Alert archive / Arkansas / Tornado Watches in 2006

Tornado Watch 786

September 22, 20064 states

The Storm Prediction Center issued this tornado watch at Sep 22, 2006, 9:10 AM CDT for 4 states. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued
Sep 22, 2006, 9:10 AM CDT (14:10 UTC)
Expired
Sep 22, 2006, 6:30 PM CDT
In force
9 hr
Issued by
the Storm Prediction Center
Particularly dangerous situation
Yes
Largest hail expected
2 in
Strongest gust expected
60 kt
All 70 counties

Arkansas County, AR, Baxter County, AR, Boone County, AR, Clark County, AR, Clay County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Dallas County, AR, Faulkner County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Greene County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lawrence County, AR, Lee County, AR, Lincoln County, AR, Logan County, AR, Lonoke County, AR, Marion County, AR, Mississippi County, AR, Monroe County, AR, Montgomery County, AR, Newton County, AR, Perry County, AR, Phillips County, AR, Pike County, AR, Poinsett County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Dunklin County, MO, Pemiscot County, MO, Coahoma County, MS, DeSoto County, MS, Marshall County, MS, Panola County, MS, Quitman County, MS, Tate County, MS, Tunica County, MS, Crockett County, TN, Dyer County, TN, Fayette County, TN, Haywood County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN

The radar

The Little Rock radar (KLZK), 45 km from the middle of the area, began a volume at 14:10 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
70%
One or more EF2 to EF5 tornadoes
70%
Ten or more severe wind reports
40%
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
Sep 22, 12:55 PM CDTSevere Thunderstorm WarningLZKJohnson35 min
Sep 22, 1:10 PM CDTSevere Thunderstorm WarningLZKNewton50 min
Sep 22, 1:21 PM CDTSevere Thunderstorm WarningLZKBoone, Marion, Searcy39 min
Sep 22, 1:37 PM CDTTornado WarningLZKSearcy38 min
Sep 22, 2:11 PM CDTSevere Thunderstorm WarningLZKBaxter34 min
Sep 22, 2:27 PM CDTSevere Thunderstorm WarningLZKFulton, Izard33 min
Sep 22, 2:34 PM CDTTornado WarningLZKBaxter, Izard, Stone26 min
Sep 22, 2:39 PM CDTTornado WarningLZKFulton51 min
Sep 22, 3:00 PM CDTTornado WarningLZKIzard, Sharp60 min
Sep 22, 3:34 PM CDTSevere Thunderstorm WarningMEGRandolph41 min
Sep 22, 3:38 PM CDTTornado WarningMEGLawrence, Randolph52 min
Sep 22, 3:42 PM CDTSevere Thunderstorm WarningLZKBoone48 min
Sep 22, 3:53 PM CDTTornado WarningLZKNewton52 min
Sep 22, 3:56 PM CDTTornado WarningLZKBoone34 min
Sep 22, 4:04 PM CDTTornado WarningMEGClay41 min
Sep 22, 4:21 PM CDTSevere Thunderstorm WarningLZKGarland, Montgomery39 min
Sep 22, 4:41 PM CDTTornado WarningMEGRandolph34 min
Sep 22, 4:44 PM CDTSevere Thunderstorm WarningLZKMarion, Searcy46 min
Sep 22, 4:48 PM CDTSevere Thunderstorm WarningMEGDunklin27 min
Sep 22, 4:53 PM CDTTornado WarningLZKSearcy37 min
Sep 22, 4:55 PM CDTTornado WarningMEGClay35 min
Sep 22, 5:03 PM CDTSevere Thunderstorm WarningLZKGarland, Perry, Saline42 min
Sep 22, 5:06 PM CDTSevere Thunderstorm WarningLZKBaxter24 min
Sep 22, 5:07 PM CDTTornado WarningMEGGreene23 min
Sep 22, 5:14 PM CDTTornado WarningLZKBaxter31 min
Sep 22, 5:22 PM CDTTornado WarningLZKBaxter, Stone38 min
Sep 22, 5:22 PM CDTTornado WarningMEGDunklin38 min
Sep 22, 5:29 PM CDTTornado WarningMEGClay31 min
Sep 22, 5:41 PM CDTSevere Thunderstorm WarningLZKMarion34 min
Sep 22, 5:44 PM CDTTornado WarningMEGPemiscot46 min
Sep 22, 5:47 PM CDTTornado WarningLZKIzard43 min
Sep 22, 5:51 PM CDTSevere Thunderstorm WarningLZKBaxter24 min
Sep 22, 5:51 PM CDTSevere Thunderstorm WarningLZKBoone, Newton39 min
Sep 22, 6:00 PM CDTTornado WarningLZKNewton30 min
Sep 22, 6:06 PM CDTTornado WarningMEGLake39 min
Sep 22, 6:16 PM CDTTornado WarningLZKBoone, Marion29 min
Sep 22, 6:20 PM CDTTornado WarningLZKJohnson25 min
Sep 22, 6:21 PM CDTTornado WarningMEGObion54 min
Sep 22, 6:23 PM CDTTornado WarningLZKSharp52 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, 2.2 hours before the alert went out and 219 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 2006-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2207 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 2006-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 268 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
2207 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
574 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
268 m²/s²
0-3 km storm-relative helicity
289 m²/s²
Significant tornado parameter
3.2
Supercell composite
13.4

