Alert archive / Louisiana / Tornado Warnings in 2020
Tornado Warning 21, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Apr 12, 2020, 9:51 AM CDT for 6 parishes in Louisiana. It was in force for 24 min. 6 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 12, 2020, 9:51 AM CDT (14:51 UTC)
- Expired
- Apr 12, 2020, 10:15 AM CDT
- In force
- 24 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Tornado
- Observed
- Damage threat
- Considerable
- Hail
- 1.0 in
Counties Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, De Soto Parish, LA, Red River Parish, LA, Webster Parish, LA
The radar
The Shreveport radar (KSHV), 30 km from the middle of the area, began a volume at 14:55 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 12, 9:51 AM CDT | TORNADO | 8 Se Stonewall, LA | MOBILE HOME COMPLETELY DESTROYED ON HWY 5 IN KINGSTON, ONE MAN REPORTED IN THE HOME SURVIVED INJURIES UNKNOWN AT THIS TIME. |
| Apr 12, 10:02 AM CDT | TSTM WND DMG | 11 Wnw Ringgold, LA | TWO HARDWOOD TREES UPROOTED AND BLOWN TO THE ENE, INDICATIVE OF STRAIGHT-LINE WIND DAMAGE. WINDS ESTIMATED AT 80 MPH. |
| Apr 12, 10:05 AM CDT | TSTM WND DMG | 9 S Doyline, LA | MULTIPLE TREES BLOWN OVER TO THE ENE AROUND SPRING BRANCH AND TEAGUE ROADS, INDICATIVE OF STRAIGHT-LINE WIND DAMAGE. THERE WAS A PORCH STRUCTURE BLOWN OFF A RESIDENCE ALONG SPRING BRANCH ROAD, BUT HERE DAMAGE WAS ALSO INDICATIVE OF STRAIGHT-LINE WINDS. |
| Apr 12, 10:10 AM CDT | TORNADO | 7 Sse Doyline, LA | MULTIPLE TREES REPORTED DOWN ON PLUM ORCHARD ROAD IN DOYLINE. |
| Apr 12, 10:10 AM CDT | TORNADO | 7 Sse Doyline, LA | CORRECTS PREVIOUS TORNADO REPORT FROM 7 SSE DOYLINE. AN EF-1 TORNADO WITH ESTIMATED MAXIMUM WINDS NEAR 105 MPH TOUCHED DOWN WEST OF GORTON ROAD AND NORTH OF HIGHWAY 163 ON THE SOUTHWEST SHORE OF LAKE BISTINEAU, WHERE IT UPROOTED AND SNAPPED TREES AS IT CROSSED |
| Apr 12, 10:15 AM CDT | TORNADO | 7 Sse Doyline, LA | AN EF-1 TORNADO WITH ESTIMATED MAXIMUM WINDS NEAR 105 MPH TOUCHED DOWN WEST OF GORTON ROAD AND NORTH OF HIGHWAY 163 ON THE SOUTHWEST SHORE OF LAKE BISTINEAU, WHERE IT UPROOTED AND SNAPPED TREES AS IT CROSSED THE LAKE ONTO MOSS POINT LOOP ROAD. THE TORNADO RIPP |
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 12, 5:52 AM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 2.9 hours before the alert went out and 26 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
- 605 J/kg
- Mixed-layer CIN
- -277 J/kg
- Mixed-layer LCL
- 681 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 255 m²/s²
- 0-3 km storm-relative helicity
- 308 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
The text
As transmitted.
094
WFUS54 KSHV 121451
TORSHV
LAC013-015-017-031-081-119-121515-
/O.NEW.KSHV.TO.W.0021.200412T1451Z-200412T1515Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
951 AM CDT Sun Apr 12 2020
The National Weather Service in Shreveport has issued a
* Tornado Warning for...
Southwestern Webster Parish in northwestern Louisiana...
North central De Soto Parish in northwestern Louisiana...
Northwestern Red River Parish in northwestern Louisiana...
Southeastern Caddo Parish in northwestern Louisiana...
West central Bienville Parish in northwestern Louisiana...
Southeastern Bossier Parish in northwestern Louisiana...
* Until 1015 AM CDT.
* At 951 AM CDT, a confirmed large and extremely dangerous tornado
was located 7 miles southeast of Stonewall, or 12 miles north of
Mansfield, moving northeast at 55 mph.
This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!
HAZARD...Damaging tornado.
SOURCE...Radar confirmed tornado.
IMPACT...You are in a life-threatening situation. Flying debris
may be deadly to those caught without shelter. Mobile
homes will be destroyed. Considerable damage to homes,
businesses, and vehicles is likely and complete
destruction is possible.
* Locations impacted include...
Haughton, Ringgold, Doyline, Frierson, Curtis, Caspiana, Lake
Bistineau South, Taylortown, Elm Grove, Kingston, Plum Orchard
Landing, Koran, Lake Bistineau North and Mc Dade.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, 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 3217 9373 3223 9378 3257 9346 3234 9323
TIME...MOT...LOC 1451Z 227DEG 49KT 3222 9371
TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.00IN
$$
091 follow-up statement
385
WWUS54 KSHV 121502 RRA
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
1002 AM CDT Sun Apr 12 2020
LAC031-121512-
/O.CAN.KSHV.TO.W.0021.000000T0000Z-200412T1515Z/
De Soto LA-
1002 AM CDT Sun Apr 12 2020
...THE TORNADO WARNING FOR NORTH CENTRAL DE SOTO PARISH IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area.
A Tornado Watch remains in effect until noon CDT for northwestern
Louisiana.
