Alert archive / Kansas / Mesoscale Discussions in 2011

Mesoscale Discussion 814

May 19, 20114 states

The Storm Prediction Center issued this mesoscale discussion at May 19, 2011, 3:44 PM CDT for 4 states. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued
May 19, 2011, 3:44 PM CDT (20:44 UTC)
Expired
May 19, 2011, 4:45 PM CDT
In force
61 min
Issued by
the Storm Prediction Center
All 87 counties

Barber County, KS, Barton County, KS, Butler County, KS, Clark County, KS, Clay County, KS, Cloud County, KS, Comanche County, KS, Decatur County, KS, Dickinson County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Harper County, KS, Harvey County, KS, Hodgeman County, KS, Jewell County, KS, Kingman County, KS, Kiowa County, KS, Lincoln County, KS, Marion County, KS, McPherson County, KS, Mitchell County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Phillips County, KS, Pratt County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Sheridan County, KS, Smith County, KS, Stafford County, KS, Sumner County, KS, Trego County, KS, Washington County, KS, Franklin County, NE, Furnas County, NE, Harlan County, NE, Nuckolls County, NE, Red Willow County, NE, Thayer County, NE, Webster County, NE, Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Greer County, OK, Harper County, OK, Jackson County, OK, Kingfisher County, OK, Kiowa County, OK, Major County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Baylor County, TX, Cottle County, TX, Foard County, TX, Hardeman County, TX, Haskell County, TX, Kent County, TX, King County, TX, Knox County, TX, Stonewall County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Vance AFB radar (KVNX), 152 km from the middle of the area, began a volume at 20:45 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

Dodge City, (KDDC), launched 12:00Z, 8.7 hours before the alert went out and 175 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-pSkew-T log-p diagram, Dodge City, at 12:00Z on 2011-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1795 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2011-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 370 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1795 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
572 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
370 m²/s²
0-3 km storm-relative helicity
324 m²/s²
Significant tornado parameter
4.4
Supercell composite
15.9

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.

IssuedProductOfficeCountiesLasted
May 18, 10:25 PM CDTMesoscale DiscussionSPCAllen, Barton, Butler, Chase, Chautauqua, Cheyenne and 60 more2 hr
May 19, 1:12 PM CDTMesoscale DiscussionSPCBarber, Barton, Butler, Comanche, Cowley, Dickinson and 26 more63 min
May 19, 1:43 PM CDTTornado WatchSPCBarber, Barton, Butler, Chase, Clark, Clay and 43 more7 hr
May 19, 2:24 PM CDTMesoscale DiscussionSPCFinney, Grant, Greeley, Hamilton, Haskell, Kearny and 7 more66 min
May 19, 5:42 PM CDTMesoscale DiscussionSPCBarber, Barton, Clark, Clay, Cloud, Comanche and 37 more2 hr
May 19, 6:38 PM CDTMesoscale DiscussionSPCMarshall, Nemaha, Washington97 min
May 19, 12:30 PM CDTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Comanche, Custer, Dewey and 12 more30 min
May 19, 12:46 PM CDTTornado WatchSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Cleveland and 28 more9 hr
May 19, 5:21 PM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Caddo, Canadian, Cleveland, Comanche and 18 more84 min

Nearby

Mesoscale Discussions in Kansas, 2011Mesoscale Discussions in Oklahoma, 2011Mesoscale Discussions in Texas, 2011Every 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.