Alert archive / Texas / Tornado Warnings in 2020
Tornado Warning 9, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Jan 11, 2020, 12:34 AM CST for Caddo Parish, Louisiana; Harrison County, Marion County, Texas. It was in force for 41 min. 4 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
- Jan 11, 2020, 12:34 AM CST (06:34 UTC)
- Expired
- Jan 11, 2020, 1:15 AM CST
- In force
- 41 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Caddo Parish, LA, Harrison County, TX, Marion County, TX
The radar
The Shreveport radar (KSHV), 25 km from the middle of the area, began a volume at 06:39 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 |
|---|---|---|---|
| Jan 11, 12:36 AM CST | TSTM WND DMG | 5 Sw Uncertain, TX | TREES AND POWER LINES WERE DOWNED IN KARNACK. |
| Jan 11, 12:44 AM CST | TSTM WND DMG | 2 Wnw Oil City, LA | *** 1 FATAL *** A DAMAGE SURVEY CONFIRMED THAT STRAIGHT-LINE WINDS CAUSED SPORADIC TREE AND BRANCH DAMAGE ALONG WITH SOME MINOR DAMAGE TO HOMES IN AND AROUND OIL CITY. ONE LARGE TREE WAS UPROOTED INSIDE OIL CITY CAUSING A FATALITY WHEN IT FELL ON A HOME. |
| Jan 11, 12:50 AM CST | TSTM WND DMG | 1 Sw Oil City, LA | *** 1 INJ *** CADDO PARISH SHERIFFS OFFICE REPORTS STRUCTURAL DAMAGE AND AN INJURY AT A HOME. |
| Jan 11, 12:50 AM CST | TSTM WND DMG | 1 Wsw Oil City, LA | CADDO PARISH SHERIFFS OFFICE REPORTS DAMAGE ON FERRYLAKE ROAD. |
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 |
|---|---|---|---|
| Jan 10, 5:34 PM CST | Tornado Watch | SPC | 11 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 6.6 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
- 703 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 813 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 379 m²/s²
- 0-3 km storm-relative helicity
- 620 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 6.1
The text
As transmitted.
322
WFUS54 KSHV 110634
TORSHV
LAC017-TXC203-315-110715-
/O.NEW.KSHV.TO.W.0009.200111T0634Z-200111T0715Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Shreveport LA
1234 AM CST Sat Jan 11 2020
The National Weather Service in Shreveport has issued a
* Tornado Warning for...
West central Caddo Parish in northwestern Louisiana...
Southeastern Marion County in northeastern Texas...
Northeastern Harrison County in northeastern Texas...
* Until 115 AM CST.
* At 1234 AM CST, a severe thunderstorm capable of producing a
tornado was located over Karnack, or 11 miles northeast of
Marshall, moving east at 40 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...
Oil City and Mooringsport around 1255 AM CST.
Blanchard around 100 AM CST.
Belcher around 110 AM CST.
Other locations impacted by this tornadic thunderstorm include Dixie,
Uncertain, Caddo Lake, Bethany, Cavett, Leigh and Scottsville.
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.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3270 9431 3280 9382 3275 9380 3274 9382
3272 9383 3271 9382 3273 9380 3265 9378
3264 9379 3264 9377 3260 9376 3259 9377
3259 9382 3254 9427
TIME...MOT...LOC 0634Z 256DEG 34KT 3264 9420
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
152 follow-up statements
693
WWUS54 KSHV 110651
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
1251 AM CST Sat Jan 11 2020
TXC203-315-110700-
/O.CAN.KSHV.TO.W.0009.000000T0000Z-200111T0715Z/
Marion TX-Harrison TX-
1251 AM CST Sat Jan 11 2020
...THE TORNADO WARNING FOR SOUTHEASTERN MARION AND NORTHEASTERN
HARRISON COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 600 AM CST for northwestern
Louisiana.
LAT...LON 3275 9404 3280 9382 3275 9380 3274 9382
3272 9383 3271 9382 3273 9380 3265 9378
3264 9379 3264 9377 3260 9376 3259 9377
3259 9382 3257 9403
TIME...MOT...LOC 0650Z 270DEG 42KT 3267 9397
$$
LAC017-110715-
/O.CON.KSHV.TO.W.0009.000000T0000Z-200111T0715Z/
Caddo LA-
1251 AM CST Sat Jan 11 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 AM CST FOR WEST
CENTRAL CADDO PARISH...
At 1251 AM CST, a severe thunderstorm capable of producing a tornado
was located over Mooringsport, or 17 miles northwest of Shreveport,
moving east at 50 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...
Blanchard around 1255 AM CST.
Belcher around 100 AM CST.
Other locations impacted by this tornadic thunderstorm include Dixie,
Caddo Lake, Bethany and Cavett.
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.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3275 9404 3280 9382 3275 9380 3274 9382
3272 9383 3271 9382 3273 9380 3265 9378
3264 9379 3264 9377 3260 9376 3259 9377
3259 9382 3257 9403
TIME...MOT...LOC 0650Z 270DEG 42KT 3267 9397
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
15590
WWUS54 KSHV 110713
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
113 AM CST Sat Jan 11 2020
LAC017-110722-
/O.EXP.KSHV.TO.W.0009.000000T0000Z-200111T0715Z/
Caddo LA-
113 AM CST Sat Jan 11 2020
...THE TORNADO WARNING FOR WEST CENTRAL CADDO PARISH WILL EXPIRE AT
115 AM CST...
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, damaging winds remain likely and a Severe
Thunderstorm Warning remains in effect for the area.