LAT...LON 3222 9359 3231 9363 3247 9336 3234 9323
TIME...MOT...LOC 1502Z 246DEG 37KT 3225 9358
$$
LAC013-015-017-081-119-121515-
/O.CON.KSHV.TO.W.0021.000000T0000Z-200412T1515Z/
Webster LA-Red River LA-Caddo LA-Bienville LA-Bossier LA-
1002 AM CDT Sun Apr 12 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 AM CDT FOR SOUTH
CENTRAL WEBSTER...NORTHWESTERN RED RIVER...SOUTHEASTERN CADDO...WEST
CENTRAL BIENVILLE AND SOUTHEASTERN BOSSIER PARISHES...
At 1002 AM CDT, a confirmed tornado was located 13 miles east of
Stonewall, or 16 miles northeast of Mansfield, moving northeast at 40
mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Radar confirmed tornado.
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...
Ringgold, Caspiana, Lake Bistineau South, Elm Grove, Lake Bistineau
North, Mc Dade and Plum Orchard Landing.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. 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 3222 9359 3231 9363 3247 9336 3234 9323
TIME...MOT...LOC 1502Z 246DEG 37KT 3225 9358
TORNADO...OBSERVED
HAIL...1.00IN
$$
50The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 2:45 AM CDT | Lake Wind Advisory | SHV | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more | 21 hr |
| Apr 12, 6:33 AM CDT | Special Weather Statement | SHV | Caddo | 42 min |
| Apr 12, 8:28 AM CDT | Severe Thunderstorm Warning | SHV | Ouachita | 17 min |
| Apr 12, 9:12 AM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo, Webster | 63 min |
| Apr 12, 9:15 AM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Caddo, De Soto, Red River, Webster | 45 min |
| Apr 12, 9:15 AM CDT | Tornado Warning | SHV | Caddo | 30 min |
| Apr 12, 9:20 AM CDT | Severe Thunderstorm Warning | SHV | De Soto, Natchitoches, Red River, Sabine | 40 min |
| Apr 12, 9:30 AM CDT | Tornado Warning | SHV | De Soto | 30 min |
| Apr 12, 9:41 AM CDT | Tornado Warning | SHV | Bossier, Caddo | 28 min |
| Apr 12, 9:53 AM CDT | Tornado Warning | SHV | Bossier, Caddo, De Soto, Red River | 29 min |
| Apr 12, 9:58 AM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, De Soto, Natchitoches, Red River, Sabine and 1 more | 62 min |
| Apr 12, 10:00 AM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Caddo, Claiborne, De Soto, Lincoln and 2 more | 60 min |
| Apr 12, 10:04 AM CDT | Tornado Warning | SHV | Bossier, Claiborne, Webster | 19 min |
| Apr 12, 10:07 AM CDT | Tornado Warning | SHV | Bienville, Natchitoches, Red River | 23 min |
| Apr 12, 10:10 AM CDT | Tornado Warning | SHV | Bienville, Bossier, Red River, Webster | 39 min |
| Apr 12, 10:13 AM CDT | Tornado Warning | SHV | Bienville, Claiborne, Lincoln, Webster | 47 min |
| Apr 12, 10:28 AM CDT | Tornado Warning | SHV | Bienville, Natchitoches | 47 min |
| Apr 12, 10:46 AM CDT | Tornado Warning | SHV | Bienville, Jackson | 29 min |
| Apr 12, 10:47 AM CDT | Severe Thunderstorm Warning | SHV | Claiborne, Jackson, Lincoln, Ouachita, Union | 58 min |
| Apr 12, 10:56 AM CDT | Tornado Warning | SHV | Bienville, Claiborne, Lincoln, Union | 24 min |
| Apr 12, 11:16 AM CDT | Tornado Warning | SHV | Lincoln, Ouachita, Union | 29 min |
| Apr 12, 11:33 AM CDT | Tornado Warning | SHV | Ouachita | 29 min |
| Apr 12, 11:42 AM CDT | Tornado Warning | SHV | Ouachita | 18 min |
| Apr 12, 12:16 PM CDT | Severe Thunderstorm Warning | SHV | Caddo, De Soto | 27 min |
| Apr 12, 12:54 PM CDT | Special Weather Statement | SHV | Claiborne, Webster | 51 min |
| Apr 12, 1:25 PM CDT | Special Weather Statement | SHV | Union | 35 min |
| Apr 12, 1:50 PM CDT | Special Weather Statement | SHV | Caldwell | 40 min |
| Apr 12, 1:55 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, LaSalle, Ouachita, Winn | 24 min |
| Apr 12, 2:24 PM CDT | Special Weather Statement | SHV | Natchitoches | 51 min |
| Apr 12, 3:19 PM CDT | Special Weather Statement | SHV | Natchitoches, Winn | 41 min |
| Apr 12, 3:37 PM CDT | Special Weather Statement | SHV | Jackson, Ouachita | 38 min |
| Apr 12, 3:42 PM CDT | Severe Thunderstorm Warning | SHV | Grant, LaSalle, Natchitoches | 63 min |
| Apr 12, 3:59 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Grant, LaSalle, Winn | 46 min |
| Apr 12, 6:35 PM CDT | Special Weather Statement | SHV | Ouachita | 40 min |
| Apr 12, 6:41 PM CDT | Special Weather Statement | SHV | Claiborne | 49 min |
| Apr 12, 6:55 PM CDT | Severe Thunderstorm Warning | SHV | Caddo | 50 min |
Nearby
Tornado Warnings in Louisiana, 2020Every tornado warning in 2020Tornadoes in 2020
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.