Alert archive / Arkansas / Mesoscale Discussions in 2005

Mesoscale Discussion 403

March 26, 20055 states

The Storm Prediction Center issued this mesoscale discussion at Mar 26, 2005, 4:42 PM CST for 5 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 26, 2005, 4:42 PM CST (22:42 UTC)
Expired
Mar 26, 2005, 6:45 PM CST
In force
2 hr
Issued by
the Storm Prediction Center
All 69 counties

Arkansas County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Jackson County, AR, Jefferson County, AR, Lafayette County, AR, Lee County, AR, Lincoln County, AR, Little River County, AR, Lonoke County, AR, Miller County, AR, Mississippi County, AR, Monroe County, AR, Nevada County, AR, Ouachita County, AR, Phillips County, AR, Pike County, AR, Poinsett County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Sevier County, AR, St. Francis County, AR, Union County, AR, White County, AR, Woodruff County, AR, Dunklin County, MO, Pemiscot County, MO, Benton County, MS, Bolivar County, MS, 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, Gibson County, TN, Hardeman County, TN, Haywood County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, Shelby County, TN, Tipton County, TN, Bowie County, TX, Camp County, TX, Cass County, TX, Marion County, TX, Morris County, TX, Red River County, TX, Titus County, TX

The radar

The Little Rock radar (KLZK), 54 km from the middle of the area, began a volume at 22:41 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.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.7 hours before the alert went out and 291 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 2005-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 151 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 2005-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.1939587897117136Sfc1 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
151 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
801 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 26, 9:07 AM CSTMesoscale DiscussionSPCGeorge, Greene, Jackson113 min
Mar 26, 1:14 PM CSTMesoscale DiscussionSPCAdams, Amite, Claiborne, Clarke, Copiah, Covington and 28 more2 hr
Mar 26, 1:45 PM CSTTornado WatchSPCAdams, Amite, Clarke, Copiah, Covington, Forrest and 23 more7 hr
Mar 26, 3:14 PM CSTMesoscale DiscussionSPCAdams, Amite, Claiborne, Copiah, Franklin, Hinds and 11 more31 min
Mar 26, 3:30 PM CSTTornado WatchSPCAdams, Amite, Attala, Carroll, Choctaw, Claiborne and 33 more8 hr
Mar 26, 5:54 PM CSTMesoscale DiscussionSPCClarke, Jasper, Kemper, Lauderdale, Lowndes, Newton and 2 more66 min
Mar 25, 8:02 PM CSTMesoscale DiscussionSPCAnderson, Bell, Bosque, Brazos, Brown, Burleson and 51 more118 min
Mar 25, 8:20 PM CSTSevere Thunderstorm WatchSPCAngelina, Austin, Bastrop, Bell, Blanco, Brazos and 24 more6 hr
Mar 25, 10:25 PM CSTMesoscale DiscussionSPCAustin, Brazos, Burleson, Fayette, Grimes, Houston and 12 more95 min
Mar 26, 12:56 AM CSTMesoscale DiscussionSPCBandera, Bastrop, Bell, Blanco, Bosque, Brown and 48 more94 min
Mar 26, 1:25 AM CSTSevere Thunderstorm WatchSPCBandera, Borden, Brown, Callahan, Coke, Coleman and 35 more7 hr
Mar 26, 4:20 AM CSTMesoscale DiscussionSPCBandera, Blanco, Borden, Brown, Callahan, Coke and 45 more115 min
Mar 26, 6:12 AM CSTMesoscale DiscussionSPCBandera, Bell, Blanco, Bosque, Brown, Burnet and 42 more63 min
Mar 26, 6:40 AM CSTSevere Thunderstorm WatchSPCAnderson, Bell, Blanco, Bosque, Burnet, Concho and 30 more7 hr
Mar 26, 10:05 AM CSTMesoscale DiscussionSPCAnderson, Angelina, Atascosa, Austin, Bastrop, Bell and 42 more115 min
Mar 26, 12:42 PM CSTMesoscale DiscussionSPCLoving2 hr

Nearby

Mesoscale Discussions in Arkansas, 2005Mesoscale Discussions in Tennessee, 2005Mesoscale Discussions in Mississippi, 2005Every mesoscale discussion 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.