Alert archive / Missouri / Mesoscale Discussions in 2009

Mesoscale Discussion 248

March 24, 20094 states

The Storm Prediction Center issued this mesoscale discussion at Mar 24, 2009, 3:22 AM CDT for 4 states. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued: Mar 24, 2009, 3:22 AM CDT (08:22 UTC)
Expired: Mar 24, 2009, 4:45 AM CDT
In force: 83 min
Issued by: the Storm Prediction Center

All 21 counties

Benton County, AR, Carroll County, AR, Cherokee County, KS, Barry County, MO, Barton County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Polk County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Vernon County, MO, Webster County, MO, Ottawa County, OK

The radar

The Springfield radar (KSGF), 50 km from the middle of the area, began a volume at 08:21 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

Springfield, MO (KSGF), launched 00:00Z, 8.4 hours before the alert went out and 20 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1819 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 231 m²/s²
0-3 km storm-relative helicity: 316 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.

<!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.

Issued	Product	Office	Counties	Lasted
Mar 24, 9:38 AM CDT	Mesoscale Discussion	SPC	Baxter, Benton, Boone, Carroll, Crawford, Franklin and 15 more	97 min
Mar 24, 10:00 AM CDT	Severe Thunderstorm Watch	SPC	Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more	5 hr
Mar 24, 12:02 PM CDT	Mesoscale Discussion	SPC	Baxter, Benton, Boone, Carroll, Cleburne, Conway and 19 more	88 min
Mar 24, 2:33 PM CDT	Mesoscale Discussion	SPC	Arkansas, Baxter, Clark, Clay, Cleburne, Cleveland and 35 more	87 min
Mar 24, 3:15 PM CDT	Severe Thunderstorm Watch	SPC	Clay, Cleburne, Conway, Craighead, Crittenden, Cross and 17 more	4 hr
Mar 24, 5:36 PM CDT	Mesoscale Discussion	SPC	Clay, Craighead, Crittenden, Cross, Greene, Lawrence and 8 more	54 min
Mar 23, 11:09 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Bourbon, Butler, Chase and 31 more	66 min
Mar 23, 11:35 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Bourbon, Butler, Chase and 31 more	115 min
Mar 23, 11:43 PM CDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Atchison, Butler, Chase, Chautauqua and 28 more	5 hr
Mar 24, 2:28 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 17 more	2 hr

Nearby

Mesoscale Discussions in Missouri, 2009 Mesoscale Discussions in Arkansas, 2009 Mesoscale Discussions in Kansas, 2009 Every mesoscale discussion in 2009

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.