Alert archive / Louisiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 175, NWS Shreveport, LA

June 13, 20215 parishes in Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jun 13, 2021, 10:01 PM CDT for 5 parishes in Louisiana. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 13, 2021, 10:01 PM CDT (03:01 UTC)
Expired: Jun 13, 2021, 11:00 PM CDT
In force: 59 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, De Soto Parish, LA, Red River Parish, LA

The radar

The Shreveport radar (KSHV), 35 km from the middle of the area, began a volume at 03:01 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.

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 3.0 hours before the alert went out and 33 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: 1911 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1687 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

114 
WUUS54 KSHV 140301
SVRSHV
LAC013-015-017-031-081-140400-
/O.NEW.KSHV.SV.W.0175.210614T0301Z-210614T0400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
1001 PM CDT Sun Jun 13 2021

The National Weather Service in Shreveport has issued a

* Severe Thunderstorm Warning for...
  Central De Soto Parish in northwestern Louisiana...
  Northwestern Red River Parish in northwestern Louisiana...
  Southeastern Caddo Parish in northwestern Louisiana...
  Southwestern Bienville Parish in northwestern Louisiana...
  Southeastern Bossier Parish in northwestern Louisiana...

* Until 1100 PM CDT.

* At 1000 PM CDT, severe thunderstorms were located along a line
  extending from 11 miles south of Haughton to 12 miles west of
  Ringgold to near Coushatta, moving southwest at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Shreveport, Mansfield, Coushatta, Stonewall, South Mansfield, Grand
  Cane, Edgefield, Carmel, Grand Bayou, Kingston, Loggy Bayou, Koran,
  Ninock, Crichton, Kickapoo, Keithville, Mc Dade, Reeds Store,
  Gloster and Evelyn.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3230 9393 3186 9371 3205 9327 3221 9342
      3230 9343 3247 9346
TIME...MOT...LOC 0300Z 056DEG 13KT 3237 9355 3228 9350 3219 9350 3208
9341

HAIL...<.75IN
WIND...60MPH
 
$$

09

2 follow-up statements

995 
WWUS54 KSHV 140327
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
1027 PM CDT Sun Jun 13 2021

LAC013-015-140336-
/O.CAN.KSHV.SV.W.0175.000000T0000Z-210614T0400Z/
Bienville LA-Bossier LA-
1027 PM CDT Sun Jun 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BIENVILLE AND
SOUTHEASTERN BOSSIER PARISHES IS CANCELLED...

The storms which prompted the warning have moved out of Bienville 
and Bossier Parishes. Therefore, the warning for Bienville and 
Bossier Parishes has been cancelled.

LAT...LON 3186 9371 3230 9393 3239 9368 3239 9366
      3240 9366 3240 9363 3237 9363 3236 9362
      3238 9360 3235 9362 3235 9358 3233 9358
      3233 9356 3226 9352 3221 9342 3205 9327
TIME...MOT...LOC 0326Z 057DEG 14KT 3234 9374 3227 9370 3220 9369 3214
9358 3200 9362

$$

LAC017-031-081-140400-
/O.CON.KSHV.SV.W.0175.000000T0000Z-210614T0400Z/
De Soto LA-Red River LA-Caddo LA-
1027 PM CDT Sun Jun 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR CENTRAL DE SOTO...NORTHWESTERN RED RIVER AND SOUTHEASTERN CADDO
PARISHES...

At 1026 PM CDT, severe thunderstorms were located along a line
extending from 9 miles south of Shreveport to 7 miles east of
Stonewall to near Mansfield, moving southwest at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Shreveport, Mansfield, Coushatta, Stonewall, South Mansfield, Grand
Cane, Edgefield, Gloster, Carmel, Evelyn, Frierson, Caspiana, Grand
Bayou, Taylortown, Kingston, Loggy Bayou, Crichton, Kickapoo,
Keithville and Robson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3186 9371 3230 9393 3239 9368 3239 9366
      3240 9366 3240 9363 3237 9363 3236 9362
      3238 9360 3235 9362 3235 9358 3233 9358
      3233 9356 3226 9352 3221 9342 3205 9327
TIME...MOT...LOC 0326Z 057DEG 14KT 3234 9374 3227 9370 3220 9369 3214
9358 3200 9362

HAIL...<.75IN
WIND...60MPH
 
$$

09

833 
WWUS54 KSHV 140350
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
1050 PM CDT Sun Jun 13 2021

LAC081-140359-
/O.CAN.KSHV.SV.W.0175.000000T0000Z-210614T0400Z/
Red River LA-
1050 PM CDT Sun Jun 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN RED RIVER PARISH
IS CANCELLED...

The storms which prompted the warning have moved out of Red River 
Parish. Therefore, the warning for Red River Parish has been 
cancelled.

LAT...LON 3237 9373 3226 9365 3215 9359 3205 9353
      3195 9350 3186 9371 3230 9393
TIME...MOT...LOC 0349Z 055DEG 14KT 3228 9384 3221 9380 3214 9379 3207
9377 3191 9372

$$

LAC017-031-140400-
/O.CON.KSHV.SV.W.0175.000000T0000Z-210614T0400Z/
De Soto LA-Caddo LA-
1050 PM CDT Sun Jun 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR CENTRAL DE SOTO AND SOUTH CENTRAL CADDO PARISHES...

At 1049 PM CDT, severe thunderstorms were located along a line
extending from Stonewall to 17 miles south of Shreveport to 16 miles
northeast of Logansport to near Mansfield to 8 miles north of
Converse, moving southwest at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Mansfield, Stonewall, South Mansfield, Grand Cane, Gloster, Carmel,
Frierson, Kickapoo, Keithville, Kingston and Reeds Store.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3237 9373 3226 9365 3215 9359 3205 9353
      3195 9350 3186 9371 3230 9393
TIME...MOT...LOC 0349Z 055DEG 14KT 3228 9384 3221 9380 3214 9379 3207
9377 3191 9372

HAIL...<.75IN
WIND...60MPH
 
$$

09

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 7:10 PM CDT	Special Weather Statement	SHV	LaSalle	50 min
Jun 13, 8:04 PM CDT	Severe Thunderstorm Warning	SHV	Grant, Natchitoches, Winn	56 min
Jun 13, 8:28 PM CDT	Special Weather Statement	SHV	Winn	32 min
Jun 13, 8:56 PM CDT	Special Weather Statement	SHV	Natchitoches, Red River	64 min
Jun 14, 3:06 AM CDT	Heat Advisory	SHV	Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more	16 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.