Alert archive / South Dakota / Mesoscale Discussions in 2018

Mesoscale Discussion 1373

August 27, 20189 counties in Nebraska; 21 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Aug 27, 2018, 6:17 PM CDT for 9 counties in Nebraska; 21 counties in South Dakota. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued: Aug 27, 2018, 6:17 PM CDT (23:17 UTC)
Expired: Aug 27, 2018, 7:45 PM CDT
In force: 88 min
Issued by: the Storm Prediction Center
Chance of a watch: 60%

All 30 counties

Blaine County, NE, Boyd County, NE, Brown County, NE, Holt County, NE, Keya Paha County, NE, Logan County, NE, Loup County, NE, Rock County, NE, Thomas County, NE, Aurora County, SD, Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Haakon County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jackson County, SD, Jerauld County, SD, Jones County, SD, Lyman County, SD, Mellette County, SD, Sanborn County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD

The radar

The North Platte radar (KLNX), 157 km from the middle of the area, began a volume at 23:17 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 355Aug 27, 6:40 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
Aug 27, 11:49 AM CDT	Mesoscale Discussion	SPC	Burt, Cedar, Cuming, Dakota, Dixon, Stanton and 2 more	116 min
Aug 27, 3:46 PM CDT	Mesoscale Discussion	SPC	Blaine, Brown, Cherry, Custer, Hooker, Logan and 2 more	119 min
Aug 26, 7:37 PM CDT	Tornado Watch	SPC	Brown, Campbell, Clark, Codington, Day, Edmunds and 12 more	5 hr
Aug 26, 10:55 PM CDT	Mesoscale Discussion	SPC	Beadle, Clark, Codington, Day, Deuel, Grant and 4 more	2 hr
Aug 27, 6:42 PM CDT	Severe Thunderstorm Watch	SPC	Aurora, Beadle, Bon Homme, Brule, Buffalo, Charles Mix and 17 more	4 hr

Nearby

Mesoscale Discussions in South Dakota, 2018 Mesoscale Discussions in Nebraska, 2018 Every 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; radar from the NEXRAD Level II archive.