Alert archive / North Dakota / Mesoscale Discussions in 2007

Mesoscale Discussion 1104

June 11, 200713 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2007, 9:13 PM CDT for 13 counties in North Dakota. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Jun 11, 2007, 9:13 PM CDT (02:13 UTC)
Expired: Jun 11, 2007, 10:45 PM CDT
In force: 92 min
Issued by: the Storm Prediction Center

Counties Bottineau County, ND, Burleigh County, ND, Dunn County, ND, McHenry County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND, Pierce County, ND, Rolette County, ND, Sheridan County, ND, Stark County, ND, Ward County, ND

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 383Jun 11, 11:35 PM CDT

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.2 hours before the alert went out and 127 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: 2510 J/kg
Mixed-layer CIN: -219 J/kg
Mixed-layer LCL: 1586 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 11, 11:32 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Billings, Bowman, Burke, Divide, Dunn and 11 more	5 hr
Jun 12, 3:03 AM CDT	Mesoscale Discussion	SPC	Adams, Billings, Bowman, Burke, Divide, Dunn and 11 more	57 min
Jun 12, 12:40 PM CDT	Mesoscale Discussion	SPC	Adams, Benson, Burleigh, Dunn, Emmons, Grant and 15 more	2 hr
Jun 12, 2:02 PM CDT	Tornado Watch	SPC	Benson, Bottineau, Burleigh, Cavalier, Dickey, Eddy and 22 more	6 hr
Jun 12, 4:23 PM CDT	Mesoscale Discussion	SPC	Benson, Bottineau, Burleigh, Eddy, Emmons, Foster and 14 more	2 hr

Nearby

Mesoscale Discussions in North Dakota, 2007 Every mesoscale discussion in 2007

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.