Alert archive / Louisiana / Tornado Watches in 2022
Tornado Watch 59
The Storm Prediction Center issued this tornado watch at Mar 22, 2022, 1:58 AM CDT for Columbia County, Union County, Arkansas; 10 parishes in Louisiana; 8 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 22, 2022, 1:58 AM CDT (06:58 UTC)
- Expired
- Mar 22, 2022, 7:17 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
Counties Columbia County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Lincoln Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Webster Parish, LA, Angelina County, TX, Cherokee County, TX, Nacogdoches County, TX, Panola County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX
The radar
The Shreveport radar (KSHV), 54 km from the middle of the area, began a volume at 07:01 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
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 50%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 2:12 AM CDT | Flash Flood Warning | SHV | Bossier, Caddo, Claiborne, Webster | 5 hr |
| Mar 22, 2:22 AM CDT | Flash Flood Warning | SHV | Cherokee, Nacogdoches, Panola, Rusk | 5 hr |
| Mar 22, 3:25 AM CDT | Flash Flood Warning | SHV | Bossier, Caddo, De Soto | 110 min |
| Mar 22, 4:58 AM CDT | Flash Flood Warning | SHV | Bienville, Bossier, Caddo, De Soto, Red River, Sabine | 3 hr |
| Mar 22, 5:30 AM CDT | Severe Thunderstorm Warning | SHV | Bienville, De Soto, Natchitoches, Red River, Sabine | 43 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
Shreveport, LA (KSHV), launched 00:00Z, 7.0 hours before the alert went out and 59 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
- 7 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 833 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 438 m²/s²
- 0-3 km storm-relative helicity
- 723 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 21, 8:09 PM CDT | Tornado Watch | SPC | Columbia, Hempstead, Howard, Lafayette, Little River, Miller and 2 more | 6 hr |
| Mar 21, 9:07 PM CDT | Mesoscale Discussion | SPC | Dallas, Garland, Grant, Hot Spring, Logan, Montgomery and 6 more | 53 min |
| Mar 21, 9:38 PM CDT | Severe Thunderstorm Watch | SPC | Bradley, Calhoun, Clark, Cleveland, Dallas, Garland and 7 more | 6 hr |
| Mar 21, 10:51 PM CDT | Mesoscale Discussion | SPC | Hempstead, Lafayette, Little River, Miller, Nevada | 114 min |
| Mar 21, 11:02 PM CDT | Mesoscale Discussion | SPC | Bradley, Calhoun, Clark, Cleveland, Dallas, Garland and 7 more | 118 min |
| Mar 21, 7:03 PM CDT | Mesoscale Discussion | SPC | Bossier, Caddo, De Soto | 57 min |
| Mar 22, 1:08 AM CDT | Mesoscale Discussion | SPC | Bossier, Caddo, De Soto, Webster | 97 min |
| Mar 22, 4:00 AM CDT | Mesoscale Discussion | SPC | Bienville, Claiborne, De Soto, Jackson, Lincoln, Natchitoches and 3 more | 2 hr |
| Mar 22, 6:15 AM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Caldwell and 20 more | 90 min |
| Mar 22, 7:08 AM CDT | Tornado Watch | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Caldwell and 19 more | 8 hr |
| Mar 22, 9:43 AM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Cameron, Concordia, East Baton Rouge and 14 more | 2 hr |
| Mar 22, 10:40 AM CDT | Tornado Watch | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia, Iberville and 19 more | 8 hr |
| Mar 22, 12:19 PM CDT | Mesoscale Discussion | SPC | Saint Helena, Tangipahoa, Washington | 116 min |
| Mar 22, 3:05 PM CDT | Mesoscale Discussion | SPC | Ascension, Assumption, East Baton Rouge, Livingston, Orleans, Saint Charles and 6 more | 115 min |
| Mar 22, 5:33 PM CDT | Mesoscale Discussion | SPC | Ascension, Assumption, Livingston, Orleans, Saint Helena, Saint James and 4 more | 87 min |
| Mar 21, 7:24 PM CDT | Mesoscale Discussion | SPC | Anderson, Bastrop, Bell, Brazos, Burleson, Caldwell and 32 more | 96 min |
| Mar 21, 9:12 PM CDT | Mesoscale Discussion | SPC | Anderson, Brazos, Cherokee, Freestone, Henderson, Houston and 8 more | 93 min |
| Mar 21, 10:10 PM CDT | Mesoscale Discussion | SPC | Bee, Duval, Jim Wells, Live Oak, McMullen, Refugio and 2 more | 95 min |
| Mar 22, 12:38 AM CDT | Mesoscale Discussion | SPC | Austin, Bastrop, Brazos, Burleson, Caldwell, Colorado and 27 more | 67 min |
| Mar 22, 12:59 AM CDT | Tornado Watch | SPC | Austin, Brazoria, Brazos, Burleson, Chambers, Colorado and 20 more | 8 hr |
Nearby
Tornado Watches in Louisiana, 2022Tornado Watches in Texas, 2022Tornado Watches in Arkansas, 2022Every tornado watch in 2022
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.