Alert archive / Arkansas / Tornado Watches in 2007

Tornado Watch 114

April 3, 20074 states

The Storm Prediction Center issued this tornado watch at Apr 3, 2007, 3:12 PM CDT for 4 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Apr 3, 2007, 3:12 PM CDT (20:12 UTC)
Expired
Apr 3, 2007, 10:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
3 in
Strongest gust expected
70 kt
All 76 counties

Baxter County, AR, Boone County, AR, Carroll County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Crawford County, AR, Crittenden County, AR, Cross County, AR, Faulkner County, AR, Franklin County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Johnson County, AR, Lawrence County, AR, Lee County, AR, Logan County, AR, Lonoke County, AR, Madison County, AR, Marion County, AR, Mississippi County, AR, Monroe County, AR, Newton County, AR, Perry County, AR, Poinsett County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Dunklin County, MO, Pemiscot County, MO, Alcorn County, MS, Benton County, MS, DeSoto County, MS, Marshall County, MS, Prentiss County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica 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 Little Rock radar (KLZK), 103 km from the middle of the area, began a volume at 20:11 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
60%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
80%
One or more hailstones of 2 inches or more
60%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 3, 3:13 PM CDTSevere Thunderstorm WarningTSACarroll62 min
Apr 3, 3:53 PM CDTSevere Thunderstorm WarningLZKFulton, Izard67 min
Apr 3, 4:13 PM CDTSevere Thunderstorm WarningTSACarroll36 min
Apr 3, 4:18 PM CDTSevere Thunderstorm WarningLZKBoone42 min
Apr 3, 4:23 PM CDTSevere Thunderstorm WarningMEGClay, Randolph67 min
Apr 3, 4:26 PM CDTSevere Thunderstorm WarningLZKConway49 min
Apr 3, 4:32 PM CDTSevere Thunderstorm WarningLZKSharp43 min
Apr 3, 4:34 PM CDTSevere Thunderstorm WarningLZKSearcy41 min
Apr 3, 4:54 PM CDTSevere Thunderstorm WarningMEGLawrence66 min
Apr 3, 4:55 PM CDTSevere Thunderstorm WarningLZKYell50 min
Apr 3, 4:56 PM CDTSevere Thunderstorm WarningLZKBaxter, Stone49 min
Apr 3, 4:57 PM CDTSevere Thunderstorm WarningLZKIzard48 min
Apr 3, 5:07 PM CDTSevere Thunderstorm WarningLZKSharp38 min
Apr 3, 5:13 PM CDTSevere Thunderstorm WarningMEGDunklin17 min
Apr 3, 5:15 PM CDTSevere Thunderstorm WarningLZKSearcy, Stone60 min
Apr 3, 5:16 PM CDTSevere Thunderstorm WarningLZKConway, Perry44 min
Apr 3, 5:24 PM CDTFlash Flood WarningMEGClay3 hr
Apr 3, 5:25 PM CDTTornado WarningMEGClay50 min
Apr 3, 5:30 PM CDTSevere Thunderstorm WarningMEGRandolph30 min
Apr 3, 5:32 PM CDTSevere Thunderstorm WarningLZKConway, Faulkner58 min
Apr 3, 5:35 PM CDTSevere Thunderstorm WarningMEGGreene55 min
Apr 3, 5:43 PM CDTSevere Thunderstorm WarningLZKFaulkner62 min
Apr 3, 5:45 PM CDTSevere Thunderstorm WarningLZKSharp30 min
Apr 3, 6:00 PM CDTSevere Thunderstorm WarningLZKPerry60 min
