Alert archive / Mississippi / Tornado Watches in 2010

Tornado Watch 91

April 24, 20104 states

The Storm Prediction Center issued this tornado watch at Apr 24, 2010, 6:00 AM CDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 24, 2010, 6:00 AM CDT (11:00 UTC)
Expired
Apr 24, 2010, 11:34 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Particularly dangerous situation
Yes
Largest hail expected
3 in
Strongest gust expected
60 kt
All 112 counties

Ashley County, AR, Chicot County, AR, Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lawrence County, AR, Lee County, AR, Mississippi County, AR, Phillips County, AR, Poinsett County, AR, Randolph County, AR, St. Francis County, AR, Catahoula Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll 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, Clarke County, MS, Clay County, MS, Coahoma County, MS, Copiah County, MS, Covington County, MS, DeSoto County, MS, Forrest County, MS, Franklin County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Itawamba County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lafayette County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lee County, MS, Leflore County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Marion 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, 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 Jackson/Brandon,MS radar (KDGX), 173 km from the middle of the area, began a volume at 11:03 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
80%
One or more EF2 to EF5 tornadoes
50%
Ten or more severe wind reports
70%
One or more gusts of 65 knots or more
60%
Ten or more severe hail reports
70%
One or more hailstones of 2 inches or more
60%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 24, 6:12 AM CDTSevere Thunderstorm WarningJANAshley, Chicot63 min
Apr 24, 6:16 AM CDTSevere Thunderstorm WarningJANCovington, Forrest, Jefferson Davis, Lamar44 min
Apr 24, 6:24 AM CDTSevere Thunderstorm WarningMEGCalhoun, Chickasaw, Lafayette, Panola, Pontotoc, Tallahatchie and 1 more51 min
Apr 24, 6:51 AM CDTSevere Thunderstorm WarningJANBolivar, Sunflower39 min
Apr 24, 6:59 AM CDTSevere Thunderstorm WarningJANCovington, Jones33 min
Apr 24, 6:59 AM CDTSevere Thunderstorm WarningMEGCoahoma, Quitman, Tallahatchie, Tunica46 min
Apr 24, 7:06 AM CDTTornado WarningJANAshley54 min
Apr 24, 7:13 AM CDTSevere Thunderstorm WarningJANCopiah, Franklin, Lawrence, Lincoln47 min
Apr 24, 7:16 AM CDTFlash Flood WarningMEGPhillips3 hr
Apr 24, 7:24 AM CDTSevere Thunderstorm WarningMEGLee, Pontotoc, Union36 min
Apr 24, 7:30 AM CDTTornado WarningMEGCoahoma, Panola, Quitman, Tallahatchie45 min
Apr 24, 7:40 AM CDTSevere Thunderstorm WarningMEGClay, Craighead, Greene, Lawrence, Randolph50 min
Apr 24, 7:42 AM CDTTornado WarningJANBolivar63 min
Apr 24, 7:43 AM CDTSevere Thunderstorm WarningMEGCoahoma, DeSoto, Marshall, Panola, Quitman, Tate and 1 more47 min
Apr 24, 7:49 AM CDTSevere Thunderstorm WarningMEGAlcorn, Lee, Prentiss, Tippah, Union41 min
Apr 24, 7:56 AM CDTSevere Thunderstorm WarningJANCopiah, Jefferson Davis, Lawrence, Rankin, Simpson, Smith64 min
Apr 24, 8:02 AM CDTSevere Thunderstorm WarningMEGDeSoto, Marshall43 min
Apr 24, 8:05 AM CDTSevere Thunderstorm WarningMEGBenton, Marshall55 min
