Alert archive / Mississippi / Tornado Watches in 2019

Tornado Watch 5

February 23, 20194 states

The Storm Prediction Center issued this tornado watch at Feb 23, 2019, 12:26 PM CST for 4 states. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Feb 23, 2019, 12:26 PM CST (18:26 UTC)
Expired
Feb 23, 2019, 8:00 PM CST
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
65 kt
All 109 counties

Arkansas County, AR, Ashley County, AR, Bradley County, AR, Chicot County, AR, Cleveland County, AR, Crittenden County, AR, Desha County, AR, Drew County, AR, Lee County, AR, Lincoln County, AR, Phillips County, AR, St. Francis County, AR, Avoyelles Parish, LA, Caldwell Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Richland Parish, LA, Tensas Parish, LA, Union Parish, LA, Vernon Parish, LA, West Carroll Parish, LA, Winn Parish, LA, Adams County, MS, Alcorn County, MS, Attala County, MS, Benton County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Claiborne County, MS, Clay County, MS, Coahoma County, MS, Copiah County, MS, DeSoto County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Itawamba County, MS, Jefferson County, MS, Kemper County, MS, Lafayette County, MS, Lauderdale County, MS, Leake County, MS, Lee County, MS, Leflore County, MS, Lowndes County, MS, Madison County, MS, Marshall County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Warren County, MS, Washington County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Yazoo County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Jackson/Brandon,MS radar (KDGX), 125 km from the middle of the area, began a volume at 18:26 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
90%
One or more EF2 to EF5 tornadoes
70%
Ten or more severe wind reports
70%
One or more gusts of 65 knots or more
40%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
20%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Feb 23, 12:28 PM CSTSevere Thunderstorm WarningMEGCrittenden, Cross, Mississippi, St. Francis32 min
Feb 23, 12:41 PM CSTFlash Flood WarningMEGCrittenden, Lee, St. Francis3 hr
Feb 23, 1:27 PM CSTFlash Flood WarningMEGLafayette6 hr
Feb 23, 2:13 PM CSTSevere Thunderstorm WarningJANAshley, Chicot62 min
Feb 23, 2:14 PM CSTSevere Thunderstorm WarningJANMadison, Yazoo46 min
Feb 23, 2:16 PM CSTSevere Thunderstorm WarningMEGLee, Phillips44 min
Feb 23, 2:16 PM CSTFlash Flood WarningMEGCarroll, Crockett, Dyer, Fayette, Gibson, Haywood and 6 more3 hr
Feb 23, 2:22 PM CSTTornado WarningJANMadison, Yazoo38 min
Feb 23, 2:34 PM CSTSevere Thunderstorm WarningJANMadison41 min
Feb 23, 2:34 PM CSTFlash Flood WarningMEGBenton, Carroll, Chester, Hardeman, Henderson, Henry and 1 more3 hr
Feb 23, 2:41 PM CSTSevere Thunderstorm WarningJANConcordia, Tensas64 min
Feb 23, 2:53 PM CSTSevere Thunderstorm WarningJANAttala, Holmes, Leake, Madison, Yazoo52 min
Feb 23, 2:54 PM CSTSevere Thunderstorm WarningMEGLee, Phillips, St. Francis51 min
Feb 23, 2:59 PM CSTSevere Thunderstorm WarningJANYazoo30 min
Feb 23, 3:30 PM CSTSevere Thunderstorm WarningJANClaiborne45 min
Feb 23, 3:41 PM CSTSevere Thunderstorm WarningJANAttala, Choctaw, Winston49 min
Feb 23, 3:50 PM CSTSevere Thunderstorm WarningJANLeake, Neshoba55 min
Feb 23, 3:50 PM CSTSevere Thunderstorm WarningJANMadison, Rankin, Scott25 min
Feb 23, 3:52 PM CSTSevere Thunderstorm WarningMEGCrittenden38 min
Feb 23, 3:54 PM CSTSevere Thunderstorm WarningMEGAlcorn, Lee, Prentiss, Tippah, Union36 min
Feb 23, 3:55 PM CSTSevere Thunderstorm WarningJANClay, Oktibbeha, Webster50 min
Feb 23, 4:01 PM CSTSevere Thunderstorm WarningJANHinds17 min
Feb 23, 4:04 PM CSTTornado WarningMEGPrentiss, Tippah, Union26 min
Feb 23, 4:08 PM CSTSevere Thunderstorm WarningJANOktibbeha67 min
Feb 23, 4:13 PM CSTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe47 min
Feb 23, 4:20 PM CSTTornado WarningMEGAlcorn, Prentiss, Tishomingo40 min
Feb 23, 4:22 PM CSTTornado WarningMEGItawamba, Monroe38 min
Feb 23, 4:24 PM CSTTornado WarningJANKemper, Neshoba66 min
Feb 23, 4:49 PM CSTSevere Thunderstorm WarningJANLowndes41 min
Feb 23, 4:50 PM CSTSevere Thunderstorm WarningMEGItawamba10 min
Feb 23, 4:53 PM CSTTornado WarningMEGTishomingo24 min
Feb 23, 4:56 PM CSTTornado WarningJANLowndes40 min
Feb 23, 5:02 PM CSTTornado WarningJANNoxubee43 min
Feb 23, 5:14 PM CSTFlash Flood WarningMEGCrockett, Fayette, Haywood, Tipton3 hr
Feb 23, 5:27 PM CSTFlash Flood WarningMEGChester, Hardeman, Madison3 hr
Feb 23, 5:38 PM CSTSevere Thunderstorm WarningMEGChester, Hardeman, Madison52 min
Feb 23, 5:41 PM CSTTornado WarningMEGChester, Hardeman, Madison34 min
Feb 23, 6:02 PM CSTTornado WarningMEGChester, Henderson, McNairy, Madison15 min
Feb 23, 6:16 PM CSTSevere Thunderstorm WarningMEGBenton, Carroll, Chester, Decatur, Henderson23 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