Apr 3, 6:00 PM CDTSevere Thunderstorm WarningMEGDunklin45 min
Apr 3, 6:07 PM CDTSevere Thunderstorm WarningLZKCleburne, Independence53 min
Apr 3, 6:15 PM CDTSevere Thunderstorm WarningLZKStone45 min
Apr 3, 6:26 PM CDTSevere Thunderstorm WarningMEGPemiscot34 min
Apr 3, 6:29 PM CDTSevere Thunderstorm WarningMEGGreene31 min
Apr 3, 6:35 PM CDTSevere Thunderstorm WarningMEGCraighead40 min
Apr 3, 6:41 PM CDTSevere Thunderstorm WarningLZKPulaski64 min
Apr 3, 6:41 PM CDTSevere Thunderstorm WarningMEGObion49 min
Apr 3, 6:44 PM CDTSevere Thunderstorm WarningLZKJackson37 min
Apr 3, 6:47 PM CDTSevere Thunderstorm WarningLZKFaulkner43 min
Apr 3, 6:51 PM CDTTornado WarningMEGCraighead24 min
Apr 3, 6:55 PM CDTSevere Thunderstorm WarningLZKWhite65 min
Apr 3, 7:00 PM CDTSevere Thunderstorm WarningLZKIndependence, Jackson60 min
Apr 3, 7:09 PM CDTSevere Thunderstorm WarningMEGMississippi36 min
Apr 3, 7:10 PM CDTSevere Thunderstorm WarningMEGWeakley50 min
Apr 3, 7:14 PM CDTTornado WarningMEGCraighead, Mississippi46 min
Apr 3, 7:18 PM CDTSevere Thunderstorm WarningMEGPoinsett42 min
Apr 3, 7:25 PM CDTFlash Flood WarningLZKPerry, Pulaski2 hr
Apr 3, 7:30 PM CDTFlash Flood WarningLZKIndependence, White2 hr
Apr 3, 7:37 PM CDTSevere Thunderstorm WarningMEGLauderdale38 min
Apr 3, 7:45 PM CDTSevere Thunderstorm WarningLZKPerry, Pulaski, Saline60 min
Apr 3, 8:00 PM CDTSevere Thunderstorm WarningMEGMississippi45 min
Apr 3, 8:02 PM CDTSevere Thunderstorm WarningMEGPoinsett28 min
Apr 3, 8:04 PM CDTSevere Thunderstorm WarningLZKWhite, Woodruff56 min
Apr 3, 8:05 PM CDTSevere Thunderstorm WarningMEGHenderson25 min
Apr 3, 8:14 PM CDTSevere Thunderstorm WarningMEGCrittenden, Cross46 min
Apr 3, 8:17 PM CDTSevere Thunderstorm WarningMEGHardeman43 min
Apr 3, 8:20 PM CDTSevere Thunderstorm WarningMEGDecatur25 min
Apr 3, 8:33 PM CDTTornado WarningMEGDecatur, Henderson30 min
Apr 3, 8:43 PM CDTSevere Thunderstorm WarningLZKPulaski, Saline62 min
Apr 3, 8:45 PM CDTSevere Thunderstorm WarningMEGShelby, Tipton45 min
Apr 3, 9:01 PM CDTSevere Thunderstorm WarningMEGCrittenden44 min
Apr 3, 9:08 PM CDTSevere Thunderstorm WarningMEGMcNairy52 min
Apr 3, 9:16 PM CDTTornado WarningMEGMcNairy34 min
Apr 3, 9:27 PM CDTSevere Thunderstorm WarningMEGShelby48 min
Apr 3, 9:30 PM CDTFlash Flood WarningLZKPulaski2 hr
Apr 3, 9:43 PM CDTSevere Thunderstorm WarningLZKMonroe47 min
Apr 3, 9:45 PM CDTSevere Thunderstorm WarningLZKSaline30 min
Apr 3, 9:53 PM CDTSevere Thunderstorm WarningMEGMarshall37 min
Apr 3, 9:59 PM CDTSevere Thunderstorm WarningMEGAlcorn, Prentiss, Tippah46 min
Apr 3, 10:00 PM CDTSevere Thunderstorm WarningMEGDeSoto30 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 12:00Z, 8.2 hours before the alert went out and 204 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 12:00Z on 2007-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1013 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 12:00Z on 2007-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 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
