Alert archive / Texas / Mesoscale Discussions in 2020

Mesoscale Discussion 658

May 21, 202029 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 21, 2020, 5:13 PM CDT for 29 counties in Texas. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: May 21, 2020, 5:13 PM CDT (22:13 UTC)
Expired: May 21, 2020, 6:45 PM CDT
In force: 92 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch possible
Chance of a watch: 40%

All 29 counties

Borden County, TX, Callahan County, TX, Coke County, TX, Concho County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Glasscock County, TX, Haskell County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Runnels County, TX, Scurry County, TX, Shackelford County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Tom Green County, TX

The radar

The Dyess AFB radar (KDYX), 135 km from the middle of the area, began a volume at 22:15 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 199May 21, 5:45 PM CDT

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 20, 7:12 PM CDT	Mesoscale Discussion	SPC	Borden, Coke, Crockett, Crosby, Dawson, Dickens and 18 more	2 hr
May 20, 9:17 PM CDT	Mesoscale Discussion	SPC	Armstrong, Borden, Briscoe, Castro, Coke, Concho and 32 more	118 min
May 21, 5:47 PM CDT	Severe Thunderstorm Watch	SPC	Callahan, Childress, Coke, Coleman, Concho, Cottle and 21 more	8 hr

Nearby

Mesoscale Discussions in Texas, 2020 Every mesoscale discussion in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.