Alert archive / Louisiana / Tornado Watches in 2019
Tornado Watch 53
The Storm Prediction Center issued this tornado watch at Apr 13, 2019, 11:26 AM CDT for 24 parishes in Louisiana; 24 counties in Texas. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 13, 2019, 11:26 AM CDT (16:26 UTC)
- Expired
- Apr 13, 2019, 7:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 65 kt
All 48 counties
Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Evangeline Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Red River Parish, LA, Sabine Parish, LA, Saint Landry Parish, LA, Union Parish, LA, Vernon Parish, LA, Webster Parish, LA, Winn Parish, LA, Angelina County, TX, Brazos County, TX, Cherokee County, TX, Grimes County, TX, Hardin County, TX, Harrison County, TX, Houston County, TX, Jasper County, TX, Liberty County, TX, Madison County, TX, Marion County, TX, Montgomery County, TX, Nacogdoches County, TX, Newton County, TX, Panola County, TX, Polk County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Trinity County, TX, Tyler County, TX, Walker County, TX
The radar
The Ft Polk radar (KPOE), 145 km from the middle of the area, began a volume at 16:26 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
- 70%
- One or more EF2 to EF5 tornadoes
- 60%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 60%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
52 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 11:29 AM CDT | Tornado Warning | HGX | Houston | 31 min |
| Apr 13, 11:35 AM CDT | Tornado Warning | HGX | Brazos, Madison | 25 min |
| Apr 13, 11:35 AM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Nacogdoches | 40 min |
| Apr 13, 11:37 AM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo, De Soto, Webster | 53 min |
| Apr 13, 11:38 AM CDT | Tornado Warning | SHV | Cherokee, Nacogdoches | 33 min |
| Apr 13, 11:48 AM CDT | Severe Thunderstorm Warning | SHV | Bienville, Claiborne, Lincoln | 22 min |
| Apr 13, 11:48 AM CDT | Severe Thunderstorm Warning | HGX | Grimes, Houston, Madison, Walker | 42 min |
| Apr 13, 11:50 AM CDT | Tornado Warning | HGX | Grimes, Houston, Madison, Walker | 25 min |
| Apr 13, 12:12 PM CDT | Tornado Warning | HGX | Houston, Madison, Walker | 48 min |
| Apr 13, 12:12 PM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Nacogdoches, Panola, Rusk | 20 min |
| Apr 13, 12:27 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Burleson | 48 min |
| Apr 13, 12:34 PM CDT | Flash Flood Warning | SHV | Bienville, Claiborne, De Soto, Lincoln, Natchitoches, Red River and 1 more | 5 hr |
| Apr 13, 12:37 PM CDT | Tornado Warning | HGX | Grimes, Houston, Madison | 23 min |
| Apr 13, 12:43 PM CDT | Tornado Warning | HGX | Houston | 47 min |
| Apr 13, 12:52 PM CDT | Tornado Warning | HGX | Houston, Madison | 38 min |
| Apr 13, 12:55 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Claiborne, Red River, Webster | 65 min |
| Apr 13, 1:05 PM CDT | Tornado Warning | SHV | Cherokee, Nacogdoches | 40 min |
| Apr 13, 1:09 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Claiborne, Jackson, Lincoln, Natchitoches, Red River and 1 more | 66 min |
| Apr 13, 1:18 PM CDT | Severe Thunderstorm Warning | HGX | Houston | 42 min |
| Apr 13, 1:30 PM CDT | Tornado Warning | HGX | Houston, Trinity | 45 min |
| Apr 13, 1:36 PM CDT | Tornado Warning | SHV | Angelina, Cherokee, Nacogdoches | 24 min |
| Apr 13, 1:39 PM CDT | Tornado Warning | SHV | Cherokee, Nacogdoches, Rusk | 36 min |
| Apr 13, 1:44 PM CDT | Severe Thunderstorm Warning | HGX | Montgomery, San Jacinto, Walker | 31 min |
