Alert archive / North Carolina / Mesoscale Discussions in 2019

Mesoscale Discussion 352

April 14, 20196 states

The Storm Prediction Center issued this mesoscale discussion at Apr 14, 2019, 7:12 PM EDT for 6 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Apr 14, 2019, 7:12 PM EDT (23:12 UTC)
Expired
Apr 14, 2019, 9:15 PM EDT
In force
2 hr
Issued by
the Storm Prediction Center
All 108 counties

Banks County, GA, Barrow County, GA, Clarke County, GA, Elbert County, GA, Franklin County, GA, Habersham County, GA, Hall County, GA, Hart County, GA, Jackson County, GA, Lincoln County, GA, Madison County, GA, Oconee County, GA, Oglethorpe County, GA, Rabun County, GA, Stephens County, GA, Taliaferro County, GA, Wilkes County, GA, Alexander County, NC, Alleghany County, NC, Ashe County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Caswell County, NC, Catawba County, NC, Cleveland County, NC, Davidson County, NC, Davie County, NC, Forsyth County, NC, Gaston County, NC, Guilford County, NC, Haywood County, NC, Henderson County, NC, Iredell County, NC, Jackson County, NC, Lincoln County, NC, Madison County, NC, McDowell County, NC, Mecklenburg County, NC, Mitchell County, NC, Polk County, NC, Randolph County, NC, Rockingham County, NC, Rowan County, NC, Rutherford County, NC, Stanly County, NC, Stokes County, NC, Surry County, NC, Transylvania County, NC, Union County, NC, Watauga County, NC, Wilkes County, NC, Yadkin County, NC, Yancey County, NC, Abbeville County, SC, Anderson County, SC, Cherokee County, SC, Chester County, SC, Edgefield County, SC, Fairfield County, SC, Greenville County, SC, Greenwood County, SC, Lancaster County, SC, Laurens County, SC, McCormick County, SC, Newberry County, SC, Oconee County, SC, Pickens County, SC, Saluda County, SC, Spartanburg County, SC, Union County, SC, York County, SC, Carter County, TN, Johnson County, TN, Sullivan County, TN, Unicoi County, TN, Washington County, TN, Bland County, VA, Carroll County, VA, City of Bristol, VA, City of Danville, VA, City of Galax, VA, City of Martinsville, VA, City of Radford, VA, City of Roanoke, VA, City of Salem, VA, Craig County, VA, Floyd County, VA, Franklin County, VA, Giles County, VA, Grayson County, VA, Henry County, VA, Montgomery County, VA, Patrick County, VA, Pittsylvania County, VA, Pulaski County, VA, Roanoke County, VA, Russell County, VA, Smyth County, VA, Tazewell County, VA, Washington County, VA, Wythe County, VA, McDowell County, WV, Mercer County, WV, Monroe County, WV, Summers County, WV

