Alert archive / Arkansas / Tornado Watches in 2022

Tornado Watch 35

March 7, 20224 states

The Storm Prediction Center issued this tornado watch at Mar 7, 2022, 1:07 AM CST for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Mar 7, 2022, 1:07 AM CST (07:07 UTC)
Expired
Mar 7, 2022, 7:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt
All 55 counties

Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Cleveland County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Desha County, AR, Drew County, AR, Jackson County, AR, Jefferson County, AR, Lee County, AR, Lincoln County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, St. Francis County, AR, White County, AR, Woodruff County, AR, Dunklin County, MO, Pemiscot County, MO, Benton County, MS, Bolivar County, MS, Coahoma County, MS, DeSoto County, MS, Marshall County, MS, Panola County, MS, Quitman County, MS, Sunflower County, MS, Tate County, MS, Tunica County, MS, Washington County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Little Rock radar (KLZK), 112 km from the middle of the area, began a volume at 07:06 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
50%
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

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

IssuedProductOfficeCountiesLasted
Mar 7, 1:12 AM CSTSevere Thunderstorm WarningMEGDunklin33 min
Mar 7, 1:23 AM CSTTornado WarningLZKArkansas, Cleveland, Jefferson, Lincoln52 min
Mar 7, 1:23 AM CSTTornado WarningLZKBradley, Calhoun, Cleveland37 min
Mar 7, 1:28 AM CSTSevere Thunderstorm WarningMEGCraighead, Greene, Mississippi32 min
Mar 7, 1:42 AM CSTTornado WarningLZKBradley, Cleveland, Drew, Lincoln33 min
Mar 7, 1:46 AM CSTTornado WarningMEGDunklin, Pemiscot44 min
Mar 7, 1:54 AM CSTTornado WarningLZKArkansas, Jefferson, Lincoln, Monroe51 min
Mar 7, 1:56 AM CSTSevere Thunderstorm WarningMEGDunklin, Pemiscot49 min
Mar 7, 2:09 AM CSTTornado WarningLZKDesha, Lincoln36 min
Mar 7, 2:34 AM CSTTornado WarningLZKArkansas, Desha, Lincoln30 min
Mar 7, 2:38 AM CSTTornado WarningMEGPhillips40 min
Mar 7, 3:09 AM CSTSevere Thunderstorm WarningMEGLee, Phillips38 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

Little Rock, AR (KLZK), launched 00:00Z, 7.1 hours before the alert went out and 110 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, Little Rock, AR at 00:00Z on 2022-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 449 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, Little Rock, AR at 00:00Z on 2022-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 249 square meters per square second.1939587897Sfc1 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
449 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1244 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
249 m²/s²
0-3 km storm-relative helicity
381 m²/s²
Significant tornado parameter
0.7
Supercell composite
16.6

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 6, 7:03 PM CSTMesoscale DiscussionSPCBaxter, Boone, Carroll, Clay, Cleburne, Conway and 25 more57 min
Mar 6, 7:58 PM CSTTornado WatchSPCBaxter, Boone, Clay, Cleburne, Conway, Craighead and 22 more6 hr
Mar 6, 8:46 PM CSTMesoscale DiscussionSPCBaxter, Fulton, Izard, Johnson, Logan, Marion and 2 more89 min
Mar 6, 10:48 PM CSTMesoscale DiscussionSPCBaxter, Clay, Cleburne, Conway, Craighead, Faulkner and 22 more117 min
Mar 7, 12:44 AM CSTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 18 more91 min
Mar 7, 2:34 AM CSTMesoscale DiscussionSPCArkansas, Phillips86 min
Mar 7, 1:31 AM CSTMesoscale DiscussionSPCMississippi, New Madrid, Scott89 min
Mar 7, 1:52 AM CSTTornado WatchSPCMississippi5 hr
Mar 7, 4:05 AM CSTMesoscale DiscussionSPCMontgomery, Stewart85 min
Mar 7, 1:20 PM CSTMesoscale DiscussionSPCBlount, Cocke, Greene, Hamblen, Jefferson, Monroe and 4 more2 hr

Nearby

Tornado Watches in Arkansas, 2022Tornado Watches in Tennessee, 2022Tornado Watches in Mississippi, 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.