Apr 24, 8:07 AM CDTTornado WarningJANCovington, Jefferson Davis, Lawrence, Simpson, Smith68 min
Apr 24, 8:10 AM CDTSevere Thunderstorm WarningMEGBenton, Lafayette, Marshall, Panola, Quitman, Tallahatchie and 1 more50 min
Apr 24, 8:15 AM CDTSevere Thunderstorm WarningMEGPhillips45 min
Apr 24, 8:18 AM CDTSevere Thunderstorm WarningMEGAlcorn, Itawamba, Prentiss, Tishomingo42 min
Apr 24, 8:23 AM CDTTornado WarningMEGLafayette, Marshall, Panola, Tate15 min
Apr 24, 8:28 AM CDTSevere Thunderstorm WarningMEGDeSoto, Panola, Tate17 min
Apr 24, 8:33 AM CDTFlash Flood WarningMEGCrittenden, Lee94 min
Apr 24, 8:36 AM CDTSevere Thunderstorm WarningMEGCrockett, Fayette, Haywood, Lauderdale, Shelby, Tipton39 min
Apr 24, 8:38 AM CDTFlash Flood WarningJANChicot3 hr
Apr 24, 8:58 AM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Tippah47 min
Apr 24, 8:58 AM CDTSevere Thunderstorm WarningMEGCoahoma, Panola, Quitman, Tunica47 min
Apr 24, 8:59 AM CDTTornado WarningJANClarke, Jasper, Lauderdale, Newton, Scott, Smith61 min
Apr 24, 9:20 AM CDTFlash Flood WarningMEGAlcorn, Benton, Lafayette, Marshall, Panola, Tippah and 1 more2 hr
Apr 24, 9:31 AM CDTSevere Thunderstorm WarningMEGDeSoto, Panola, Tate23 min
Apr 24, 9:38 AM CDTSevere Thunderstorm WarningJANCovington, Forrest, Jefferson Davis, Jones, Lamar, Marion52 min
Apr 24, 9:40 AM CDTSevere Thunderstorm WarningMEGChester, Decatur, Hardeman, Hardin, Henderson, McNairy65 min
Apr 24, 9:41 AM CDTSevere Thunderstorm WarningJANAshley34 min
Apr 24, 9:44 AM CDTSevere Thunderstorm WarningMEGAlcorn, Benton, Tippah, Tishomingo61 min
Apr 24, 9:47 AM CDTSevere Thunderstorm WarningJANForrest, Lamar58 min
Apr 24, 9:49 AM CDTSevere Thunderstorm WarningJANClarke, Lauderdale41 min
Apr 24, 9:54 AM CDTTornado WarningMEGBenton, Tippah, Union51 min
Apr 24, 9:55 AM CDTTornado WarningJANLauderdale35 min
Apr 24, 10:08 AM CDTTornado WarningJANJones23 min
Apr 24, 10:09 AM CDTSevere Thunderstorm WarningJANFranklin, Madison, Richland, Tensas51 min
Apr 24, 10:12 AM CDTTornado WarningJANForrest28 min
Apr 24, 10:19 AM CDTSevere Thunderstorm WarningJANMorehouse, Richland, West Carroll56 min
Apr 24, 10:19 AM CDTTornado WarningMEGAlcorn, Tippah41 min
Apr 24, 10:22 AM CDTFlash Flood WarningJANJones113 min
Apr 24, 10:44 AM CDTSevere Thunderstorm WarningMEGAlcorn, Tishomingo61 min
Apr 24, 10:46 AM CDTTornado WarningMEGCrittenden, Cross, St. Francis44 min
Apr 24, 10:46 AM CDTFlash Flood WarningMEGAlcorn, Lee, Prentiss, Tippah, Tishomingo, Union108 min
Apr 24, 10:48 AM CDTSevere Thunderstorm WarningJANEast Carroll, West Carroll42 min
Apr 24, 10:51 AM CDTTornado WarningMEGAlcorn, Tishomingo39 min
Apr 24, 10:57 AM CDTTornado WarningJANEast Carroll, Franklin, Madison48 min
Apr 24, 10:58 AM CDTTornado WarningMEGBenton, Lafayette, Pontotoc, Tippah, Union47 min
Apr 24, 10:59 AM CDTTornado WarningJANClarke46 min
Apr 24, 11:01 AM CDTSevere Thunderstorm WarningMEGCross, Lee, Poinsett, St. Francis44 min
Apr 24, 11:08 AM CDTTornado WarningMEGPontotoc, Prentiss, Tippah, Union52 min
Apr 24, 11:11 AM CDTTornado WarningMEGAlcorn, Tishomingo49 min
Apr 24, 11:29 AM CDTFlash Flood WarningMEGDecatur, Hardin, McNairy2 hr
Apr 24, 11:32 AM CDTTornado WarningMEGAlcorn, Prentiss, Tippah, Tishomingo58 min
