Alert archive / Kansas / Mesoscale Discussions in 2011

Mesoscale Discussion 1269

June 17, 20116 counties in Colorado; 8 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2011, 7:27 PM MDT for 6 counties in Colorado; 8 counties in Kansas. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: Jun 17, 2011, 7:27 PM MDT (01:27 UTC)
Expired: Jun 17, 2011, 9:00 PM MDT
In force: 93 min
Issued by: the Storm Prediction Center

Counties Bent County, CO, Cheyenne County, CO, Crowley County, CO, Kiowa County, CO, Lincoln County, CO, Prowers County, CO, Finney County, KS, Greeley County, KS, Hamilton County, KS, Kearny County, KS, Logan County, KS, Scott County, KS, Wallace County, KS, Wichita County, KS

The radar

The Goodland radar (KGLD), 116 km from the middle of the area, began a volume at 01:30 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

Denver, CO (KDNR), launched 00:00Z, 1.5 hours before the alert went out and 147 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: 1979 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: -59 m²/s²
0-3 km storm-relative helicity: 23 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 18, 11:45 AM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Cheyenne, Elbert, Kit Carson, Lincoln and 7 more	2 hr
Jun 18, 12:31 PM MDT	Severe Thunderstorm Watch	SPC	Bent, Cheyenne, Crowley, Elbert, El Paso, Kiowa and 11 more	7 hr
Jun 18, 4:15 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Kiowa, Kit Carson, Phillips, Prowers, Sedgwick and 1 more	90 min
Jun 17, 7:19 PM MDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Atchison, Barton, Bourbon, Brown and 67 more	7 hr
Jun 17, 10:12 PM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Clay and 45 more	93 min
Jun 18, 1:07 AM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Barton, Bourbon, Brown and 49 more	53 min
Jun 18, 2:34 PM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 10 more	116 min
Jun 18, 4:36 PM MDT	Severe Thunderstorm Watch	SPC	Decatur, Edwards, Ellis, Finney, Ford, Gove and 20 more	7 hr
Jun 18, 5:03 PM MDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 20 more	10 hr

Nearby

Mesoscale Discussions in Kansas, 2011 Mesoscale Discussions in Colorado, 2011 Every mesoscale discussion in 2011

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.