Alert archive / Georgia / Mesoscale Discussions in 2011

Mesoscale Discussion 1407

June 26, 20114 states

The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2011, 7:24 PM CDT for 4 states. It was in force for 66 min.

The area

The outline as issued.

The facts

Issued: Jun 26, 2011, 7:24 PM CDT (00:24 UTC)
Expired: Jun 26, 2011, 8:30 PM CDT
In force: 66 min
Issued by: the Storm Prediction Center

All 107 counties

Barbour County, AL, Bullock County, AL, Chambers County, AL, Clay County, AL, Cleburne County, AL, Elmore County, AL, Lee County, AL, Macon County, AL, Montgomery County, AL, Randolph County, AL, Russell County, AL, Tallapoosa County, AL, Baldwin County, GA, Banks County, GA, Barrow County, GA, Bibb County, GA, Butts County, GA, Carroll County, GA, Chattahoochee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Columbia County, GA, Coweta County, GA, Crawford County, GA, DeKalb County, GA, Douglas County, GA, Elbert County, GA, Fayette County, GA, Forsyth County, GA, Franklin County, GA, Fulton County, GA, Glascock County, GA, Greene County, GA, Gwinnett County, GA, Habersham County, GA, Hall County, GA, Hancock County, GA, Haralson County, GA, Harris County, GA, Hart County, GA, Heard County, GA, Henry County, GA, Jackson County, GA, Jasper County, GA, Jones County, GA, Lamar County, GA, Lincoln County, GA, Macon County, GA, Madison County, GA, Marion County, GA, McDuffie County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Paulding County, GA, Peach County, GA, Pike County, GA, Putnam County, GA, Quitman County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Stephens County, GA, Stewart County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Troup County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Wilkes County, GA, Wilkinson County, GA, Cabarrus County, NC, Cleveland County, NC, Gaston County, NC, Lincoln County, NC, Mecklenburg County, NC, Polk County, NC, Rutherford County, NC, Union County, NC, Abbeville County, SC, Anderson County, SC, Cherokee County, SC, Chester County, SC, Edgefield County, SC, Fairfield County, SC, Greenville County, SC, Greenwood County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Oconee County, SC, Pickens County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Union County, SC, York County, SC

The radar

The Greer radar (KGSP), 126 km from the middle of the area, began a volume at 00:25 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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.4 hours before the alert went out and 145 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: 250 J/kg
Mixed-layer CIN: -224 J/kg
Mixed-layer LCL: 1519 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 50 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
Jun 27, 1:44 PM CDT	Mesoscale Discussion	SPC	Autauga, Barbour, Bullock, Butler, Calhoun, Chambers and 22 more	2 hr
Jun 27, 3:17 PM CDT	Mesoscale Discussion	SPC	Catoosa, Dade, Walker	88 min
Jun 27, 12:15 PM CDT	Mesoscale Discussion	SPC	Beaufort, Bertie, Bladen, Brunswick, Camden, Carteret and 44 more	60 min
Jun 27, 12:34 PM CDT	Severe Thunderstorm Watch	SPC	Anson, Beaufort, Bertie, Bladen, Brunswick, Camden and 47 more	6 hr
Jun 27, 3:07 PM CDT	Mesoscale Discussion	SPC	Alamance, Alexander, Anson, Beaufort, Bertie, Bladen and 67 more	83 min

Nearby

Mesoscale Discussions in Georgia, 2011 Mesoscale Discussions in South Carolina, 2011 Mesoscale Discussions in Alabama, 2011 Every mesoscale discussion in 2011

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.