Alert archive / Nebraska / Mesoscale Discussions in 2005

Mesoscale Discussion 972

May 23, 200513 counties in Colorado; Cheyenne County, Sherman County, Wallace County, Kansas; 15 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 23, 2005, 1:08 PM MDT for 13 counties in Colorado; Cheyenne County, Sherman County, Wallace County, Kansas; 15 counties in Nebraska. It was in force for 67 min.

The area

The outline as issued.

The facts

Issued: May 23, 2005, 1:08 PM MDT (19:08 UTC)
Expired: May 23, 2005, 2:15 PM MDT
In force: 67 min
Issued by: the Storm Prediction Center

All 31 counties

Cheyenne County, CO, Crowley County, CO, El Paso County, CO, Elbert County, CO, Kiowa County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Phillips County, CO, Prowers County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Sherman County, KS, Wallace County, KS, Arthur County, NE, Chase County, NE, Cherry County, NE, Cheyenne County, NE, Deuel County, NE, Dundy County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hooker County, NE, Keith County, NE, McPherson County, NE, Perkins County, NE, Sheridan County, NE, Thomas County, NE

The radar

The Denver radar (KFTG), 129 km from the middle of the area, began a volume at 19:12 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.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 7.1 hours before the alert went out and 22 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: 2730 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 57 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
May 23, 2:20 PM MDT	Tornado Watch	SPC	Baca, Bent, Cheyenne, Crowley, Elbert, El Paso and 14 more	8 hr
May 23, 4:33 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Cheyenne, Crowley, Elbert, El Paso and 14 more	87 min
May 22, 8:33 PM MDT	Mesoscale Discussion	SPC	Allen, Butler, Chautauqua, Cherokee, Cowley, Crawford and 7 more	117 min
May 22, 9:20 PM MDT	Severe Thunderstorm Watch	SPC	Butler, Chautauqua, Cherokee, Cowley, Crawford, Elk and 14 more	6 hr
May 22, 10:35 PM MDT	Mesoscale Discussion	SPC	Butler, Chautauqua, Cherokee, Cowley, Crawford, Elk and 14 more	115 min
May 23, 1:31 AM MDT	Mesoscale Discussion	SPC	Butler, Chautauqua, Cherokee, Cowley, Crawford, Elk and 14 more	59 min
May 23, 2:25 AM MDT	Severe Thunderstorm Watch	SPC	Chautauqua	8 hr
May 23, 5:48 AM MDT	Mesoscale Discussion	SPC	Chautauqua	87 min
May 23, 3:36 PM MDT	Mesoscale Discussion	SPC	Chautauqua, Cherokee, Labette, Montgomery	84 min
May 23, 5:05 PM MDT	Severe Thunderstorm Watch	SPC	Decatur, Finney, Gove, Graham, Grant, Gray and 17 more	5 hr

Nearby

Mesoscale Discussions in Nebraska, 2005 Mesoscale Discussions in Colorado, 2005 Mesoscale Discussions in Kansas, 2005 Every mesoscale discussion in 2005

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.