Apr 24, 11:34 AM CDTSevere Thunderstorm WarningJANHumphreys, Sharkey, Sunflower, Washington56 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, 11.0 hours before the alert went out and 119 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 2010-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 325 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 2010-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 239 square meters per square second.19395878Sfc1 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
325 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
463 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
239 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 23, 11:40 PM CDTMesoscale DiscussionSPCArkansas, Bradley, Calhoun, Clay, Cleveland, Craighead and 25 more65 min
Apr 24, 1:20 AM CDTMesoscale DiscussionSPCColumbia, Lafayette25 min
Apr 24, 1:50 AM CDTTornado WatchSPCColumbia, Hempstead, Howard, Lafayette, Little River, Miller and 3 more8 hr
Apr 24, 2:44 AM CDTMesoscale DiscussionSPCArkansas, Cleburne, Cleveland, Craighead, Crittenden, Cross and 24 more91 min
Apr 24, 3:02 AM CDTTornado WatchSPCArkansas, Bradley, Calhoun, Clark, Cleveland, Dallas and 14 more8 hr
Apr 24, 5:01 AM CDTMesoscale DiscussionSPCAshley, Bradley, Calhoun, Chicot, Columbia, Drew and 2 more89 min
Apr 24, 7:25 AM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Cleveland, Drew, Jefferson and 3 more95 min
Apr 24, 9:31 AM CDTMesoscale DiscussionSPCArkansas, Ashley, Chicot, Cleveland, Crittenden, Cross and 12 more59 min
Apr 24, 11:08 AM CDTMesoscale DiscussionSPCArkansas, Baxter, Clay, Cleburne, Conway, Craighead and 24 more67 min
Apr 24, 11:31 AM CDTTornado Watch PDSSPCClay, Craighead, Crittenden, Cross, Greene, Lawrence and 6 more8 hr
Apr 24, 1:52 PM CDTMesoscale DiscussionSPCBaxter, Boone, Marion53 min
Apr 24, 2:01 PM CDTMesoscale DiscussionSPCClay, Craighead, Crittenden, Greene, Mississippi, Poinsett89 min
Apr 24, 6:15 AM CDTTornado WatchSPCAcadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 32 more7 hr
Apr 24, 10:28 AM CDTMesoscale DiscussionSPCAvoyelles, Catahoula, Concordia, East Baton Rouge, East Feliciana, Franklin and 10 more92 min
Apr 24, 12:47 PM CDTTornado WatchSPCAscension, Jefferson, Lafourche, Livingston, Orleans, Plaquemines and 8 more7 hr
Apr 23, 7:39 PM CDTMesoscale DiscussionSPCAttala, Bolivar, Carroll, Choctaw, Clarke, Clay and 35 more36 min
Apr 23, 10:32 PM CDTMesoscale DiscussionSPCAttala, Choctaw, Clarke, Clay, Greene, Jasper and 16 more58 min
Apr 24, 2:07 AM CDTMesoscale DiscussionSPCGeorge, Greene53 min
Apr 24, 5:48 PM CDTMesoscale DiscussionSPCClarke, Clay, Itawamba, Jasper, Kemper, Lauderdale and 11 more57 min
Apr 24, 8:01 AM CDTTornado Watch PDSSPCBedford, Benton, Cheatham, Coffee, Davidson, Dickson and 17 more5 hr
Apr 24, 11:40 AM CDTMesoscale DiscussionSPCBedford, Bledsoe, Bradley, Cannon, Cheatham, Clay and 32 more95 min
Apr 24, 1:17 PM CDTTornado Watch PDSSPCBedford, Benton, Cannon, Cheatham, Clay, Coffee and 36 more8 hr
Apr 24, 6:15 PM CDTTornado WatchSPCAnderson, Bedford, Bledsoe, Blount, Bradley, Campbell and 53 more8 hr

Nearby

Tornado Watches in Mississippi, 2010Tornado Watches in Tennessee, 2010Tornado Watches in Arkansas, 2010Every tornado watch in 2010

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.