Alert archive / Kansas / Mesoscale Discussions in 2018

Mesoscale Discussion 559

May 28, 201816 counties in Kansas; Beaver County, Texas County, Oklahoma; 13 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 28, 2018, 6:10 PM CDT for 16 counties in Kansas; Beaver County, Texas County, Oklahoma; 13 counties in Texas. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued
May 28, 2018, 6:10 PM CDT (23:10 UTC)
Expired
May 28, 2018, 7:45 PM CDT
In force
95 min
Issued by
the Storm Prediction Center
All 31 counties

Clark County, KS, Edwards County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Meade County, KS, Morton County, KS, Pawnee County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Beaver County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Gray County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 149 km from the middle of the area, began a volume at 23:14 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.2 hours before the alert went out and 149 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, Amarillo Airport, TX at 12:00Z on 2018-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1181 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, Amarillo Airport, TX at 12:00Z on 2018-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 279 square meters per square second.193958Sfc1 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
1181 J/kg
Mixed-layer CIN
-256 J/kg
Mixed-layer LCL
1646 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
279 m²/s²
0-3 km storm-relative helicity
273 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

<!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 28, 1:46 PM CDTMesoscale DiscussionSPCGove, Graham, Logan, Phillips, Rooks, Sheridan and 4 more59 min
May 28, 2:12 PM CDTTornado WatchSPCCheyenne, Decatur, Ellis, Gove, Graham, Greeley and 19 more8 hr
May 28, 2:21 PM CDTMesoscale DiscussionSPCGrant, Gray, Haskell, Kearny, Meade, Morton and 3 more84 min
May 28, 3:17 PM CDTSevere Thunderstorm WatchSPCClark, Edwards, Finney, Ford, Grant, Gray and 11 more10 hr
May 28, 5:54 PM CDTMesoscale DiscussionSPCCheyenne, Gove, Graham, Greeley, Logan, Phillips and 9 more96 min

Nearby

Mesoscale Discussions in Kansas, 2018Mesoscale Discussions in Texas, 2018Mesoscale Discussions in Oklahoma, 2018Every mesoscale discussion in 2018

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.