Alert archive / Texas / Tornado Watches in 2024
Tornado Watch 711
The Storm Prediction Center issued this tornado watch at Nov 18, 2024, 2:55 PM CST for 11 parishes in Louisiana; 12 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 18, 2024, 2:55 PM CST (20:55 UTC)
- Expired
- Nov 18, 2024, 10:00 PM CST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 55 kt
All 23 counties
Beauregard Parish, LA, Bienville Parish, LA, De Soto Parish, LA, Grant Parish, LA, Jackson Parish, LA, Natchitoches Parish, LA, Rapides Parish, LA, Red River Parish, LA, Sabine Parish, LA, Vernon Parish, LA, Winn Parish, LA, Angelina County, TX, Hardin County, TX, Jasper County, TX, Liberty County, TX, Nacogdoches County, TX, Newton County, TX, Polk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Tyler County, TX
The radar
The Ft Polk radar (KPOE), 51 km from the middle of the area, began a volume at 20:54 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 50%
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 3:00 PM CST | Tornado Warning | LCH | Jasper | 15 min |
| Nov 18, 3:02 PM CST | Tornado Warning | HGX | Liberty | 13 min |
| Nov 18, 3:10 PM CST | Tornado Warning | LCH | Hardin | 35 min |
| Nov 18, 3:44 PM CST | Severe Thunderstorm Warning | LCH | Hardin, Tyler | 31 min |
| Nov 18, 4:49 PM CST | Tornado Warning | LCH | Jasper, Newton | 26 min |
| Nov 18, 5:26 PM CST | Tornado Warning | LCH | Vernon | 34 min |
| Nov 18, 5:58 PM CST | Tornado Warning | LCH | Vernon | 15 min |
| Nov 18, 7:52 PM CST | Severe Thunderstorm Warning | SHV | Grant, Natchitoches, Winn | 38 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.9 hours before the alert went out and 152 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
- 9 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 766 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 297 m²/s²
- 0-3 km storm-relative helicity
- 295 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 12:41 PM CST | Mesoscale Discussion | SPC | Allen, Beauregard, Bienville, Bossier, Caddo, Calcasieu and 7 more | 2 hr |
| Nov 18, 3:29 PM CST | Mesoscale Discussion | SPC | Natchitoches, Sabine, Vernon, Winn | 91 min |
| Nov 17, 8:53 PM CST | Mesoscale Discussion | SPC | Borden, Callahan, Coke, Crane, Crockett, Crosby and 28 more | 2 hr |
| Nov 17, 9:45 PM CST | Severe Thunderstorm Watch | SPC | Andrews, Borden, Coke, Crane, Crockett, Crosby and 28 more | 6 hr |
| Nov 17, 11:36 PM CST | Mesoscale Discussion | SPC | Borden, Callahan, Coke, Crane, Crockett, Crosby and 28 more | 114 min |
| Nov 18, 2:02 AM CST | Mesoscale Discussion | SPC | Archer, Baylor, Callahan, Childress, Clay, Coke and 20 more | 88 min |
| Nov 18, 2:02 AM CST | Tornado Watch | SPC | Archer, Baylor, Callahan, Clay, Eastland, Fisher and 16 more | 7 hr |
| Nov 18, 3:34 AM CST | Mesoscale Discussion | SPC | Blanco, Brown, Burnet, Coleman, Comanche, Concho and 18 more | 116 min |
| Nov 18, 4:09 AM CST | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Montague, Throckmorton, Wichita | 2 hr |
| Nov 18, 6:25 AM CST | Mesoscale Discussion | SPC | Cooke, Denton, Erath, Grayson, Hood, Jack and 7 more | 2 hr |
| Nov 18, 9:29 AM CST | Mesoscale Discussion | SPC | Anderson, Camp, Collin, Dallas, Delta, Ellis and 17 more | 2 hr |
Nearby
Tornado Watches in Texas, 2024Tornado Watches in Louisiana, 2024Every tornado watch in 2024
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.