed Mar 17 2021

The National Weather Service in New Orleans has issued a

* Tornado Warning for...
  Northern West Feliciana Parish in southeastern Louisiana...
  Northwestern Pointe Coupee Parish in southeastern Louisiana...
  Western Wilkinson County in southern Mississippi...

* Until 415 PM CDT.
    
* At 329 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Lettsworth, or near Simmesport, moving northeast
  at 40 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Lettsworth around 335 PM CDT.
  Fort Adams around 355 PM CDT.
  Woodville around 415 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 3097 9181 3104 9172 3104 9165 3097 9166
      3104 9156 3107 9157 3114 9163 3124 9156
      3122 9151 3124 9148 3128 9149 3132 9146
      3132 9140 3101 9118 3080 9179 3082 9181
TIME...MOT...LOC 2029Z 232DEG 37KT 3091 9177 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

KLG

2 follow-up statements

071 
WWUS54 KLIX 172045
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
345 PM CDT Wed Mar 17 2021

LAC077-125-172055-
/O.CAN.KLIX.TO.W.0003.000000T0000Z-210317T2115Z/
West Feliciana LA-Pointe Coupee LA-
345 PM CDT Wed Mar 17 2021

...THE TORNADO WARNING FOR NORTHERN WEST FELICIANA AND NORTHWESTERN
POINTE COUPEE PARISHES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 900 PM CDT for southern
Mississippi.

LAT...LON 3132 9140 3108 9123 3100 9152 3100 9162
      3104 9156 3106 9156 3114 9163 3116 9160
      3124 9156 3122 9153 3122 9151 3123 9150
      3123 9149 3124 9148 3126 9148 3128 9149
      3132 9146
TIME...MOT...LOC 2045Z 237DEG 52KT 3105 9157 

$$

MSC157-172115-
/O.CON.KLIX.TO.W.0003.000000T0000Z-210317T2115Z/
Wilkinson MS-
345 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR WESTERN
WILKINSON COUNTY...
    
At 345 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Fort Adams, or 15 miles east of Simmesport, moving
northeast at 60 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Woodville around 400 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 3132 9140 3108 9123 3100 9152 3100 9162
      3104 9156 3106 9156 3114 9163 3116 9160
      3124 9156 3122 9153 3122 9151 3123 9150
      3123 9149 3124 9148 3126 9148 3128 9149
      3132 9146
TIME...MOT...LOC 2045Z 237DEG 52KT 3105 9157 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

KLG

291 
WWUS54 KLIX 172100
SVSLIX

Severe Weather Statement
National Weather Service New Orleans LA
400 PM CDT Wed Mar 17 2021

MSC157-172115-
/O.CON.KLIX.TO.W.0003.000000T0000Z-210317T2115Z/
Wilkinson MS-
400 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR WESTERN
WILKINSON COUNTY...
    
At 400 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southwest of Dolorosa, or 23 miles southeast of
Monterey, moving northeast at 55 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
western Wilkinson County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 3111 9125 3108 9152 3116 9160 3124 9156
      3122 9153 3122 9151 3123 9150 3123 9149
      3124 9148 3126 9148 3128 9149 3132 9146
      3132 9140
TIME...MOT...LOC 2100Z 222DEG 48KT 3122 9143 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

KLG

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 17, 3:33 AM CDT	Wind Advisory	LIX	Assumption, East Baton Rouge, Iberville, Saint Bernard, Saint James, Saint John the Baptist and 1 more	18 hr
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, 4:50 PM CDT	Special Weather Statement	LIX	East Feliciana, Saint Helena	55 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, 5:29 PM CDT	Special Weather Statement	LIX	Washington	46 min
Mar 17, 5:40 PM CDT	Severe Thunderstorm Warning	LIX	Washington	31 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
Mar 17, 4:08 PM CDT	Tornado Warning	LIX	Amite, Wilkinson	22 min
Mar 17, 6:12 PM CDT	Special Weather Statement	LIX	Pearl River	33 min

Nearby

Tornado Warnings in Louisiana, 2021 Tornado Warnings in Mississippi, 2021 Every tornado warning in 2021 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.