| Apr 13, 1:47 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Jackson, Lincoln, Ouachita, Union | 58 min |
| Apr 13, 1:55 PM CDT | Severe Thunderstorm Warning | HGX | Houston, Polk, Trinity | 25 min |
| Apr 13, 1:58 PM CDT | Tornado Warning | SHV | Rusk | 15 min |
| Apr 13, 2:00 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Caldwell, Jackson, Natchitoches, Ouachita, Winn | 60 min |
| Apr 13, 2:01 PM CDT | Severe Thunderstorm Warning | SHV | Angelina, Cherokee, Nacogdoches, San Augustine | 44 min |
| Apr 13, 2:04 PM CDT | Severe Thunderstorm Warning | HGX | Polk, San Jacinto, Trinity | 26 min |
| Apr 13, 2:08 PM CDT | Tornado Warning | SHV | Nacogdoches, Rusk | 11 min |
| Apr 13, 2:14 PM CDT | Severe Thunderstorm Warning | HGX | Grimes, Montgomery, Walker, Waller | 12 min |
| Apr 13, 2:16 PM CDT | Tornado Warning | SHV | Caldwell, Jackson, Ouachita, Winn | 29 min |
| Apr 13, 2:19 PM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Gregg, Harrison, Panola, Rusk, Shelby and 3 more | 41 min |
| Apr 13, 2:23 PM CDT | Tornado Warning | LCH | Rapides | 18 min |
| Apr 13, 2:23 PM CDT | Severe Thunderstorm Warning | HGX | Polk | 22 min |
| Apr 13, 2:28 PM CDT | Severe Thunderstorm Warning | SHV | Grant, LaSalle | 62 min |
| Apr 13, 2:37 PM CDT | Tornado Warning | SHV | Nacogdoches, San Augustine, Shelby | 10 min |
| Apr 13, 2:41 PM CDT | Severe Thunderstorm Warning | SHV | Angelina, Nacogdoches, Sabine, San Augustine, Shelby | 45 min |
| Apr 13, 2:46 PM CDT | Severe Thunderstorm Warning | SHV | Gregg, Harrison, Panola, Rusk, Shelby | 44 min |
| Apr 13, 2:47 PM CDT | Severe Thunderstorm Warning | SHV | Jackson, Lincoln, Ouachita, Union | 43 min |
| Apr 13, 2:55 PM CDT | Tornado Warning | SHV | Sabine, San Augustine | 14 min |
| Apr 13, 2:59 PM CDT | Severe Thunderstorm Warning | SHV | Caldwell, Jackson, LaSalle, Ouachita, Winn | 46 min |
| Apr 13, 3:05 PM CDT | Tornado Warning | SHV | Sabine | 25 min |
| Apr 13, 3:08 PM CDT | Severe Thunderstorm Warning | HGX | Polk, San Jacinto | 9 min |
| Apr 13, 3:11 PM CDT | Severe Thunderstorm Warning | SHV | De Soto, Sabine | 64 min |
| Apr 13, 3:13 PM CDT | Severe Thunderstorm Warning | SHV | Bossier, Caddo, De Soto, Red River | 50 min |
| Apr 13, 3:13 PM CDT | Severe Thunderstorm Warning | HGX | Harris, Montgomery | 32 min |
| Apr 13, 3:26 PM CDT | Tornado Warning | SHV | De Soto, Natchitoches, Sabine | 19 min |
| Apr 13, 3:29 PM CDT | Severe Thunderstorm Warning | SHV | Ouachita, Union | 6 min |
| Apr 13, 3:43 PM CDT | Flash Flood Warning | SHV | Caldwell, Claiborne, Jackson, Lincoln, Ouachita, Union and 1 more | 3 hr |
| Apr 13, 3:55 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, De Soto, Natchitoches, Red River, Sabine | 50 min |
| Apr 13, 5:20 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Evangeline, Jefferson Davis, Rapides, Vernon | 40 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, 4.4 hours before the alert went out and 164 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
- 1903 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 617 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 280 m²/s²
- 0-3 km storm-relative helicity
- 468 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 10.7
The text
As transmitted.
713
WWUS20 KWNS 131623
SEL3
SPC WW 131623
LAZ000-TXZ000-140000-
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 53
NWS Storm Prediction Center Norman OK
1125 AM CDT Sat Apr 13 2019
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northern and central Louisiana
Eastern Texas
* Effective this Saturday morning and evening from 1125 AM until
700 PM CDT.
* Primary threats include...
