Alert archive / Arkansas / Tornado Watches in 2024

Tornado Watch 9

January 11, 202440 counties in Arkansas; 4 counties in Oklahoma; 30 counties in Texas

The Storm Prediction Center issued this tornado watch at Jan 11, 2024, 9:56 PM CST for 40 counties in Arkansas; 4 counties in Oklahoma; 30 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jan 11, 2024, 9:56 PM CST (03:56 UTC)
Expired
Jan 12, 2024, 4:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 74 counties

Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Columbia County, AR, Conway County, AR, Dallas County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Jefferson County, AR, Johnson County, AR, Lafayette County, AR, Little River County, AR, Logan 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, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Sebastian County, AR, Sevier County, AR, Union County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Choctaw County, OK, LeFlore County, OK, McCurtain County, OK, Pushmataha County, OK, Anderson County, TX, Bowie County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Delta County, TX, Fannin County, TX, Franklin County, TX, Freestone County, TX, Gregg County, TX, Harrison County, TX, Henderson County, TX, Hopkins County, TX, Hunt County, TX, Kaufman County, TX, Lamar County, TX, Limestone County, TX, Marion County, TX, Morris County, TX, Navarro County, TX, Panola County, TX, Rains County, TX, Red River County, TX, Rockwall County, TX, Rusk County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Wood County, TX

The radar

The Shreveport radar (KSHV), 165 km from the middle of the area, began a volume at 03:57 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
40%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
40%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

26 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jan 11, 10:15 PM CSTSevere Thunderstorm WarningLZKGarland, Hot Spring, Montgomery45 min
Jan 11, 10:28 PM CSTSevere Thunderstorm WarningLZKConway, Faulkner, Perry, Pulaski47 min
Jan 11, 10:37 PM CSTTornado WarningLZKFaulkner, Perry23 min
Jan 11, 10:46 PM CSTSevere Thunderstorm WarningLZKConway, Faulkner, Perry44 min
Jan 11, 10:52 PM CSTSevere Thunderstorm WarningLZKFaulkner, Garland, Perry, Pulaski, Saline38 min
Jan 11, 11:12 PM CSTSevere Thunderstorm WarningLZKConway, Faulkner, Lonoke, Perry, Pulaski, White29 min
Jan 11, 11:17 PM CSTSevere Thunderstorm WarningLZKCleburne, Faulkner, Independence, Jackson, Van Buren, White43 min
Jan 11, 11:27 PM CSTSevere Thunderstorm WarningLZKFaulkner, Lonoke, Pulaski, Saline48 min
Jan 11, 11:39 PM CSTSevere Thunderstorm WarningLZKFaulkner, Lonoke, Pulaski, White, Woodruff51 min
Jan 11, 11:43 PM CSTSevere Thunderstorm WarningLZKGarland, Hot Spring, Pulaski, Saline47 min
Jan 11, 11:52 PM CSTTornado WarningLZKGarland, Grant, Hot Spring, Pulaski, Saline23 min
Jan 11, 11:59 PM CSTSevere Thunderstorm WarningLZKIndependence, Jackson, Lawrence, White, Woodruff46 min
Jan 12, 12:11 AM CSTSevere Thunderstorm WarningLZKLonoke, Prairie, Pulaski, White, Woodruff19 min
Jan 12, 12:14 AM CSTTornado WarningLZKLonoke, Pulaski, Saline31 min
Jan 12, 12:23 AM CSTSevere Thunderstorm WarningLZKJackson, Lonoke, Prairie, White, Woodruff52 min
Jan 12, 12:43 AM CSTSevere Thunderstorm WarningLZKLonoke, Prairie, Pulaski, White35 min
Jan 12, 12:44 AM CSTSevere Thunderstorm WarningLZKJackson, White, Woodruff31 min
Jan 12, 1:12 AM CSTSevere Thunderstorm WarningLZKJackson, White, Woodruff18 min
Jan 12, 1:36 AM CSTSevere Thunderstorm WarningSHVHempstead, Howard, Little River, Sevier54 min
Jan 12, 1:55 AM CSTSevere Thunderstorm WarningLZKWhite17 min
Jan 12, 1:56 AM CSTSevere Thunderstorm WarningLZKConway, Faulkner, Perry, Van Buren15 min
Jan 12, 1:58 AM CSTSevere Thunderstorm WarningLZKConway, Perry, Pope, Yell33 min
Jan 12, 2:13 AM CSTSevere Thunderstorm WarningLZKLogan, Montgomery, Scott, Yell9 min
Jan 12, 2:15 AM CSTSevere Thunderstorm WarningSHVSmith, Upshur, Wood60 min
Jan 12, 3:45 AM CSTSevere Thunderstorm WarningLZKGrant, Lonoke, Pulaski, Saline30 min
Jan 12, 3:48 AM CSTFlash Flood WarningLZKCleburne, Faulkner, Independence, White117 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, 3.9 hours before the alert went out and 167 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.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2024-01-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 413 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2024-01-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 289 square meters per square second.1939587897117136156Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
413 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1157 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
289 m²/s²
0-3 km storm-relative helicity
493 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.8

Open this sounding in Storm Lab

The text

As transmitted.

752 
WWUS20 KWNS 120354
SEL9  
SPC WW 120354
ARZ000-LAZ000-OKZ000-TXZ000-121000-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 9
NWS Storm Prediction Center Norman OK
955 PM CST Thu Jan 11 2024

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  parts of western and central Arkansas
  northwestern Louisiana
  southeastern Oklahoma
  northeast Texas

* Effective this Thursday night and Friday morning from 955 PM
  until 400 AM CST.

* Primary threats include...
  A few tornadoes and a couple intense tornadoes possible
  Scattered large hail and isolated very large hail events to 2
    inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible

SUMMARY...Strong/locally severe thunderstorms have developed this
evening across the Arkansas vicinity, with additional storm
development expected over the next couple of hours along the cold
front, across northeastern Texas and spreading across the Arklatex
region overnight.  The strongest storms across this region will be
capable of producing damaging wind gusts and large hail, with a
couple of tornadoes also possible.

The tornado watch area is approximately along and 80 statute miles
north and south of a line from 55 miles north of Corsicana TX to 45
miles east of Hot Springs AR. For a complete depiction of the watch
see the associated watch outline update (WOUS64 KWNS WOU9).

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.

&&

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 400. Mean
storm motion vector 23040.

...Goss

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 11, 8:28 PM CSTMesoscale DiscussionSPCCalhoun, Clark, Cleburne, Cleveland, Columbia, Conway and 38 more2 hr
Jan 11, 11:44 PM CSTMesoscale DiscussionSPCCalhoun, Clark, Columbia, Conway, Dallas, Faulkner and 19 more2 hr
Jan 12, 1:13 AM CSTMesoscale DiscussionSPCClay, Craighead, Crittenden, Cross, Greene, Lee and 3 more2 hr
Jan 12, 2:41 AM CSTMesoscale DiscussionSPCBradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 21 more94 min
Jan 12, 3:33 AM CSTMesoscale DiscussionSPCAshley, Chicot, Desha, Lee, Phillips87 min
Jan 12, 3:57 AM CSTTornado WatchSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 26 more7 hr
Jan 12, 6:14 AM CSTMesoscale DiscussionSPCArkansas, Ashley, Chicot, Crittenden, Cross, Desha and 5 more91 min

Nearby

Tornado Watches in Arkansas, 2024Tornado Watches in Texas, 2024Tornado Watches in Oklahoma, 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.