A Tornado Watch remains in effect until 600 AM CST for northwestern
Louisiana.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Shreveport.
LAT...LON 3275 9404 3280 9382 3275 9380 3274 9382
3272 9383 3271 9382 3273 9380 3265 9378
3264 9379 3264 9377 3260 9376 3259 9377
3259 9382 3257 9403
TIME...MOT...LOC 0712Z 270DEG 34KT 3272 9374
$$
15The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 11, 12:40 AM CST | Severe Thunderstorm Warning | SHV | Bossier, Caddo, De Soto | 65 min |
| Jan 11, 1:00 AM CST | Severe Thunderstorm Warning | SHV | De Soto, Red River, Sabine | 45 min |
| Jan 11, 1:27 AM CST | Tornado Warning | SHV | Bossier, Webster | 28 min |
| Jan 11, 1:30 AM CST | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Claiborne, De Soto, Lincoln, Natchitoches and 3 more | 60 min |
| Jan 11, 1:39 AM CST | Severe Thunderstorm Warning | SHV | De Soto, Natchitoches, Red River, Sabine | 66 min |
| Jan 11, 1:48 AM CST | Tornado Warning | SHV | Bienville, Claiborne, Webster | 27 min |
| Jan 11, 2:16 AM CST | Severe Thunderstorm Warning | SHV | Jackson, Lincoln, Ouachita, Union | 59 min |
| Jan 11, 2:34 AM CST | Tornado Warning | SHV | Union | 41 min |
| Jan 11, 2:42 AM CST | Special Weather Statement | SHV | Natchitoches, Winn | 63 min |
| Jan 11, 3:01 AM CST | Special Weather Statement | SHV | Caldwell, Jackson | 59 min |
| Jan 11, 3:24 AM CST | Severe Thunderstorm Warning | SHV | Caldwell, Jackson, Lincoln, Ouachita, Union, Winn | 51 min |
| Jan 11, 3:43 AM CST | Severe Thunderstorm Warning | SHV | Caldwell, Grant, LaSalle, Winn | 62 min |
| Jan 11, 4:16 AM CST | Special Weather Statement | SHV | Caldwell, Ouachita | 29 min |
| Jan 11, 4:27 AM CST | Lake Wind Advisory | SHV | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more | 12 hr |
| Jan 11, 4:42 AM CST | Severe Thunderstorm Warning | SHV | Caldwell, Grant, LaSalle | 33 min |
| Jan 11, 5:15 AM CST | River Flood Warning | SHV | Webster | 11 days |
| Jan 10, 6:07 PM CST | Special Weather Statement | SHV | Red River | 53 min |
| Jan 10, 6:58 PM CST | Severe Thunderstorm Warning | SHV | Red River | 47 min |
| Jan 10, 7:06 PM CST | Tornado Warning | SHV | Red River | 24 min |
| Jan 10, 8:32 PM CST | Flash Flood Warning | SHV | Franklin, Red River, Titus | 3 hr |
| Jan 10, 9:09 PM CST | Special Weather Statement | SHV | Wood | 36 min |
| Jan 10, 10:03 PM CST | Special Weather Statement | SHV | Bowie | 57 min |
| Jan 10, 10:08 PM CST | Special Weather Statement | SHV | Camp, Franklin, Morris, Smith, Titus, Upshur and 1 more | 67 min |
| Jan 10, 10:13 PM CST | Flash Flood Warning | SHV | Bowie, Camp, Franklin, Morris, Red River, Smith and 3 more | 3 hr |
| Jan 10, 10:26 PM CST | Flash Flood Warning | SHV | Bowie, Cass, Red River | 3 hr |
| Jan 10, 10:49 PM CST | Severe Thunderstorm Warning | SHV | Cherokee, Smith | 56 min |
| Jan 10, 11:28 PM CST | Severe Thunderstorm Warning | SHV | Cherokee, Gregg, Nacogdoches, Rusk, Smith, Upshur | 62 min |
| Jan 10, 11:53 PM CST | Tornado Warning | SHV | Nacogdoches, Rusk, Shelby | 19 min |
| Jan 10, 11:57 PM CST | Severe Thunderstorm Warning | SHV | Cass, Gregg, Harrison, Marion, Nacogdoches, Panola and 2 more | 63 min |
| Jan 11, 12:06 AM CST | Tornado Warning | SHV | Harrison, Marion | 24 min |
| Jan 11, 12:09 AM CST | Tornado Warning | SHV | Panola, Rusk | 36 min |
| Jan 11, 12:21 AM CST | Tornado Warning | SHV | Harrison, Panola | 24 min |
| Jan 11, 12:38 AM CST | Tornado Warning | SHV | Nacogdoches, San Augustine, Shelby | 37 min |
| Jan 11, 9:11 AM CST | River Flood Warning | SHV | Franklin, Morris, Red River, Titus | 3 days |
| Jan 11, 9:39 AM CST | River Flood Warning | SHV | Franklin, Morris, Titus | 5 days |
Nearby
Tornado Warnings in Texas, 2020Tornado 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.