Alert archive / Arkansas / Tornado Watches in 2005

Tornado Watch 817

September 24, 20055 states

The Storm Prediction Center issued this tornado watch at Sep 24, 2005, 8:55 PM CDT for 5 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Sep 24, 2005, 8:55 PM CDT (01:55 UTC)
Expired
Sep 25, 2005, 3:34 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 91 counties

Arkansas County, AR, Ashley County, AR, Baxter County, AR, Boone County, AR, Bradley County, AR, Chicot County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Grant County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lee County, AR, Lincoln County, AR, Lonoke County, AR, Marion County, AR, Mississippi County, AR, Monroe County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Pulaski County, AR, Randolph 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, 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, Dunklin County, MO, Adams County, MS, Attala County, MS, Bolivar County, MS, Carroll County, MS, Claiborne County, MS, Coahoma County, MS, Copiah County, MS, Covington County, MS, DeSoto County, MS, Franklin County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Lawrence County, MS, Leake County, MS, Leflore County, MS, Lincoln County, MS, Madison County, MS, Montgomery County, MS, Panola 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, Tunica County, MS, Warren County, MS, Washington County, MS, Yalobusha County, MS, Yazoo County, MS, Shelby County, TN

The radar

The Jackson/Brandon,MS radar (KDGX), 158 km from the middle of the area, began a volume at 01:55 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Sep 24, 8:58 PM CDTTornado WarningMEGTallahatchie32 min
Sep 24, 9:13 PM CDTTornado WarningJANBolivar, Humphreys, Sharkey, Sunflower, Washington47 min
Sep 24, 9:20 PM CDTTornado WarningLZKArkansas40 min
Sep 24, 9:20 PM CDTTornado WarningJANMadison, Tensas40 min
Sep 24, 9:43 PM CDTSevere Thunderstorm WarningJANCatahoula, Concordia, Franklin, Tensas62 min
Sep 24, 9:44 PM CDTTornado WarningJANEast Carroll, Madison46 min
Sep 24, 10:26 PM CDTTornado WarningJANChicot13 min
Sep 24, 10:50 PM CDTFlash Flood WarningLZKArkansas3 hr
Sep 24, 11:33 PM CDTSevere Thunderstorm WarningJANConcordia27 min
Sep 24, 11:38 PM CDTSevere Thunderstorm WarningJANEast Carroll, Madison, Richland, West Carroll40 min
Sep 24, 11:49 PM CDTFlash Flood WarningJANCatahoula, Concordia, Franklin, Madison, Richland, Tensas3 hr
Sep 24, 11:55 PM CDTSevere Thunderstorm WarningJANCatahoula26 min
Sep 25, 12:00 AM CDTSevere Thunderstorm WarningJANChicot45 min
Sep 25, 12:02 AM CDTFlash Flood WarningJANChicot4 hr
Sep 25, 12:08 AM CDTFlash Flood WarningLZKDesha, Drew, Lincoln3 hr
Sep 25, 12:11 AM CDTSevere Thunderstorm WarningJANConcordia34 min
Sep 25, 12:27 AM CDTTornado WarningJANConcordia18 min
Sep 25, 12:43 AM CDTTornado WarningJANTensas62 min
Sep 25, 12:43 AM CDTFlash Flood WarningJANBolivar, Washington6 hr
Sep 25, 1:03 AM CDTTornado WarningJANConcordia51 min
Sep 25, 1:08 AM CDTFlash Flood WarningLZKJefferson, Lonoke, Prairie, White3 hr
Sep 25, 1:20 AM CDTSevere Thunderstorm WarningMEGPhillips25 min
Sep 25, 1:28 AM CDTTornado WarningMEGLee, Phillips32 min
Sep 25, 1:33 AM CDTTornado WarningJANFranklin20 min
Sep 25, 1:37 AM CDTTornado WarningJANMadison23 min
Sep 25, 1:41 AM CDTFlash Flood WarningLZKArkansas, Monroe, Woodruff3 hr
Sep 25, 1:44 AM CDTTornado WarningJANTensas46 min
Sep 25, 2:10 AM CDTTornado WarningJANIssaquena, Sharkey35 min
Sep 25, 2:30 AM CDTSevere Thunderstorm WarningJANBolivar, Washington45 min
Sep 25, 2:38 AM CDTTornado WarningJANWarren35 min
Sep 25, 2:48 AM CDTFlash Flood WarningJANConcordia3 hr
Sep 25, 3:05 AM CDTTornado WarningJANSunflower55 min
Sep 25, 3:07 AM CDTSevere Thunderstorm WarningJANAdams, Jefferson53 min
Sep 25, 3:15 AM CDTFlash Flood WarningLZKDesha3 hr
Sep 25, 3:22 AM CDTTornado WarningJANAdams, Franklin, Jefferson38 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 00:00Z, 1.9 hours before the alert went out and 148 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 00:00Z on 2005-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 947 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 00:00Z on 2005-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 234 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
947 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
724 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
234 m²/s²
0-3 km storm-relative helicity
270 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 24, 11:31 PM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Chicot, Cleburne, Cleveland and 30 more89 min
Sep 25, 3:07 AM CDTMesoscale DiscussionSPCArkansas, Ashley, Baxter, Boone, Bradley, Chicot and 34 more53 min
Sep 25, 3:40 AM CDTTornado WatchSPCArkansas, Chicot, Clay, Craighead, Crittenden, Cross and 15 more9 hr
Sep 25, 9:32 AM CDTMesoscale DiscussionSPCClay, Craighead, Crittenden, Greene, Lawrence, Mississippi and 3 more88 min
Sep 25, 11:05 AM CDTTornado WatchSPCAlcorn, Itawamba, Lee, Monroe, Prentiss, Tishomingo8 hr
Sep 25, 12:30 PM CDTTornado WatchSPCAttala, Choctaw, Claiborne, Clarke, Copiah, Covington and 26 more6 hr
Sep 25, 1:21 PM CDTMesoscale DiscussionSPCAdams, Attala, Choctaw, Clarke, Clay, Copiah and 33 more114 min
Sep 25, 3:41 PM CDTMesoscale DiscussionSPCAdams, Attala, Choctaw, Clarke, Clay, Copiah and 33 more94 min
Sep 25, 6:05 PM CDTMesoscale DiscussionSPCClarke, Clay, Jasper, Kemper, Lauderdale, Leake and 11 more55 min
Sep 25, 6:50 PM CDTTornado WatchSPCAttala, Choctaw, Clarke, Clay, Itawamba, Jasper and 15 more6 hr
Sep 25, 3:24 PM CDTMesoscale DiscussionSPCAdair, Andrew, Atchison, Buchanan, Caldwell, Clark and 22 more96 min

Nearby

Tornado Watches in Arkansas, 2005Tornado Watches in Mississippi, 2005Tornado Watches in Louisiana, 2005Every tornado watch in 2005

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.