Alert archive / Louisiana / Tornado Warnings in 2021
Tornado Warning 6, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Mar 17, 2021, 3:12 PM CDT for 4 parishes in Louisiana. It was in force for 48 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
- Mar 17, 2021, 3:12 PM CDT (20:12 UTC)
- Expired
- Mar 17, 2021, 4:00 PM CDT
- In force
- 48 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Jackson Parish, LA, Lincoln Parish, LA, Ouachita Parish, LA, Union Parish, LA
The radar
The Shreveport radar (KSHV), 127 km from the middle of the area, began a volume at 20:14 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 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, 12:57 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 8.2 hours before the alert went out and 119 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.
- Mixed-layer CAPE
- 1417 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 682 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 328 m²/s²
- 0-3 km storm-relative helicity
- 340 m²/s²
- Significant tornado parameter
- 2.7
- Supercell composite
- 14.5
The text
As transmitted.
723
WFUS54 KSHV 172012
TORSHV
LAC049-061-073-111-172100-
/O.NEW.KSHV.TO.W.0006.210317T2012Z-210317T2100Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
312 PM CDT Wed Mar 17 2021
The National Weather Service in Shreveport has issued a
* Tornado Warning for...
Central Jackson Parish in north central Louisiana...
South central Union Parish in north central Louisiana...
West central Ouachita Parish in north central Louisiana...
Southeastern Lincoln Parish in north central Louisiana...
* Until 400 PM CDT.
* At 312 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles northeast of Jonesboro, 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...
Claiborne around 355 PM CDT.
Other locations impacted by this tornadic thunderstorm include Eros,
Cheniere, Calhoun, Downsville, Mineral Springs, Caderville, Eureka,
Folksville and Choudrant.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or 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 3224 9261 3230 9270 3266 9239 3249 9214
TIME...MOT...LOC 2012Z 221DEG 36KT 3231 9260
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
134 follow-up statements
368
WWUS54 KSHV 172021
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
321 PM CDT Wed Mar 17 2021
LAC049-061-073-111-172100-
/O.CON.KSHV.TO.W.0006.000000T0000Z-210317T2100Z/
Jackson LA-Union LA-Ouachita LA-Lincoln LA-
321 PM CDT Wed Mar 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
NORTHEASTERN JACKSON...SOUTH CENTRAL UNION...WEST CENTRAL OUACHITA
AND SOUTHEASTERN LINCOLN PARISHES...
At 320 PM CDT, a severe thunderstorm capable of producing a tornado
was located 12 miles southeast of Ruston, moving northeast at 40 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Claiborne around 355 PM CDT.
Other locations impacted by this tornadic thunderstorm include Eros,
Cheniere, Calhoun, Downsville, Mineral Springs, Caderville, Eureka
and Folksville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3232 9253 3238 9260 3266 9239 3249 9214
TIME...MOT...LOC 2020Z 221DEG 36KT 3238 9253
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
13356
WWUS54 KSHV 172030
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
330 PM CDT Wed Mar 17 2021
LAC049-061-073-111-172100-
/O.CON.KSHV.TO.W.0006.000000T0000Z-210317T2100Z/
Jackson LA-Union LA-Ouachita LA-Lincoln LA-
330 PM CDT Wed Mar 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
NORTHEASTERN JACKSON...SOUTH CENTRAL UNION...WEST CENTRAL OUACHITA
AND SOUTHEASTERN LINCOLN PARISHES...
At 330 PM CDT, a severe thunderstorm capable of producing a tornado
was located 11 miles southeast of Ruston, 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...
