Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 70, NWS Shreveport, LA

April 9, 20216 parishes in Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 9, 2021, 6:23 PM CDT for 6 parishes in Louisiana. It was in force for 52 min. 2 reports 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: Apr 9, 2021, 6:23 PM CDT (23:23 UTC)
Expired: Apr 9, 2021, 7:15 PM CDT
In force: 52 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Bienville Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Natchitoches Parish, LA, Red River Parish, LA, Winn Parish, LA

The radar

The Shreveport radar (KSHV), 83 km from the middle of the area, began a volume at 23:27 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Apr 9, 6:30 PM CDT	HAIL 0.7	Ashland, LA	CORRECTS PREVIOUS HAIL REPORT FROM ASHLAND. PUBLIC REPORT DIME SIZE HAIL VIA SOCIAL MEDIA IN ASHLAND.
Apr 9, 6:45 PM CDT	HAIL 1.75	Saline, LA	KSLA VIEWER POST PHOTO OF GOLFBALL SIZE HAIL NEAR SALINE.

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
Apr 9, 5:32 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 11.4 hours before the alert went out and 76 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: 928 J/kg
Mixed-layer CIN: -310 J/kg
Mixed-layer LCL: 1043 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

769 
WUUS54 KSHV 092323
SVRSHV
LAC013-049-061-069-081-127-100015-
/O.NEW.KSHV.SV.W.0070.210409T2323Z-210410T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
623 PM CDT Fri Apr 9 2021

The National Weather Service in Shreveport has issued a

* Severe Thunderstorm Warning for...
  Northwestern Jackson Parish in north central Louisiana...
  Eastern Red River Parish in northwestern Louisiana...
  North central Natchitoches Parish in northwestern Louisiana...
  Eastern Bienville Parish in northwestern Louisiana...
  Southwestern Lincoln Parish in north central Louisiana...
  Northwestern Winn Parish in north central Louisiana...

* Until 715 PM CDT.

* At 623 PM CDT, a severe thunderstorm was located 16 miles northeast
  of Coushatta, or 23 miles west of Jonesboro, moving northeast at 35
  mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Grambling, Jonesboro, Coushatta, Simsboro, Martin, Hodge, North
  Hodge, Hall Summit, East Hodge, Saline, Lucky, Ashland, Castor,
  Bienville, Edgefield, Quitman, Brice, Womack, Friendship and
  Liberty Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3192 9320 3210 9338 3259 9280 3232 9255
TIME...MOT...LOC 2323Z 228DEG 29KT 3214 9310 

HAIL...1.00IN
WIND...60MPH
 
$$

19

2 follow-up statements

034 
WWUS54 KSHV 092348
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
648 PM CDT Fri Apr 9 2021

LAC081-092357-
/O.CAN.KSHV.SV.W.0070.000000T0000Z-210410T0015Z/
Red River LA-
648 PM CDT Fri Apr 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN RED RIVER PARISH IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
north central and northwestern Louisiana.

LAT...LON 3202 9304 3226 9319 3259 9280 3232 9255
TIME...MOT...LOC 2347Z 228DEG 29KT 3227 9292 

$$

LAC013-049-061-069-127-100015-
/O.CON.KSHV.SV.W.0070.000000T0000Z-210410T0015Z/
Jackson LA-Natchitoches LA-Bienville LA-Lincoln LA-Winn LA-
648 PM CDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHWESTERN JACKSON...NORTH CENTRAL NATCHITOCHES...EASTERN
BIENVILLE...SOUTHWESTERN LINCOLN AND NORTHWESTERN WINN PARISHES...

At 647 PM CDT, a severe thunderstorm was located 12 miles west of
Jonesboro, moving northeast at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Grambling, Jonesboro, Simsboro, Hodge, North Hodge, East Hodge,
Saline, Lucky, Ashland, Castor, Bienville, Quitman, Brice,
Friendship, Liberty Hill and Chestnut.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3202 9304 3226 9319 3259 9280 3232 9255
TIME...MOT...LOC 2347Z 228DEG 29KT 3227 9292 

HAIL...1.00IN
WIND...60MPH
 
$$

19

736 
WWUS54 KSHV 100006
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
706 PM CDT Fri Apr 9 2021

LAC069-127-100015-
/O.CAN.KSHV.SV.W.0070.000000T0000Z-210410T0015Z/
Natchitoches LA-Winn LA-
706 PM CDT Fri Apr 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL NATCHITOCHES AND
NORTHWESTERN WINN PARISHES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
north central and northwestern Louisiana.

LAT...LON 3215 9283 3215 9297 3237 9306 3259 9280
      3232 9255
TIME...MOT...LOC 0005Z 228DEG 29KT 3237 9279 

$$

LAC013-049-061-100015-
/O.CON.KSHV.SV.W.0070.000000T0000Z-210410T0015Z/
Jackson LA-Bienville LA-Lincoln LA-
706 PM CDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTHWESTERN JACKSON...EASTERN BIENVILLE AND SOUTHWESTERN LINCOLN
PARISHES...

At 705 PM CDT, a severe thunderstorm was located 10 miles northwest
of Jonesboro, moving northeast at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Grambling, Jonesboro, Simsboro, Hodge, North Hodge, East Hodge,
Saline, Lucky, Bienville, Quitman, Brice, Friendship and Liberty
Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3215 9283 3215 9297 3237 9306 3259 9280
      3232 9255
TIME...MOT...LOC 0005Z 228DEG 29KT 3237 9279 

HAIL...1.00IN
WIND...60MPH
 
$$

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 2:28 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo, Claiborne, Webster	32 min
Apr 9, 2:51 PM CDT	Special Weather Statement	SHV	Caddo	39 min
Apr 9, 4:28 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, Lincoln, Webster	47 min
Apr 9, 5:01 PM CDT	Severe Thunderstorm Warning	SHV	Union	44 min
Apr 9, 5:15 PM CDT	Severe Thunderstorm Warning	SHV	Claiborne, Lincoln, Ouachita, Union	45 min
Apr 9, 5:38 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Claiborne, Webster	67 min
Apr 9, 5:40 PM CDT	Special Weather Statement	SHV	De Soto	50 min
Apr 9, 5:44 PM CDT	Severe Thunderstorm Warning	SHV	Ouachita, Union	46 min
Apr 9, 5:49 PM CDT	Severe Thunderstorm Warning	SHV	De Soto	56 min
Apr 9, 5:54 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, Jackson, Ouachita, Winn	66 min
Apr 9, 5:58 PM CDT	Severe Thunderstorm Warning	SHV	Union	21 min
Apr 9, 6:27 PM CDT	Special Weather Statement	SHV	Bienville	48 min
Apr 9, 6:37 PM CDT	Special Weather Statement	SHV	Ouachita	38 min
Apr 9, 6:40 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, Lincoln, Union	65 min
Apr 9, 6:49 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Caddo, De Soto, Red River	56 min
Apr 9, 6:55 PM CDT	Severe Thunderstorm Warning	SHV	Ouachita, Union	65 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2021 Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.