The radar

The Greer radar (KGSP), 84 km from the middle of the area, began a volume at 23:12 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.2 hours before the alert went out and 183 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, Greensboro/Hi Pt, NC at 12:00Z on 2019-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 59 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, Greensboro/Hi Pt, NC at 12:00Z on 2019-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 132 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
59 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
562 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
132 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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
Apr 14, 1:39 AM EDTMesoscale DiscussionSPCChattooga, Dade, Floyd, Walker66 min
Apr 14, 5:20 AM EDTMesoscale DiscussionSPCBartow, Carroll, Catoosa, Chattooga, Coweta, Dade and 11 more115 min
Apr 14, 6:36 AM EDTMesoscale DiscussionSPCBartow, Carroll, Catoosa, Chattooga, Coweta, Dade and 11 more54 min
Apr 14, 7:28 AM EDTTornado WatchSPCBanks, Barrow, Bartow, Bibb, Bleckley, Butts and 69 more7 hr
Apr 14, 8:28 AM EDTMesoscale DiscussionSPCBaker, Brooks, Calhoun, Clay, Colquitt, Cook and 15 more3 hr
Apr 14, 10:40 AM EDTTornado WatchSPCBaker, Ben Hill, Berrien, Brooks, Calhoun, Clay and 20 more6 hr
Apr 14, 11:07 AM EDTMesoscale DiscussionSPCBaker, Bibb, Butts, Calhoun, Carroll, Chattahoochee and 53 more83 min
Apr 14, 11:48 AM EDTMesoscale DiscussionSPCColumbia, Elbert, Franklin, Hart, Lincoln, McDuffie and 5 more117 min
Apr 14, 12:54 PM EDTTornado WatchSPCBaldwin, Burke, Columbia, Dodge, Elbert, Emanuel and 26 more6 hr
Apr 14, 2:07 PM EDTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Brantley, Charlton, Clinch and 9 more83 min
Apr 14, 3:00 PM EDTMesoscale DiscussionSPCCatoosa, Fannin, Gilmer, Gordon, Murray, Walker and 1 more2 hr
Apr 14, 3:02 PM EDTTornado WatchSPCAppling, Atkinson, Bacon, Brantley, Bryan, Bulloch and 17 more4 hr
Apr 14, 4:04 PM EDTMesoscale DiscussionSPCBarrow, Bartow, Carroll, Cherokee, Clayton, Cobb and 20 more116 min
Apr 14, 4:28 PM EDTSevere Thunderstorm WatchSPCBanks, Barrow, Bartow, Carroll, Cherokee, Clayton and 28 more6 hr
Apr 14, 5:43 PM EDTMesoscale DiscussionSPCEffingham2 hr
Apr 14, 2:16 PM EDTTornado WatchSPCAlamance, Alexander, Alleghany, Anson, Burke, Cabarrus and 46 more8 hr
Apr 14, 4:50 PM EDTMesoscale DiscussionSPCAlexander, Caswell, Catawba, Davidson, Davie, Forsyth and 8 more85 min
Apr 14, 6:31 PM EDTTornado WatchSPCBladen, Brunswick, Columbus, New Hanover, Pender, Robeson3 hr
Apr 14, 7:21 PM EDTSevere Thunderstorm WatchSPCAshe, Watauga5 hr
Apr 14, 2:04 AM EDTTornado WatchSPCBedford, Cannon, Coffee, Franklin, Giles, Grundy and 9 more9 hr
Apr 14, 5:49 PM EDTMesoscale DiscussionSPCAlbemarle, Amelia, Amherst, Augusta, Buckingham, Caroline and 48 more26 min
Apr 14, 6:08 PM EDTTornado WatchSPCAlbemarle, Arlington, Augusta, Clarke, Culpeper, Fairfax and 28 more9 hr
Apr 14, 6:30 PM EDTMesoscale DiscussionSPCAlleghany, Bland, Craig, Giles, Montgomery, Pulaski and 6 more90 min
Apr 14, 7:42 PM EDTMesoscale DiscussionSPCArlington, Fairfax, Fauquier, Loudoun, Prince William, City of Alexandria and 4 more63 min
Apr 14, 1:25 PM EDTMesoscale DiscussionSPCCabell, Wayne2 hr
Apr 14, 2:33 PM EDTTornado WatchSPCBoone, Cabell, Jackson, Kanawha, Lincoln, Logan and 7 more6 hr
Apr 14, 3:46 PM EDTMesoscale DiscussionSPCBrooke, Hancock, Ohio59 min
Apr 14, 4:49 PM EDTMesoscale DiscussionSPCBrooke, Cabell, Calhoun, Doddridge, Gilmer, Hancock and 17 more116 min
Apr 14, 5:57 PM EDTMesoscale DiscussionSPCBrooke, Hancock, Marion, Marshall, Monongalia, Ohio63 min
Apr 14, 6:46 PM EDTTornado WatchSPCBrooke, Hancock, Marion, Marshall, Monongalia, Ohio and 3 more8 hr
Apr 14, 7:21 PM EDTMesoscale DiscussionSPCHancock54 min

Nearby

Mesoscale Discussions in North Carolina, 2019Mesoscale Discussions in Virginia, 2019Mesoscale Discussions in South Carolina, 2019Every mesoscale discussion in 2019

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.