Claiborne around 355 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Cheniere, Calhoun, Mineral Springs, Caderville, Eureka, Folksville
and Downsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or 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 3239 9247 3244 9254 3266 9239 3249 9214
TIME...MOT...LOC 2030Z 220DEG 35KT 3244 9247
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
13308
WWUS54 KSHV 172039
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
339 PM CDT Wed Mar 17 2021
LAC049-061-073-111-172100-
/O.CON.KSHV.TO.W.0006.000000T0000Z-210317T2100Z/
Jackson LA-Union LA-Ouachita LA-Lincoln LA-
339 PM CDT Wed Mar 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR
NORTHEASTERN JACKSON...SOUTH CENTRAL UNION...WEST CENTRAL OUACHITA
AND EAST CENTRAL LINCOLN PARISHES...
At 339 PM CDT, a severe thunderstorm capable of producing a tornado
was located 11 miles west of Claiborne, moving northeast at 40 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
northeastern Jackson, south central Union, west central Ouachita and
east central Lincoln Parishes, including the following locations...
Calhoun, Mineral Springs, Eureka, Folksville and Downsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3245 9240 3250 9246 3266 9239 3255 9223
TIME...MOT...LOC 2039Z 221DEG 36KT 3251 9240
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
13697
WWUS54 KSHV 172048
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
348 PM CDT Wed Mar 17 2021
LAC049-061-172057-
/O.CAN.KSHV.TO.W.0006.000000T0000Z-210317T2100Z/
Jackson LA-Lincoln LA-
348 PM CDT Wed Mar 17 2021
...THE TORNADO WARNING FOR NORTHEASTERN JACKSON AND EAST CENTRAL
LINCOLN 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 700 PM CDT for north central
Louisiana.
LAT...LON 3251 9235 3255 9241 3266 9239 3256 9225
TIME...MOT...LOC 2047Z 220DEG 35KT 3256 9235
$$
LAC073-111-172100-
/O.CON.KSHV.TO.W.0006.000000T0000Z-210317T2100Z/
Union LA-Ouachita LA-
348 PM CDT Wed Mar 17 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR SOUTHERN
UNION AND WEST CENTRAL OUACHITA PARISHES...
At 347 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles west of Claiborne, moving northeast at 40 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Eureka.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3251 9235 3255 9241 3266 9239 3256 9225
TIME...MOT...LOC 2047Z 220DEG 35KT 3256 9235
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
13The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 2:45 AM CDT | Lake Wind Advisory | SHV | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more | 40 hr |
| Mar 17, 8:34 AM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo | 56 min |
| Mar 17, 8:40 AM CDT | Severe Thunderstorm Warning | SHV | Caddo | 44 min |
| Mar 17, 9:29 AM CDT | Severe Thunderstorm Warning | SHV | De Soto, Sabine | 61 min |
| Mar 17, 9:31 AM CDT | Special Weather Statement | SHV | Bossier, Caddo, Webster | 59 min |
| Mar 17, 10:29 AM CDT | Special Weather Statement | SHV | De Soto | 61 min |
| Mar 17, 10:36 AM CDT | Special Weather Statement | SHV | Claiborne, Webster | 39 min |
| Mar 17, 11:02 AM CDT | Special Weather Statement | SHV | Bienville, Red River, Webster | 43 min |
| Mar 17, 11:46 AM CDT | Special Weather Statement | SHV | Bienville, Jackson, Red River | 59 min |
| Mar 17, 12:36 PM CDT | Special Weather Statement | SHV | Natchitoches, Red River, Sabine | 39 min |
| Mar 17, 2:08 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Jackson, Lincoln, Ouachita, Union | 52 min |
| Mar 17, 2:16 PM CDT | Severe Thunderstorm Warning | SHV | Claiborne, Lincoln, Union | 44 min |
| Mar 17, 2:32 PM CDT | Tornado Warning | SHV | Union | 43 min |
| Mar 17, 2:58 PM CDT | Tornado Warning | SHV | Lincoln, Ouachita, Union | 47 min |
| Mar 17, 3:34 PM CDT | Tornado Warning | SHV | Union | 10 min |
Nearby
Tornado Warnings in Louisiana, 2021Every tornado warning in 2021Tornadoes 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.