Alert archive / Kansas / Mesoscale Discussions in 2019

Mesoscale Discussion 839

May 27, 201919 counties in Kansas; 16 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 27, 2019, 7:34 PM CDT for 19 counties in Kansas; 16 counties in Nebraska. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued: May 27, 2019, 7:34 PM CDT (00:34 UTC)
Expired: May 27, 2019, 8:30 PM CDT
In force: 56 min
Issued by: the Storm Prediction Center
Chance of a watch: 80%

All 35 counties

Clay County, KS, Cloud County, KS, Ellis County, KS, Graham County, KS, Jewell County, KS, Lane County, KS, Lincoln County, KS, Mitchell County, KS, Ness County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Republic County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Smith County, KS, Trego County, KS, Washington County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Jefferson County, NE, Kearney County, NE, Nuckolls County, NE, Phelps County, NE, Saline County, NE, Thayer County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 81 km from the middle of the area, began a volume at 00:34 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.6 hours before the alert went out and 219 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: 309 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 1328 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.3

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.

Issued	Product	Office	Counties	Lasted
May 27, 8:02 PM CDT	Severe Thunderstorm Watch	SPC	Jewell, Mitchell, Osborne, Phillips, Rooks, Smith	6 hr
May 27, 10:55 PM CDT	Severe Thunderstorm Watch	SPC	Brown, Marshall, Nemaha, Republic, Washington	7 hr
May 27, 11:42 PM CDT	Mesoscale Discussion	SPC	Republic	63 min
May 28, 1:23 AM CDT	Mesoscale Discussion	SPC	Atchison, Doniphan	2 hr
May 28, 1:55 AM CDT	Severe Thunderstorm Watch	SPC	Decatur, Norton, Rawlins	4 hr
May 28, 9:39 AM CDT	Mesoscale Discussion	SPC	Barber, Barton, Clay, Cloud, Comanche, Dickinson and 19 more	96 min
May 28, 12:04 PM CDT	Mesoscale Discussion	SPC	Anderson, Atchison, Brown, Chase, Coffey, Dickinson and 20 more	86 min
May 28, 1:56 PM CDT	Tornado Watch	SPC	Anderson, Atchison, Clay, Cloud, Coffey, Dickinson and 21 more	8 hr
May 28, 2:02 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Butler, Chase, Cowley, Elk and 13 more	88 min
May 28, 2:52 PM CDT	Tornado Watch	SPC	Barton, Butler, Chase, Chautauqua, Cowley, Elk and 14 more	7 hr
May 28, 2:55 PM CDT	Mesoscale Discussion	SPC	Brown, Nemaha	95 min
May 28, 3:13 PM CDT	Severe Thunderstorm Watch	SPC	Brown, Cloud, Marshall, Nemaha, Republic, Washington	7 hr
May 28, 3:23 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Ellis, Gove, Graham, Greeley and 15 more	3 hr
May 28, 4:03 PM CDT	Severe Thunderstorm Watch	SPC	Ellis, Gove, Graham, Greeley, Lane, Logan and 8 more	5 hr
May 28, 5:12 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Douglas, Franklin, Jackson and 7 more	93 min
May 28, 5:33 PM CDT	Mesoscale Discussion	SPC	Butler, Chase, Clay, Cloud, Cowley, Dickinson and 13 more	87 min
May 28, 5:38 PM CDT	Tornado Watch	SPC	Jewell, Mitchell, Osborne, Phillips, Rooks, Smith	3 hr
May 28, 6:26 PM CDT	Mesoscale Discussion	SPC	Clay, Cloud, Jewell, Mitchell, Republic, Washington	94 min
May 27, 8:47 PM CDT	Mesoscale Discussion	SPC	Arthur, Buffalo, Chase, Custer, Dawson, Dundy and 13 more	118 min
May 28, 4:58 AM CDT	Mesoscale Discussion	SPC	Cass, Johnson, Nemaha, Otoe, Richardson	2 hr

Nearby

Mesoscale Discussions in Kansas, 2019 Mesoscale Discussions in Nebraska, 2019 Every mesoscale discussion in 2019

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.