Alert archive / Nebraska / Mesoscale Discussions in 2008

Mesoscale Discussion 2022

August 3, 200822 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Aug 3, 2008, 11:06 PM CDT for 22 counties in Nebraska. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued: Aug 3, 2008, 11:06 PM CDT (04:06 UTC)
Expired: Aug 4, 2008, 12:30 AM CDT
In force: 84 min
Issued by: the Storm Prediction Center

All 22 counties

Blaine County, NE, Buffalo County, NE, Chase County, NE, Custer County, NE, Dawson County, NE, Dundy County, NE, Frontier County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hayes County, NE, Hitchcock County, NE, Holt County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, Phelps County, NE, Red Willow County, NE, Rock County, NE, Sherman County, NE, Valley County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 104 km from the middle of the area, began a volume at 04:06 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, 4.1 hours before the alert went out and 26 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: 1132 J/kg
Mixed-layer CIN: -137 J/kg
Mixed-layer LCL: 2755 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

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
Aug 3, 7:02 PM CDT	Severe Thunderstorm Watch	SPC	Arthur, Blaine, Box Butte, Boyd, Brown, Chase and 28 more	7 hr

Nearby

Mesoscale Discussions in Nebraska, 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.