Alert archive / Tennessee / Mesoscale Discussions in 2026

Mesoscale Discussion 2011

August 17, 20265 states

The Storm Prediction Center issued this mesoscale discussion at Aug 17, 2026, 1:49 PM EDT for 5 states. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued
Aug 17, 2026, 1:49 PM EDT (17:49 UTC)
Expired
Aug 17, 2026, 3:45 PM EDT
In force
116 min
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch possible
Chance of a watch
60%
All 52 counties

Bell County, KY, Harlan County, KY, Letcher County, KY, Pike County, KY, Ashe County, NC, Madison County, NC, Swain County, NC, Anderson County, TN, Bledsoe County, TN, Blount County, TN, Campbell County, TN, Carter County, TN, Claiborne County, TN, Cocke County, TN, Cumberland County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hancock County, TN, Hawkins County, TN, Jefferson County, TN, Johnson County, TN, Knox County, TN, Loudon County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Morgan County, TN, Rhea County, TN, Roane County, TN, Scott County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Union County, TN, Van Buren County, TN, Washington County, TN, White County, TN, Bland County, VA, Buchanan County, VA, City of Bristol, VA, City of Norton, VA, Dickenson County, VA, Lee County, VA, Russell County, VA, Scott County, VA, Smyth County, VA, Tazewell County, VA, Washington County, VA, Wise County, VA, Wythe County, VA, McDowell County, WV

The radar

The Knoxville radar (KMRX), 52 km from the middle of the area, began a volume at 17:49 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 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
Aug 17, 3:13 AM EDTMesoscale DiscussionSPCBreckinridge, Bullitt, Daviess, Grayson, Hancock, Hardin and 8 more2 hr
Aug 17, 2:35 PM EDTSevere Thunderstorm WatchSPCBell, Harlan, Knox, Whitley7 hr
Aug 17, 5:49 PM EDTMesoscale DiscussionSPCAvery, Buncombe, Cherokee, Clay, Graham, Haywood and 10 more116 min
Aug 17, 7:04 PM EDTMesoscale DiscussionSPCLincoln116 min

Nearby

Mesoscale Discussions in Tennessee, 2026Mesoscale Discussions in Virginia, 2026Mesoscale Discussions in Kentucky, 2026Every mesoscale discussion in 2026

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.