Alert archive / Mississippi / Mesoscale Discussions in 2014

Mesoscale Discussion 914

June 8, 20145 states

The Storm Prediction Center issued this mesoscale discussion at Jun 8, 2014, 10:53 PM CDT for 5 states. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued
Jun 8, 2014, 10:53 PM CDT (03:53 UTC)
Expired
Jun 9, 2014, 12:30 AM CDT
In force
97 min
Issued by
the Storm Prediction Center
All 91 counties

Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Cleveland County, AR, Columbia County, AR, Crittenden County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Grant County, AR, Hempstead County, AR, Jefferson County, AR, Lafayette County, AR, Lee County, AR, Lincoln County, AR, Miller County, AR, Monroe County, AR, Nevada County, AR, Ouachita County, AR, Phillips County, AR, Prairie County, AR, St. Francis County, AR, Union County, AR, Bossier Parish, LA, Claiborne Parish, LA, East Carroll Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Richland Parish, LA, Union Parish, LA, Webster Parish, LA, West Carroll Parish, LA, Alcorn County, MS, Attala County, MS, Benton County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Coahoma County, MS, DeSoto County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Itawamba County, MS, Lafayette County, MS, Leake County, MS, Lee County, MS, Leflore County, MS, Lowndes County, MS, Madison County, MS, Marshall County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Noxubee County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Scott County, MS, Sharkey County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Warren County, MS, Washington County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Yazoo County, MS, Fayette County, TN, Hardeman County, TN, Hardin County, TN, McNairy County, TN, Shelby County, TN, Cass County, TX

The radar

The Little Rock radar (KLZK), 153 km from the middle of the area, began a volume at 03:55 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.

The nearest sounding before it

Little Rock, AR (KBYH), launched 00:00Z, 3.9 hours before the alert went out and 182 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 00:00Z on 2014-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 63 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 00:00Z on 2014-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 270 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
63 J/kg
Mixed-layer CIN
-171 J/kg
Mixed-layer LCL
790 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
270 m²/s²
0-3 km storm-relative helicity
440 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 7:47 PM CDTMesoscale DiscussionSPCAshley, Bradley, Calhoun, Chicot, Clark, Cleveland and 15 more88 min
Jun 8, 8:41 PM CDTSevere Thunderstorm WatchSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 20 more7 hr
Jun 9, 9:39 AM CDTMesoscale DiscussionSPCAshley, Bradley, Calhoun, Chicot, Clark, Cleveland and 11 more2 hr
Jun 9, 11:40 AM CDTSevere Thunderstorm WatchSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 16 more7 hr
Jun 9, 1:54 PM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Chicot, Craighead, Crittenden and 14 more96 min
Jun 9, 2:14 PM CDTTornado WatchSPCClay, Craighead, Crittenden, Cross, Greene, Lee and 4 more5 hr
Jun 9, 3:22 PM CDTMesoscale DiscussionSPCChicot83 min
Jun 9, 3:43 PM CDTMesoscale DiscussionSPCCrittenden, Mississippi92 min
Jun 9, 12:07 PM CDTMesoscale DiscussionSPCAllen, Beauregard, Calcasieu, Vernon2 hr
Jun 8, 7:09 PM CDTMesoscale DiscussionSPCKemper, Lauderdale, Noxubee2 hr
Jun 9, 2:07 AM CDTMesoscale DiscussionSPCAlcorn, Benton, Calhoun, Chickasaw, Clay, Grenada and 24 more83 min
Jun 9, 4:54 PM CDTMesoscale DiscussionSPCAlcorn, Attala, Benton, Calhoun, Carroll, Chickasaw and 35 more96 min
Jun 9, 5:16 PM CDTSevere Thunderstorm WatchSPCChoctaw, Clarke, Clay, Covington, Jasper, Jefferson Davis and 15 more8 hr
Jun 9, 5:19 PM CDTMesoscale DiscussionSPCAlcorn, Benton, Calhoun, Chickasaw, Itawamba, Lafayette and 9 more26 min
Jun 9, 5:30 PM CDTTornado WatchSPCAlcorn, Benton, Calhoun, Chickasaw, Itawamba, Lafayette and 9 more8 hr
Jun 9, 6:55 PM CDTMesoscale DiscussionSPCAlcorn, Chickasaw, Clay, Itawamba, Lee, Lowndes and 7 more95 min
Jun 8, 7:24 PM CDTMesoscale DiscussionSPCAndrews, Armstrong, Bailey, Briscoe, Carson, Castro and 37 more96 min
Jun 8, 9:06 PM CDTSevere Thunderstorm WatchSPCArmstrong, Bailey, Briscoe, Carson, Castro, Childress and 31 more7 hr
Jun 8, 9:56 PM CDTMesoscale DiscussionSPCCrane, Loving, Pecos, Reeves, Ward, Winkler94 min
Jun 8, 11:19 PM CDTMesoscale DiscussionSPCArmstrong, Bailey, Briscoe, Castro, Childress, Collingsworth and 24 more86 min
Jun 9, 2:28 AM CDTMesoscale DiscussionSPCAndrews, Archer, Bailey, Baylor, Borden, Brown and 53 more2 hr
Jun 9, 3:37 PM CDTMesoscale DiscussionSPCAtascosa, Bee, Bexar, Dimmit, Duval, Frio and 12 more2 hr
Jun 9, 5:53 PM CDTMesoscale DiscussionSPCAtascosa, Austin, Bastrop, Bexar, Burleson, Caldwell and 17 more2 hr

Nearby

Mesoscale Discussions in Mississippi, 2014Mesoscale Discussions in Arkansas, 2014Mesoscale Discussions in Louisiana, 2014Every mesoscale discussion in 2014

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.