Alert archive / Arkansas / Tornado Watches in 2019

Tornado Watch 23

March 14, 20194 states

The Storm Prediction Center issued this tornado watch at Mar 14, 2019, 5:28 AM CDT for 4 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Mar 14, 2019, 5:28 AM CDT (10:28 UTC)
Expired
Mar 14, 2019, 12:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 72 counties

Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Clay County, AR, Cleveland County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Grant County, AR, Greene County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lee County, AR, Lincoln County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Ouachita County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Randolph County, AR, St. Francis County, AR, Woodruff County, AR, Dunklin County, MO, Pemiscot County, MO, Alcorn County, MS, Benton County, MS, Bolivar County, MS, Calhoun County, MS, Coahoma County, MS, DeSoto County, MS, Lafayette County, MS, Marshall County, MS, Panola County, MS, Pontotoc County, MS, Quitman County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tunica County, MS, Union County, MS, Washington County, MS, Yalobusha County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 8 km from the middle of the area, began a volume at 10:28 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
10%
Ten or more severe wind reports
20%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
50%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Mar 14, 5:53 AM CDTSevere Thunderstorm WarningMEGCraighead, Poinsett16 min
Mar 14, 5:55 AM CDTSevere Thunderstorm WarningLZKLonoke, Monroe, Prairie, Woodruff50 min
Mar 14, 6:04 AM CDTTornado WarningLZKPrairie, White, Woodruff26 min
Mar 14, 6:10 AM CDTSevere Thunderstorm WarningLZKBradley, Calhoun, Cleveland, Drew, Lincoln35 min
Mar 14, 6:11 AM CDTSevere Thunderstorm WarningJANAshley46 min
Mar 14, 6:18 AM CDTSevere Thunderstorm WarningMEGCross, Poinsett42 min
Mar 14, 6:21 AM CDTSevere Thunderstorm WarningMEGClay, Greene, Mississippi39 min
Mar 14, 6:38 AM CDTSevere Thunderstorm WarningMEGLee, St. Francis36 min
Mar 14, 6:45 AM CDTSevere Thunderstorm WarningMEGCraighead, Mississippi45 min
Mar 14, 6:51 AM CDTFlash Flood WarningMEGCraighead, Cross, Poinsett3 hr
Mar 14, 7:02 AM CDTSevere Thunderstorm WarningMEGCrittenden, Cross, Mississippi, Poinsett43 min
Mar 14, 7:57 AM CDTSevere Thunderstorm WarningMEGMississippi48 min
Mar 14, 12:00 PM CDTTornado WarningMEGAlcorn, Tishomingo45 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 (KBYH), launched 00:00Z, 10.5 hours before the alert went out and 51 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 2019-03-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2019-03-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 252 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
850 m above ground
0-6 km bulk shear
98 kt
0-1 km storm-relative helicity
252 m²/s²
0-3 km storm-relative helicity
498 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 13, 11:30 PM CDTMesoscale DiscussionSPCHempstead, Howard, Little River, Miller, Pike, Sevier3 hr
Mar 14, 1:59 AM CDTSevere Thunderstorm WatchSPCColumbia, Hempstead, Howard, Lafayette, Little River, Miller and 3 more5 hr
Mar 14, 4:07 AM CDTMesoscale DiscussionSPCColumbia, Hempstead, Lafayette, Miller, Nevada83 min
Mar 14, 4:47 AM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 19 more88 min
Mar 14, 7:14 AM CDTMesoscale DiscussionSPCArkansas, Chicot, Clay, Craighead, Crittenden, Cross and 12 more2 hr
Mar 14, 10:32 AM CDTMesoscale DiscussionSPCAlcorn, Benton, Calhoun, Chickasaw, Clay, Grenada and 15 more58 min
Mar 14, 11:47 AM CDTMesoscale DiscussionSPCAlcorn, Attala, Benton, Calhoun, Chickasaw, Choctaw and 23 more88 min
Mar 14, 12:11 PM CDTTornado WatchSPCAlcorn, Attala, Calhoun, Chickasaw, Choctaw, Clay and 15 more7 hr
Mar 14, 1:01 PM CDTMesoscale DiscussionSPCAttala, Choctaw, Clay, Lowndes, Monroe, Noxubee and 2 more59 min
Mar 14, 2:10 PM CDTMesoscale DiscussionSPCClarke, Copiah, Covington, Forrest, Jasper, Jefferson Davis and 14 more95 min
Mar 14, 2:58 PM CDTMesoscale DiscussionSPCChickasaw, Choctaw, Clay, Itawamba, Kemper, Leake and 8 more92 min
Mar 14, 2:37 AM CDTMesoscale DiscussionSPCHenry, Obion, Stewart, Weakley83 min

Nearby

Tornado Watches in Arkansas, 2019Tornado Watches in Tennessee, 2019Tornado Watches in Mississippi, 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.