Alert archive / Arkansas / Tornado Watches in 2023
Tornado Watch 24
The Storm Prediction Center issued this tornado watch at Jan 18, 2023, 9:02 AM CST for 31 counties in Arkansas; 16 parishes in Louisiana; 18 counties in Texas. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 18, 2023, 9:02 AM CST (15:02 UTC)
- Expired
- Jan 18, 2023, 6:00 PM CST
- In force
- 9 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 65 kt
All 65 counties
Arkansas County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Jefferson County, AR, Lafayette County, AR, Lincoln County, AR, Lonoke County, AR, Miller County, AR, Monroe County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Union County, AR, White County, AR, Woodruff County, AR, Beauregard Parish, LA, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Vernon Parish, LA, Webster Parish, LA, Winn Parish, LA, Angelina County, TX, Cherokee County, TX, Harrison County, TX, Houston County, TX, Jasper County, TX, Marion 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 Shreveport radar (KSHV), 127 km from the middle of the area, began a volume at 15:01 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
- 50%
- One or more EF2 to EF5 tornadoes
- 30%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 18, 9:38 AM CST | Tornado Warning | SHV | Lafayette, Miller | 28 min |
| Jan 18, 9:40 AM CST | Severe Thunderstorm Warning | SHV | Bossier, Caddo | 50 min |
| Jan 18, 9:47 AM CST | Tornado Warning | LZK | Cleveland, Jefferson, Lincoln | 27 min |
| Jan 18, 10:12 AM CST | Tornado Warning | SHV | Nacogdoches, Rusk | 48 min |
| Jan 18, 10:22 AM CST | Severe Thunderstorm Warning | SHV | Columbia, Lafayette, Nevada, Union | 38 min |
| Jan 18, 10:24 AM CST | Severe Thunderstorm Warning | SHV | Bossier, Caddo | 51 min |
| Jan 18, 10:46 AM CST | Tornado Warning | SHV | Panola, Rusk, Shelby | 44 min |
| Jan 18, 11:04 AM CST | Severe Thunderstorm Warning | SHV | Columbia, Nevada, Union | 56 min |
| Jan 18, 11:06 AM CST | Severe Thunderstorm Warning | LZK | Ouachita | 39 min |
| Jan 18, 11:08 AM CST | Tornado Warning | LZK | Ouachita | 26 min |
| Jan 18, 11:20 AM CST | Severe Thunderstorm Warning | LZK | Calhoun, Ouachita | 25 min |
| Jan 18, 11:31 AM CST | Tornado Warning | SHV | De Soto | 44 min |
| Jan 18, 11:39 AM CST | Severe Thunderstorm Warning | LZK | Calhoun, Cleveland, Dallas, Ouachita | 27 min |
| Jan 18, 11:45 AM CST | Severe Thunderstorm Warning | LZK | Calhoun, Dallas, Ouachita | 45 min |
| Jan 18, 11:49 AM CST | Severe Thunderstorm Warning | SHV | Columbia, Union | 41 min |
| Jan 18, 12:01 PM CST | Tornado Warning | LZK | Calhoun | 17 min |
| Jan 18, 12:20 PM CST | Tornado Warning | SHV | Bienville, Bossier, Caddo, De Soto, Webster | 25 min |
| Jan 18, 12:23 PM CST | Tornado Warning | SHV | Columbia, Union | 52 min |
| Jan 18, 12:42 PM CST | Tornado Warning | SHV | Bienville, Bossier, Webster | 33 min |
| Jan 18, 12:43 PM CST | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Caddo, De Soto, Webster | 22 min |
| Jan 18, 3:00 PM CST | Severe Thunderstorm Warning | LZK | Desha, Drew | 45 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 12:00Z, 3.0 hours before the alert went out and 118 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
- 471 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 605 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 291 m²/s²
- 0-3 km storm-relative helicity
- 275 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 3.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 18, 7:28 AM CST | Mesoscale Discussion | SPC | Clark, Columbia, Hempstead, Howard, Lafayette, Little River and 5 more | 2 hr |
| Jan 18, 11:48 AM CST | Mesoscale Discussion | SPC | Bradley, Calhoun, Cleveland, Columbia, Dallas, Grant and 3 more | 87 min |
| Jan 18, 12:30 PM CST | Mesoscale Discussion | SPC | Ashley, Chicot, Crittenden, Cross, Lee, Phillips and 1 more | 90 min |
| Jan 18, 2:34 PM CST | Tornado Watch | SPC | Ashley, Chicot, Crittenden, Lee, Phillips, St. Francis | 7 hr |
| Jan 18, 3:31 PM CST | Mesoscale Discussion | SPC | Ashley, Chicot, Desha | 89 min |
| Jan 18, 5:47 PM CST | Mesoscale Discussion | SPC | Catahoula, Concordia, East Carroll, Franklin, Madison, Tensas | 118 min |
Nearby
Tornado Watches in Arkansas, 2023Tornado Watches in Texas, 2023Tornado Watches in Louisiana, 2023Every tornado watch in 2023
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.