Alert archive / Arkansas / Mesoscale Discussions in 2014

Mesoscale Discussion 837

June 5, 20146 states

The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2014, 1:22 PM CDT for 6 states. It was in force for 53 min.

The area

The outline as issued.

The facts

Issued
Jun 5, 2014, 1:22 PM CDT (18:22 UTC)
Expired
Jun 5, 2014, 2:15 PM CDT
In force
53 min
Issued by
the Storm Prediction Center
All 76 counties

Marion County, AL, Baxter County, AR, Clay County, AR, Cleburne County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Lee County, AR, Mississippi County, AR, Poinsett County, AR, Randolph County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Fulton County, KY, Hickman County, KY, Butler County, MO, Carter County, MO, Douglas County, MO, Dunklin County, MO, Howell County, MO, Laclede County, MO, Mississippi County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Pemiscot County, MO, Ripley County, MO, Shannon County, MO, Stoddard County, MO, Texas County, MO, Wayne County, MO, Wright County, MO, Alcorn County, MS, Benton County, MS, DeSoto County, MS, Itawamba County, MS, Lee County, MS, Marshall County, MS, Prentiss County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Perry County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 122 km from the middle of the area, began a volume at 18:25 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 (KBYH), launched 12:00Z, 6.4 hours before the alert went out and 168 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 2014-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1632 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 2014-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 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
1632 J/kg
Mixed-layer CIN
-211 J/kg
Mixed-layer LCL
673 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
132 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.

<!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 4, 11:53 PM CDTMesoscale DiscussionSPCLimestone97 min
Jun 5, 2:14 AM CDTMesoscale DiscussionSPCDeKalb, Jackson, Lauderdale, Limestone, Madison91 min
Jun 5, 2:27 PM CDTSevere Thunderstorm WatchSPCBlount, Calhoun, Cherokee, Clay, Cleburne, Colbert and 19 more6 hr
Jun 5, 5:10 PM CDTMesoscale DiscussionSPCBlount, Calhoun, Chambers, Cherokee, Clay, Cleburne and 5 more95 min
Jun 4, 7:24 PM CDTTornado WatchSPCClay, Greene, Randolph8 hr
Jun 5, 2:42 AM CDTMesoscale DiscussionSPCBaxter, Boone, Carroll, Marion93 min
Jun 5, 6:26 AM CDTSevere Thunderstorm WatchSPCBenton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more6 hr
Jun 5, 7:40 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Crawford, Franklin and 8 more2 hr
Jun 5, 9:27 AM CDTMesoscale DiscussionSPCBaxter, Clay, Cleburne, Craighead, Crittenden, Cross and 16 more63 min
Jun 5, 10:06 AM CDTSevere Thunderstorm WatchSPCBaxter, Boone, Clay, Cleburne, Craighead, Crittenden and 20 more7 hr
Jun 4, 9:07 PM CDTMesoscale DiscussionSPCBarton, Cedar, Christian, Dade, Dallas, Douglas and 7 more113 min
Jun 4, 9:23 PM CDTSevere Thunderstorm WatchSPCBarry, Barton, Cedar, Christian, Dade, Dallas and 21 more7 hr
Jun 5, 6:04 AM CDTMesoscale DiscussionSPCBarton, Bates, Cass, Cedar, Dade, Jasper and 3 more86 min
Jun 5, 8:07 AM CDTSevere Thunderstorm WatchSPCBates, Carroll, Cass, Clay, Cooper, Henry and 8 more5 hr
Jun 5, 10:42 AM CDTMesoscale DiscussionSPCCarroll, Cass, Clay, Clinton, Cooper, Howard and 7 more63 min
Jun 4, 7:00 PM CDTTornado WatchSPCAnderson, Blount, Campbell, Carter, Claiborne, Cocke and 17 more6 hr
Jun 4, 9:45 PM CDTMesoscale DiscussionSPCBlount, Carter, Cocke, Grainger, Greene, Hamblen and 10 more2 hr

Nearby

Mesoscale Discussions in Arkansas, 2014Mesoscale Discussions in Tennessee, 2014Mesoscale Discussions in Missouri, 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.