Alert archive / Nebraska / Mesoscale Discussions in 2008

Mesoscale Discussion 2333

October 11, 20086 counties in Kansas; 8 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Oct 11, 2008, 11:32 PM CDT for 6 counties in Kansas; 8 counties in Nebraska. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued: Oct 11, 2008, 11:32 PM CDT (04:32 UTC)
Expired: Oct 12, 2008, 1:00 AM CDT
In force: 88 min
Issued by: the Storm Prediction Center

Counties Cheyenne County, KS, Decatur County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Dawson County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Hayes County, NE, Hitchcock County, NE, Phelps County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 114 km from the middle of the area, began a volume at 04:32 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.5 hours before the alert went out and 115 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 494 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 388 m²/s²
0-3 km storm-relative helicity: 457 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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
Oct 11, 8:46 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Finney, Gove, Grant, Gray, Greeley and 16 more	89 min
Oct 11, 10:59 PM CDT	Severe Thunderstorm Watch	SPC	Greeley, Hamilton, Logan, Morton, Stanton, Wallace and 1 more	5 hr
Oct 12, 3:05 AM CDT	Mesoscale Discussion	SPC	Hamilton	85 min

Nearby

Mesoscale Discussions in Nebraska, 2008 Mesoscale Discussions in Kansas, 2008 Every mesoscale discussion in 2008

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.