A few tornadoes and a couple intense tornadoes likely
Scattered large hail and isolated very large hail events to 2.5
inches in diameter likely
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
SUMMARY...Discrete supercells and clusters should continue to
develop near a west-east oriented warm front that is advancing
north. All hazards are expected throughout the afternoon.
The tornado watch area is approximately along and 45 statute miles
either side of a line from 40 miles west southwest of Huntsville TX
to 25 miles northeast of Alexandria LA. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU3).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 50...WW 51...WW 52...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2.5 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 21040.
...GramsSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 10:14 PM CDT | Mesoscale Discussion | SPC | Beauregard, Calcasieu, Vernon | 3 hr |
| Apr 13, 1:52 AM CDT | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Caldwell, Catahoula, Claiborne and 20 more | 113 min |
| Apr 13, 9:49 AM CDT | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, De Soto, Natchitoches, Red River and 2 more | 56 min |
| Apr 13, 10:01 AM CDT | Severe Thunderstorm Watch | SPC | Bienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 11 more | 5 hr |
| Apr 13, 11:52 AM CDT | Mesoscale Discussion | SPC | De Soto, Natchitoches, Red River, Sabine, Vernon | 83 min |
| Apr 13, 12:53 PM CDT | Mesoscale Discussion | SPC | East Carroll, Franklin, Madison, Richland, Tensas, West Carroll | 2 hr |
| Apr 13, 1:38 PM CDT | Mesoscale Discussion | SPC | Allen, Avoyelles, Beauregard, Catahoula, De Soto, Grant and 7 more | 97 min |
| Apr 13, 2:20 PM CDT | Tornado Watch | SPC | Catahoula, Concordia, East Carroll, East Feliciana, Franklin, Madison and 7 more | 10 hr |
| Apr 13, 3:39 PM CDT | Mesoscale Discussion | SPC | Allen, Avoyelles, Beauregard, Bienville, Bossier, Calcasieu and 25 more | 96 min |
| Apr 13, 4:35 PM CDT | Mesoscale Discussion | SPC | Caldwell, Franklin, Grant, LaSalle, Madison, Richland and 2 more | 55 min |
| Apr 12, 11:40 PM CDT | Mesoscale Discussion | SPC | Coke, Crane, Crockett, Ector, Glasscock, Howard and 13 more | 2 hr |
| Apr 13, 12:56 AM CDT | Mesoscale Discussion | SPC | Bandera, Crockett, Edwards, Kerr, Kimble, Kinney and 7 more | 2 hr |
| Apr 13, 1:32 AM CDT | Severe Thunderstorm Watch | SPC | Brown, Callahan, Coke, Coleman, Concho, Crane and 21 more | 8 hr |
| Apr 13, 1:50 AM CDT | Tornado Watch | SPC | Bandera, Crockett, Edwards, Frio, Gillespie, Kendall and 13 more | 8 hr |
| Apr 13, 4:35 AM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Callahan, Coke, Coleman, Comanche and 26 more | 55 min |
| Apr 13, 4:50 AM CDT | Mesoscale Discussion | SPC | Bandera, Crockett, Edwards, Frio, Gillespie, Kendall and 13 more | 55 min |
| Apr 13, 6:48 AM CDT | Mesoscale Discussion | SPC | Bell, Bosque, Brown, Callahan, Coleman, Comanche and 27 more | 57 min |
| Apr 13, 7:11 AM CDT | Mesoscale Discussion | SPC | Bandera, Bastrop, Bell, Bexar, Blanco, Burleson and 28 more | 2 hr |
| Apr 13, 7:55 AM CDT | Severe Thunderstorm Watch | SPC | Anderson, Bell, Bosque, Comanche, Coryell, Dallas and 27 more | 6 hr |
| Apr 13, 8:38 AM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 22 more | 5 hr |
| Apr 13, 9:40 AM CDT | Mesoscale Discussion | SPC | Bastrop, Bell, Bexar, Blanco, Brazos, Burleson and 19 more | 95 min |
| Apr 13, 11:11 AM CDT | Mesoscale Discussion | SPC | Brazos, Grimes, Hardin, Harris, Jasper, Liberty and 10 more | 34 min |
Nearby
Tornado Watches in Louisiana, 2019Tornado Watches in Texas, 2019Every tornado watch in 2019
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.