1013 J/kg
Mixed-layer CIN
-152 J/kg
Mixed-layer LCL
824 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 3, 11:04 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clay, Craighead and 14 more26 min
Apr 3, 2:17 PM CDTMesoscale DiscussionSPCBaxter, Boone, Carroll, Clark, Cleburne, Cleveland and 53 more118 min
Apr 3, 5:47 PM CDTSevere Thunderstorm WatchSPCClark, Garland, Hempstead, Hot Spring, Howard, Lafayette and 7 more7 hr
Apr 3, 6:15 PM CDTMesoscale DiscussionSPCCrittenden, Cross, Lee, Lonoke, Mississippi, Monroe and 5 more60 min
Apr 3, 11:51 AM CDTTornado WatchSPCBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more8 hr
Apr 3, 1:10 PM CDTMesoscale DiscussionSPCBoone, Campbell, Gallatin, Kenton65 min
Apr 3, 1:33 PM CDTSevere Thunderstorm WatchSPCBoone, Breckinridge, Campbell, Carroll, Gallatin, Grant and 8 more7 hr
Apr 3, 2:15 PM CDTSevere Thunderstorm WatchSPCAllen, Barren, Bullitt, Butler, Clinton, Cumberland and 12 more6 hr
Apr 3, 2:25 PM CDTMesoscale DiscussionSPCBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 14 more65 min
Apr 3, 3:23 PM CDTMesoscale DiscussionSPCAdair, Anderson, Bath, Boone, Bourbon, Boyle and 46 more67 min
Apr 3, 5:05 PM CDTSevere Thunderstorm WatchSPCAdair, Anderson, Bath, Bell, Bourbon, Boyd and 60 more5 hr
Apr 3, 5:23 PM CDTMesoscale DiscussionSPCAllen, Barren, Breckinridge, Butler, Cumberland, Edmonson and 11 more2 hr
Apr 3, 11:29 AM CDTMesoscale DiscussionSPCAdams, Claiborne, Copiah, Franklin, Hinds, Holmes and 10 more2 hr
Apr 2, 8:05 PM CDTMesoscale DiscussionSPCAtchison, Harrison, Mercer, Nodaway, Putnam, Schuyler and 1 more115 min
Apr 2, 11:40 PM CDTMesoscale DiscussionSPCAndrew, Atchison, Buchanan, DeKalb, Gentry, Harrison and 3 more65 min
Apr 3, 12:03 AM CDTSevere Thunderstorm WatchSPCAdair, Andrew, Atchison, Buchanan, Caldwell, Clinton and 14 more7 hr
Apr 3, 2:22 AM CDTMesoscale DiscussionSPCAdair, Andrew, Atchison, Buchanan, Caldwell, Clinton and 14 more53 min
Apr 3, 4:05 AM CDTMesoscale DiscussionSPCAdair, Clark, Knox, Lewis, Macon, Marion and 3 more55 min
Apr 3, 4:19 AM CDTSevere Thunderstorm WatchSPCClark, Knox, Lewis, Marion, Monroe, Pike and 3 more6 hr
Apr 3, 4:28 AM CDTMesoscale DiscussionSPCCarroll, Cass, Chariton, Clay, Cole, Cooper and 12 more62 min
Apr 3, 7:17 AM CDTMesoscale DiscussionSPCAudrain, Bates, Benton, Boone, Callaway, Camden and 30 more88 min
Apr 3, 7:37 AM CDTSevere Thunderstorm WatchSPCAudrain, Bates, Benton, Boone, Callaway, Camden and 30 more8 hr
Apr 3, 9:08 AM CDTMesoscale DiscussionSPCSaint Louis, City of Saint Louis67 min
Apr 3, 9:46 AM CDTMesoscale DiscussionSPCAudrain, Bates, Benton, Boone, Callaway, Camden and 37 more29 min

Nearby

Tornado Watches in Arkansas, 2007Tornado Watches in Tennessee, 2007Tornado Watches in Mississippi, 2007Every tornado watch in 2007

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.