Alert archive / Arkansas / Mesoscale Discussions in 2006

Mesoscale Discussion 741

May 3, 20064 states

The Storm Prediction Center issued this mesoscale discussion at May 3, 2006, 1:28 PM CDT for 4 states. It was in force for 32 min.

The area

The outline as issued.

The facts

Issued
May 3, 2006, 1:28 PM CDT (18:28 UTC)
Expired
May 3, 2006, 2:00 PM CDT
In force
32 min
Issued by
the Storm Prediction Center
All 53 counties

Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Jefferson County, AR, Lafayette County, AR, Lee County, AR, Lincoln County, AR, Little River County, AR, Lonoke County, AR, Miller County, AR, Monroe County, AR, Nevada County, AR, Ouachita County, AR, Phillips County, AR, Pike County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, Lincoln Parish, LA, Morehouse Parish, LA, Red River Parish, LA, Union Parish, LA, Webster Parish, LA, Bolivar County, MS, Bowie County, TX, Camp County, TX, Cass County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Panola County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Wood County, TX

The radar

The Shreveport radar (KSHV), 132 km from the middle of the area, began a volume at 18:27 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 6.5 hours before the alert went out and 344 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 2006-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1440 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 2006-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -52 square meters per square second.193958Sfc1 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
1440 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
852 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-52 m²/s²
0-3 km storm-relative helicity
-4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
May 3, 12:46 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clay, Craighead and 11 more59 min
May 3, 1:02 PM CDTSevere Thunderstorm WatchSPCBaxter, Boone, Clay, Fulton, Greene, Izard and 7 more7 hr
May 3, 2:17 PM CDTSevere Thunderstorm WatchSPCArkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 35 more7 hr
May 3, 4:06 PM CDTMesoscale DiscussionSPCArkansas, Ashley, Baxter, Benton, Boone, Bradley and 55 more54 min
May 3, 6:34 PM CDTMesoscale DiscussionSPCArkansas, Baxter, Boone, Clay, Cleburne, Craighead and 30 more86 min
May 2, 7:42 PM CDTSevere Thunderstorm WatchSPCBosque, Collin, Comanche, Concho, Cooke, Coryell and 28 more6 hr
May 2, 8:47 PM CDTMesoscale DiscussionSPCDimmit, Edwards, Kinney, Maverick, Real, Sutton and 3 more58 min
May 2, 9:24 PM CDTMesoscale DiscussionSPCCooke, Fannin, Grayson, Montague96 min
May 2, 10:32 PM CDTMesoscale DiscussionSPCBosque, Brown, Collin, Comanche, Cooke, Denton and 18 more88 min
May 3, 1:28 AM CDTMesoscale DiscussionSPCBell, Bosque, Burnet, Collin, Coryell, Dallas and 29 more32 min
May 3, 3:42 PM CDTMesoscale DiscussionSPCArcher, Baylor, Borden, Briscoe, Childress, Clay and 31 more93 min
May 3, 3:56 PM CDTSevere Thunderstorm WatchSPCArcher, Bailey, Baylor, Borden, Briscoe, Castro and 34 more7 hr

Nearby

Mesoscale Discussions in Arkansas, 2006Mesoscale Discussions in Texas, 2006Mesoscale Discussions in Louisiana, 2006Every mesoscale discussion 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.