Alert archive / Texas / Mesoscale Discussions in 2019

Mesoscale Discussion 704

May 20, 20195 states

The Storm Prediction Center issued this mesoscale discussion at May 20, 2019, 1:15 PM MDT for 5 states. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
May 20, 2019, 1:15 PM MDT (19:15 UTC)
Expired
May 20, 2019, 2:45 PM MDT
In force
90 min
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 32 counties

Baca County, CO, Huerfano County, CO, Las Animas County, CO, Otero County, CO, Barber County, KS, Clark County, KS, Comanche County, KS, Harper County, KS, Kingman County, KS, Sumner County, KS, Colfax County, NM, Harding County, NM, Union County, NM, Alfalfa County, OK, Beaver County, OK, Cimarron County, OK, Ellis County, OK, Grant County, OK, Harper County, OK, Texas County, OK, Woods County, OK, Woodward County, OK, Dallam County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Roberts County, TX, Sherman County, TX

The radar

The Dodge City radar (KDDC), 157 km from the middle of the area, began a volume at 19:18 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, 7.3 hours before the alert went out and 163 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 2019-05-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 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 2019-05-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 261 square meters per square second.193958Sfc1 km3 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
852 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
261 m²/s²
0-3 km storm-relative helicity
390 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 20, 6:09 AM MDTSevere Thunderstorm WatchSPCBarber, Chautauqua, Comanche, Cowley, Elk, Harper and 5 more6 hr
May 20, 10:35 AM MDTMesoscale DiscussionSPCBarber, Chautauqua, Comanche, Cowley, Elk, Harper and 5 more85 min
May 20, 3:35 PM MDTMesoscale DiscussionSPCCherokee, Crawford, Labette115 min
May 20, 4:14 PM MDTTornado WatchSPCCherokee, Crawford, Labette, Montgomery8 hr
May 19, 10:56 PM MDTMesoscale DiscussionSPCCurry, Harding, Lea, Quay, Roosevelt, Union2 hr
May 20, 12:57 AM MDTSevere Thunderstorm WatchSPCChaves, Curry, De Baca, Eddy, Guadalupe, Harding and 5 more8 hr
May 20, 5:14 AM MDTMesoscale DiscussionSPCAlfalfa, Blaine, Custer, Dewey, Ellis, Garfield and 7 more2 hr
May 20, 9:41 AM MDTMesoscale DiscussionSPCBeckham, Greer, Harmon, Jackson, Roger Mills3 hr
May 20, 10:17 AM MDTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Canadian, Carter, Cleveland and 20 more2 hr
May 20, 12:21 PM MDTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Comanche, Grady, Kiowa and 3 more24 min
May 20, 12:37 PM MDTTornado Watch PDSSPCAtoka, Beckham, Blaine, Bryan, Caddo, Canadian and 41 more8 hr
May 20, 2:46 PM MDTMesoscale DiscussionSPCCanadian, Greer, Harmon, Jackson, Kingfisher, Kiowa and 1 more59 min
May 20, 4:44 PM MDTMesoscale DiscussionSPCCanadian, Greer, Harmon, Jackson, Kingfisher, Kiowa and 1 more61 min
May 19, 6:21 PM MDTMesoscale DiscussionSPCHarrison, Panola84 min
May 20, 11:36 AM MDTTornado Watch PDSSPCArmstrong, Borden, Briscoe, Childress, Collingsworth, Cottle and 34 more9 hr
May 20, 12:37 PM MDTMesoscale DiscussionSPCBriscoe, Childress, Collingsworth, Cottle, Crosby, Dickens and 11 more53 min
May 20, 4:08 PM MDTMesoscale DiscussionSPCCrane, Crockett, Glasscock, Midland, Reagan, Terrell and 1 more2 hr
May 20, 4:50 PM MDTMesoscale DiscussionSPCBorden, Childress, Collingsworth, Cottle, Crosby, Dawson and 18 more115 min

Nearby

Mesoscale Discussions in Texas, 2019Mesoscale Discussions in Oklahoma, 2019Mesoscale Discussions in Kansas, 2019Every 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.