Alert archive / Kansas / Mesoscale Discussions in 2011

Mesoscale Discussion 943

May 24, 201123 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at May 24, 2011, 9:26 PM CDT for 23 counties in Kansas. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: May 24, 2011, 9:26 PM CDT (02:26 UTC)
Expired: May 24, 2011, 10:30 PM CDT
In force: 64 min
Issued by: the Storm Prediction Center

All 23 counties

Butler County, KS, Chase County, KS, Clay County, KS, Coffey County, KS, Cowley County, KS, Elk County, KS, Geary County, KS, Greenwood County, KS, Jackson County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, Montgomery County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wilson County, KS, Woodson County, KS

The radar

The Topeka radar (KTWX), 63 km from the middle of the area, began a volume at 02:28 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

Topeka, KS (KTOP), launched 00:00Z, 2.4 hours before the alert went out and 100 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: 1376 J/kg
Mixed-layer CIN: -162 J/kg
Mixed-layer LCL: 683 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 302 m²/s²
0-3 km storm-relative helicity: 400 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

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 24, 7:07 PM CDT	Mesoscale Discussion	SPC	Bourbon, Cherokee, Crawford, Doniphan, Johnson, Leavenworth and 3 more	53 min
May 24, 7:26 PM CDT	Tornado Watch	SPC	Atchison, Bourbon, Cherokee, Crawford, Doniphan, Johnson and 4 more	7 hr
May 25, 10:37 AM CDT	Tornado Watch	SPC	Johnson, Leavenworth, Miami, Wyandotte	7 hr

Nearby

Mesoscale Discussions in Kansas, 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.