Jackson, MS (KJAN), launched 12:00Z, 6.4 hours before the alert went out and 115 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, Jackson, MS at 12:00Z on 2019-02-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 735 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, Jackson, MS at 12:00Z on 2019-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 278 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
735 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
553 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
278 m²/s²
0-3 km storm-relative helicity
383 m²/s²
Significant tornado parameter
1.2
Supercell composite
6.4

Open this sounding in Storm Lab

The text

As transmitted.

860 
WWUS20 KWNS 231823
SEL5  
SPC WW 231823
ARZ000-LAZ000-MSZ000-TNZ000-240200-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 5
NWS Storm Prediction Center Norman OK
1225 PM CST Sat Feb 23 2019

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Eastern Arkansas
  Northern Louisiana
  Mississippi
  Western Tennessee

* Effective this Saturday afternoon and evening from 1225 PM
  until 800 PM CST.

* Primary threats include...
  Several tornadoes and a couple intense tornadoes likely
  Scattered damaging winds likely with isolated significant gusts
    to 75 mph possible
  Scattered large hail events to 1.5 inches in diameter possible

SUMMARY...Scattered severe storms are expected to develop mainly
during the mid to late afternoon and early evening across parts of
the Lower Mississippi Valley and Mid-South. The greatest tornado
risk should exist across northern and central Mississippi into far
southwest Tennessee between about 3 to 7 PM.

The tornado watch area is approximately along and 85 statute miles
east and west of a line from 35 miles southwest of Natchez MS to 15
miles northwest of Jackson TN. For a complete depiction of the watch
see the associated watch outline update (WOUS64 KWNS WOU5).

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 1.5 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 21045.

...Grams

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 23, 6:57 AM CSTMesoscale DiscussionSPCBradley, Calhoun, Columbia, Lafayette, Miller, Nevada and 2 more2 hr
Feb 23, 10:52 AM CSTMesoscale DiscussionSPCAshley, Bradley, Chicot, Desha, Drew, Lincoln and 1 more113 min
Feb 23, 2:35 PM CSTMesoscale DiscussionSPCAttala, Choctaw, Clay, Holmes, Leake, Madison and 5 more55 min
Feb 23, 5:01 PM CSTMesoscale DiscussionSPCKemper, Lowndes, Noxubee119 min
Feb 23, 3:01 PM CSTTornado WatchSPCBedford, Cheatham, Davidson, Dickson, Giles, Hickman and 14 more6 hr

Nearby

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