Alert archive / Kentucky / Mesoscale Discussions in 2017

Mesoscale Discussion 799

May 20, 20174 states

The Storm Prediction Center issued this mesoscale discussion at May 20, 2017, 12:13 PM EDT for 4 states. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: May 20, 2017, 12:13 PM EDT (16:13 UTC)
Expired: May 20, 2017, 1:45 PM EDT
In force: 92 min
Issued by: the Storm Prediction Center
Chance of a watch: 40%

All 80 counties

Bartholomew County, IN, Brown County, IN, Clark County, IN, Crawford County, IN, Dearborn County, IN, Decatur County, IN, Dubois County, IN, Fayette County, IN, Floyd County, IN, Franklin County, IN, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Lawrence County, IN, Martin County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Switzerland County, IN, Union County, IN, Warrick County, IN, Washington County, IN, Boone County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Campbell County, KY, Carroll County, KY, Christian County, KY, Daviess County, KY, Edmonson County, KY, Franklin County, KY, Gallatin County, KY, Grant County, KY, Grayson County, KY, Hancock County, KY, Hardin County, KY, Hart County, KY, Henderson County, KY, Henry County, KY, Hopkins County, KY, Jefferson County, KY, Kenton County, KY, Larue County, KY, Logan County, KY, Lyon County, KY, McLean County, KY, Meade County, KY, Muhlenberg County, KY, Nelson County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Todd County, KY, Trigg County, KY, Trimble County, KY, Warren County, KY, Webster County, KY, Butler County, OH, Clermont County, OH, Hamilton County, OH, Cheatham County, TN, Dickson County, TN, Henry County, TN, Houston County, TN, Humphreys County, TN, Montgomery County, TN, Robertson County, TN, Stewart County, TN

The radar

The Louisville radar (KLVX), 70 km from the middle of the area, began a volume at 16:15 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 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, 4:23 PM EDT	Severe Thunderstorm Watch	SPC	Clark, Crawford, Floyd, Harrison, Jefferson, Orange and 3 more	7 hr
May 20, 6:42 PM EDT	Mesoscale Discussion	SPC	Bartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 22 more	2 hr
May 20, 7:07 PM EDT	Mesoscale Discussion	SPC	Adams, Benton, Blackford, Boone, Carroll, Cass and 31 more	2 hr
May 19, 10:18 PM EDT	Mesoscale Discussion	SPC	Breathitt, Clay, Floyd, Jackson, Johnson, Knott and 16 more	87 min
May 20, 2:45 AM EDT	Mesoscale Discussion	SPC	Ballard	90 min

Nearby

Mesoscale Discussions in Kentucky, 2017 Mesoscale Discussions in Indiana, 2017 Mesoscale Discussions in Tennessee, 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; radar from the NEXRAD Level II archive.