Alert archive / Kansas / Mesoscale Discussions in 2017

Mesoscale Discussion 867

May 27, 20177 counties in Colorado; 8 counties in Kansas; Cimarron County, Texas County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 27, 2017, 1:45 PM MDT for 7 counties in Colorado; 8 counties in Kansas; Cimarron County, Texas County, Oklahoma. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 27, 2017, 1:45 PM MDT (19:45 UTC)
Expired: May 27, 2017, 3:45 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center
Chance of a watch: 40%

Counties Baca County, CO, Bent County, CO, Crowley County, CO, Kiowa County, CO, Las Animas County, CO, Otero County, CO, Prowers County, CO, Grant County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Morton County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Cimarron County, OK, Texas County, OK

The radar

The Pueblo radar (KPUX), 158 km from the middle of the area, began a volume at 19:45 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 281May 27, 4:30 PM MDT

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 7.8 hours before the alert went out and 245 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: 618 J/kg
Mixed-layer CIN: -312 J/kg
Mixed-layer LCL: 878 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 423 m²/s²
0-3 km storm-relative helicity: 686 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.6

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 26, 7:15 PM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Cheyenne, Crowley, Elbert, Kiowa and 8 more	60 min
May 26, 9:03 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Kit Carson, Phillips, Yuma	117 min
May 27, 4:27 PM MDT	Severe Thunderstorm Watch	SPC	Baca, Bent, Las Animas, Otero, Prowers	6 hr
May 26, 6:38 PM MDT	Severe Thunderstorm Watch	SPC	Cheyenne, Decatur, Finney, Gove, Graham, Greeley and 12 more	7 hr
May 26, 10:45 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Ellis, Gove, Graham, Logan and 12 more	2 hr
May 26, 11:52 PM MDT	Severe Thunderstorm Watch	SPC	Barton, Ellis, Ellsworth, Jewell, Lincoln, Mitchell and 8 more	5 hr
May 27, 12:47 AM MDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Gove, Graham, Greeley, Lane and 10 more	88 min
May 27, 2:35 AM MDT	Mesoscale Discussion	SPC	Barton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 21 more	115 min
May 27, 8:59 AM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 20 more	2 hr
May 27, 11:13 AM MDT	Tornado Watch	SPC	Bourbon, Cherokee, Crawford, Johnson, Linn, Miami	7 hr
May 27, 12:12 PM MDT	Mesoscale Discussion	SPC	Bourbon, Cherokee, Crawford, Linn, Miami, Neosho	93 min
May 27, 1:46 PM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Coffey, Greenwood, Neosho and 1 more	59 min
May 26, 9:36 PM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Delaware, Haskell, Latimer, McIntosh and 5 more	54 min
May 26, 11:06 PM MDT	Severe Thunderstorm Watch	SPC	Delaware, Mayes	5 hr
May 27, 1:04 PM MDT	Mesoscale Discussion	SPC	Blaine, Cherokee, Craig, Creek, Delaware, Garfield and 22 more	86 min
May 27, 3:01 PM MDT	Tornado Watch	SPC	Adair, Atoka, Bryan, Carter, Cherokee, Choctaw and 40 more	10 hr
May 27, 3:51 PM MDT	Mesoscale Discussion	SPC	Carter, Cleveland, Coal, Craig, Creek, Garvin and 25 more	24 min

Nearby

Mesoscale Discussions in Kansas, 2017 Mesoscale Discussions in Colorado, 2017 Mesoscale Discussions in Oklahoma, 2017 Every mesoscale discussion in 2017

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.