Alert archive / West Virginia / Mesoscale Discussions in 2016

Mesoscale Discussion 1029

June 23, 2016Boyd County, Lawrence County, Kentucky; 15 counties in Virginia; 17 counties in West Virginia

The Storm Prediction Center issued this mesoscale discussion at Jun 23, 2016, 6:15 AM EDT for Boyd County, Lawrence County, Kentucky; 15 counties in Virginia; 17 counties in West Virginia. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
Jun 23, 2016, 6:15 AM EDT (10:15 UTC)
Expired
Jun 23, 2016, 7:45 AM EDT
In force
90 min
Issued by
the Storm Prediction Center
All 34 counties

Boyd County, KY, Lawrence County, KY, Alleghany County, VA, Augusta County, VA, Bath County, VA, Botetourt County, VA, City of Buena Vista, VA, City of Covington, VA, City of Lexington, VA, City of Roanoke, VA, City of Salem, VA, City of Staunton, VA, Craig County, VA, Giles County, VA, Highland County, VA, Roanoke County, VA, Rockbridge County, VA, Boone County, WV, Cabell County, WV, Clay County, WV, Fayette County, WV, Greenbrier County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, Mercer County, WV, Monroe County, WV, Nicholas County, WV, Pocahontas County, WV, Raleigh County, WV, Summers County, WV, Wayne County, WV, Webster County, WV, Wyoming County, WV

The radar

The Charleston,WV radar (KRLX), 63 km from the middle of the area, began a volume at 10:18 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 nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 10.3 hours before the alert went out and 170 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-pSkew-T log-p diagram, Roanoke, VA at 00:00Z on 2016-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 47 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 00:00Z on 2016-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
47 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
1392 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

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.

IssuedProductOfficeCountiesLasted
Jun 22, 10:33 PM EDTTornado WatchSPCBoone, Bracken, Campbell, Gallatin, Grant, Kenton and 4 more8 hr
Jun 23, 12:51 AM EDTMesoscale DiscussionSPCBoone, Bracken, Campbell, Gallatin, Grant, Greenup and 5 more84 min
Jun 23, 2:51 AM EDTMesoscale DiscussionSPCBoyd, Lawrence54 min
Jun 23, 3:42 AM EDTSevere Thunderstorm WatchSPCBoyd, Carter, Greenup, Lawrence4 hr
Jun 23, 4:36 AM EDTMesoscale DiscussionSPCBoone, Bracken, Campbell, Fleming, Kenton, Lewis and 3 more24 min
Jun 23, 2:26 PM EDTMesoscale DiscussionSPCAnderson, Bath, Bourbon, Boyd, Bracken, Campbell and 41 more64 min
Jun 23, 3:01 PM EDTTornado WatchSPCBath, Boone, Bourbon, Boyd, Bracken, Breathitt and 38 more7 hr
Jun 23, 3:24 PM EDTSevere Thunderstorm WatchSPCAdair, Allen, Anderson, Barren, Boyle, Breckinridge and 49 more10 hr
Jun 23, 6:57 PM EDTMesoscale DiscussionSPCBath, Bell, Boone, Bourbon, Boyd, Bracken and 52 more93 min
Jun 23, 7:17 PM EDTSevere Thunderstorm WatchSPCBell, Clay, Harlan, Knox, Laurel, Leslie and 6 more5 hr
Jun 23, 7:58 PM EDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Boyle, Breckinridge and 49 more2 hr
Jun 23, 1:43 PM EDTMesoscale DiscussionSPCAlleghany, Amherst, Appomattox, Bedford, Botetourt, Campbell and 20 more92 min
Jun 23, 3:52 PM EDTSevere Thunderstorm WatchSPCAlleghany, Amherst, Appomattox, Bath, Bedford, Bland and 36 more7 hr
Jun 23, 4:36 PM EDTMesoscale DiscussionSPCBland, Craig, Floyd, Giles, Montgomery, Pulaski and 3 more54 min

Nearby

Mesoscale Discussions in West Virginia, 2016Mesoscale Discussions in Virginia, 2016Mesoscale Discussions in Kentucky, 2016Every 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.