Alert archive / Kentucky / Mesoscale Discussions in 2016

Mesoscale Discussion 1186

July 7, 20164 states

The Storm Prediction Center issued this mesoscale discussion at Jul 7, 2016, 12:16 PM CDT for 4 states. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued: Jul 7, 2016, 12:16 PM CDT (17:16 UTC)
Expired: Jul 7, 2016, 1:15 PM CDT
In force: 59 min
Issued by: the Storm Prediction Center
Chance of a watch: 95%

All 42 counties

Edwards County, IL, Gallatin County, IL, Hardin County, IL, Johnson County, IL, Lawrence County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Wabash County, IL, White County, IL, Crawford County, IN, Dubois County, IN, Gibson County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Ballard County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Graves County, KY, Hancock County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Trigg County, KY, Union County, KY, Webster County, KY, Mississippi County, MO, New Madrid County, MO

The radar

The Paducah radar (KPAH), 48 km from the middle of the area, began a volume at 17:15 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 5.3 hours before the alert went out and 206 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 649 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 756 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 213 m²/s²
0-3 km storm-relative helicity: 376 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

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.

Issued	Product	Office	Counties	Lasted
Jul 7, 5:26 AM CDT	Mesoscale Discussion	SPC	Adams, Alexander, Calhoun, Franklin, Greene, Jackson and 10 more	2 hr
Jul 7, 6:01 AM CDT	Severe Thunderstorm Watch	SPC	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 15 more	6 hr
Jul 7, 8:10 AM CDT	Mesoscale Discussion	SPC	Adams, Alexander, Bond, Brown, Calhoun, Cass and 32 more	95 min
Jul 7, 12:39 PM CDT	Severe Thunderstorm Watch	SPC	Edwards, Gallatin, Hamilton, Hardin, Johnson, Massac and 5 more	4 hr
Jul 7, 2:21 PM CDT	Mesoscale Discussion	SPC	Dubois, Perry, Pike, Spencer, Vanderburgh, Warrick	54 min
Jul 7, 3:35 PM CDT	Severe Thunderstorm Watch	SPC	Bell, Breathitt, Clay, Estill, Harlan, Jackson and 13 more	4 hr
Jul 7, 5:37 PM CDT	Mesoscale Discussion	SPC	Bell, Clay, Harlan, Knox, Laurel, Leslie and 1 more	53 min
Jul 7, 1:22 AM CDT	Mesoscale Discussion	SPC	Adair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 20 more	83 min
Jul 7, 1:37 AM CDT	Severe Thunderstorm Watch	SPC	Adair, Andrew, Atchison, Bates, Buchanan, Caldwell and 31 more	6 hr
Jul 7, 4:27 AM CDT	Mesoscale Discussion	SPC	Adair, Andrew, Buchanan, Caldwell, Carroll, Cass and 27 more	93 min

Nearby

Mesoscale Discussions in Kentucky, 2016 Mesoscale Discussions in Illinois, 2016 Mesoscale Discussions in Indiana, 2016 Every mesoscale discussion in 2016

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.