Alert archive / Mississippi / Mesoscale Discussions in 2023

Mesoscale Discussion 965

June 10, 20234 states

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2023, 3:09 PM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 10, 2023, 3:09 PM CDT (20:09 UTC)
Expired
Jun 10, 2023, 5:15 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch possible 261
Chance of a watch
40%
All 61 counties

Ashley County, AR, Chicot County, AR, Crittenden County, AR, Cross County, AR, Desha County, AR, Drew County, AR, Lee County, AR, Monroe County, AR, Phillips County, AR, St. Francis County, AR, Avoyelles Parish, LA, Bienville Parish, LA, Caldwell Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Red River Parish, LA, Richland Parish, LA, Sabine Parish, LA, Tensas Parish, LA, Union Parish, LA, Vernon Parish, LA, West Carroll Parish, LA, Winn Parish, LA, Adams County, MS, Bolivar County, MS, Carroll County, MS, Claiborne County, MS, Coahoma County, MS, DeSoto County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jefferson County, MS, Leflore County, MS, Madison County, MS, Montgomery County, MS, Panola County, MS, Quitman County, MS, Sharkey 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, Sabine County, TX

The radar

The Jackson/Brandon,MS radar (KDGX), 160 km from the middle of the area, began a volume at 20:08 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

Shreveport, LA (KSHV), launched 12:00Z, 8.2 hours before the alert went out and 216 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, Shreveport, LA at 12:00Z on 2023-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1436 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, Shreveport, LA at 12:00Z on 2023-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.1939Sfc1 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
1436 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1284 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!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 10, 10:14 AM CDTMesoscale DiscussionSPCColumbia, Hempstead, Howard, Lafayette, Little River, Miller and 4 more3 hr
Jun 10, 10:52 AM CDTSevere Thunderstorm WatchSPCColumbia, Hempstead, Howard, Lafayette, Little River, Miller and 3 more7 hr
Jun 10, 4:17 PM CDTSevere Thunderstorm WatchSPCCatahoula, Concordia, East Carroll, Franklin, Madison, Richland and 2 more5 hr
Jun 10, 6:19 PM CDTMesoscale DiscussionSPCAcadia, Ascension, Assumption, Avoyelles, Catahoula, Concordia and 22 more86 min
Jun 9, 10:04 PM CDTMesoscale DiscussionSPCBandera, Concho, Crockett, Dimmit, Edwards, Gillespie and 16 more116 min
Jun 10, 2:08 PM CDTMesoscale DiscussionSPCAnderson, Bosque, Dallas, Ellis, Erath, Falls and 17 more3 hr
Jun 10, 2:37 PM CDTSevere Thunderstorm WatchSPCAnderson, Angelina, Bell, Bosque, Brazos, Burleson and 43 more7 hr
Jun 10, 5:55 PM CDTMesoscale DiscussionSPCAnderson, Angelina, Bell, Bosque, Cherokee, Collin and 32 more95 min
Jun 10, 6:42 PM CDTMesoscale DiscussionSPCDallam, Hansford, Sherman63 min

Nearby

Mesoscale Discussions in Mississippi, 2023Mesoscale Discussions in Louisiana, 2023Mesoscale Discussions in Arkansas, 2023Every mesoscale discussion in 2023

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.