Alert archive / Nebraska / Mesoscale Discussions in 2003

Mesoscale Discussion 1332

June 11, 200318 counties in Nebraska; 14 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2003, 6:04 PM CDT for 18 counties in Nebraska; 14 counties in South Dakota. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued: Jun 11, 2003, 6:04 PM CDT (23:04 UTC)
Expired: Jun 11, 2003, 7:30 PM CDT
In force: 86 min
Issued by: the Storm Prediction Center

All 32 counties

Antelope County, NE, Boone County, NE, Boyd County, NE, Garfield County, NE, Greeley County, NE, Holt County, NE, Howard County, NE, Knox County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Rock County, NE, Sherman County, NE, Valley County, NE, Wheeler County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Hyde County, SD, Jerauld County, SD, Sanborn County, SD

The radar

The North Platte radar (KLNX), 176 km from the middle of the area, began a volume at 23:07 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.

Tornado Watch 519Jun 11, 6:45 PM CDT

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.1 hours before the alert went out and 233 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: 767 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 144 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 11, 2:06 PM CDT	Mesoscale Discussion	SPC	Arthur, Banner, Blaine, Box Butte, Chase, Cherry and 20 more	114 min
Jun 11, 2:40 PM CDT	Tornado Watch	SPC	Arthur, Blaine, Brown, Cherry, Custer, Grant and 8 more	6 hr
Jun 11, 4:58 PM CDT	Mesoscale Discussion	SPC	Arthur, Blaine, Brown, Cherry, Custer, Grant and 7 more	92 min
Jun 11, 5:33 PM CDT	Mesoscale Discussion	SPC	Chase, Dundy, Frontier, Furnas, Gosper, Hayes and 3 more	87 min
Jun 11, 5:50 PM CDT	Severe Thunderstorm Watch	SPC	Chase, Dundy, Frontier, Furnas, Hayes, Hitchcock and 3 more	5 hr
Jun 11, 6:45 PM CDT	Tornado Watch	SPC	Antelope, Boyd, Cedar, Garfield, Holt, Knox and 5 more	4 hr

Nearby

Mesoscale Discussions in Nebraska, 2003 Mesoscale Discussions in South Dakota, 2003 Every mesoscale discussion in 2003

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.