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 21, 7:50 PM CDTMesoscale DiscussionSPCClark, Franklin, Garland, Hot Spring, Howard, Logan and 7 more115 min
Sep 21, 7:58 PM CDTMesoscale DiscussionSPCBenton, Madison, Washington2 hr
Sep 21, 9:30 PM CDTTornado WatchSPCArkansas, Clark, Conway, Crawford, Faulkner, Franklin and 24 more8 hr
Sep 21, 11:25 PM CDTMesoscale DiscussionSPCClark, Conway, Crawford, Franklin, Garland, Hot Spring and 16 more2 hr
Sep 22, 4:08 AM CDTMesoscale DiscussionSPCArkansas, Clay, Cleburne, Conway, Craighead, Crittenden and 23 more67 min
Sep 22, 4:39 AM CDTTornado WatchSPCClay, Cleburne, Craighead, Crittenden, Cross, Fulton and 17 more5 hr
Sep 22, 8:35 AM CDTMesoscale DiscussionSPCArkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 53 more85 min
Sep 22, 11:10 AM CDTMesoscale DiscussionSPCBenton, Carroll, Crawford, Madison, Sebastian, Washington95 min
Sep 22, 12:06 PM CDTTornado Watch PDSSPCBenton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more9 hr
Sep 22, 12:15 PM CDTMesoscale DiscussionSPCArkansas, Baxter, Boone, Bradley, Calhoun, Carroll and 64 more90 min
Sep 22, 3:00 PM CDTMesoscale DiscussionSPCArkansas, Baxter, Benton, Boone, Carroll, Clark and 58 more90 min
Sep 22, 5:58 PM CDTMesoscale DiscussionSPCClark, Cleburne, Conway, Craighead, Crawford, Cross and 38 more92 min
Sep 22, 6:29 PM CDTTornado WatchSPCBaxter, Boone, Clay, Cleburne, Craighead, Fulton and 16 more7 hr
Sep 22, 1:11 PM CDTMesoscale DiscussionSPCAlcorn, Benton, Calhoun, Chickasaw, Clay, Itawamba and 11 more94 min
Sep 22, 2:10 PM CDTTornado WatchSPCAlcorn, Benton, Calhoun, Chickasaw, Itawamba, Lafayette and 9 more5 hr
Sep 22, 6:15 PM CDTMesoscale DiscussionSPCBenton, Calhoun, Chickasaw, Itawamba, Lee, Monroe and 5 more60 min
Sep 22, 12:49 PM CDTMesoscale DiscussionSPCBollinger, Callaway, Cape Girardeau, Carter, Crawford, Dent and 23 more2 hr
Sep 22, 1:16 PM CDTTornado WatchSPCAudrain, Bollinger, Boone, Butler, Callaway, Cape Girardeau and 31 more8 hr
Sep 22, 5:08 PM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Crawford, Dent and 33 more2 hr
Sep 22, 2:55 PM CDTMesoscale DiscussionSPCBenton, Henry, Obion, Stewart, Weakley2 hr

Nearby

Tornado Watches in Arkansas, 2006Tornado Watches in Tennessee, 2006Tornado Watches in Mississippi, 2006Every tornado watch in 2006

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.