Alert archive / Nebraska / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 129, NWS Hastings, NE

August 7, 2007Gosper County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Aug 7, 2007, 1:24 AM CDT for Gosper County, Nebraska. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 7, 2007, 1:24 AM CDT (06:24 UTC)
Expired: Aug 7, 2007, 2:15 AM CDT
In force: 51 min
Issued by: NWS Hastings, NE
Area: Counties, with a storm outline in the text

County Gosper County, NE

The radar

The Grand Island radar (KUEX), 120 km from the middle of the area, began a volume at 06:24 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, 6.4 hours before the alert went out and 94 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: 1512 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 1688 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 6, 6:30 PM CDT, 6 hours 54 minutes earlier.

Area forecast discussion, Aug 6, 6:30 PM CDT, 6 hours 54 minutes before

<!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>

Hazardous weather outlook, Aug 6, 12:29 PM CDT, 12 hours 55 minutes before

<!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>

The office that day

Everything else NWS Hastings, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 6, 11:16 PM CDT	Severe Thunderstorm Warning	GID	Polk	29 min
Aug 6, 11:20 PM CDT	Flash Flood Watch	GID	Adams, Buffalo, Clay, Fillmore, Hall, Hamilton and 7 more	7 hr
Aug 7, 1:02 AM CDT	Severe Thunderstorm Warning	GID	Furnas	58 min
Aug 7, 1:28 AM CDT	Severe Thunderstorm Warning	GID	Phelps	47 min
Aug 7, 1:42 AM CDT	Severe Thunderstorm Warning	GID	Dawson	48 min
Aug 7, 1:52 AM CDT	Severe Thunderstorm Warning	GID	Buffalo, Kearney	53 min
Aug 7, 2:10 AM CDT	Severe Thunderstorm Warning	GID	Adams	54 min
Aug 7, 2:43 AM CDT	Severe Thunderstorm Warning	GID	Clay	32 min
Aug 7, 3:14 PM CDT	Flash Flood Watch	GID	Adams, Buffalo, Clay, Dawson, Fillmore, Franklin and 18 more	16 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2007 Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.