Alert archive / North Carolina / Mesoscale Discussions in 2012
Mesoscale Discussion 1527
The Storm Prediction Center issued this mesoscale discussion at Jul 21, 2012, 2:17 PM EDT for 92 counties in North Carolina; 24 counties in South Carolina; 7 counties in Virginia. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2012, 2:17 PM EDT (18:17 UTC)
- Expired
- Jul 21, 2012, 4:45 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 123 counties
Alamance County, NC, Alexander County, NC, Anson County, NC, Avery County, NC, Beaufort County, NC, Bertie County, NC, Bladen County, NC, Brunswick County, NC, Buncombe County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Camden County, NC, Carteret County, NC, Caswell County, NC, Catawba County, NC, Chatham County, NC, Chowan County, NC, Cleveland County, NC, Columbus County, NC, Craven County, NC, Cumberland County, NC, Currituck County, NC, Dare County, NC, Davidson County, NC, Davie County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Forsyth County, NC, Franklin County, NC, Gaston County, NC, Gates County, NC, Granville County, NC, Greene County, NC, Guilford County, NC, Halifax County, NC, Harnett County, NC, Haywood County, NC, Henderson County, NC, Hertford County, NC, Hoke County, NC, Hyde County, NC, Iredell County, NC, Jackson County, NC, Johnston County, NC, Jones County, NC, Lee County, NC, Lenoir County, NC, Lincoln County, NC, Martin County, NC, McDowell County, NC, Mecklenburg County, NC, Mitchell County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, New Hanover County, NC, Northampton County, NC, Onslow County, NC, Orange County, NC, Pamlico County, NC, Pasquotank County, NC, Pender County, NC, Perquimans County, NC, Person County, NC, Pitt County, NC, Polk County, NC, Randolph County, NC, Richmond County, NC, Robeson County, NC, Rockingham County, NC, Rowan County, NC, Rutherford County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Stokes County, NC, Surry County, NC, Transylvania County, NC, Tyrrell County, NC, Union County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Washington County, NC, Watauga County, NC, Wayne County, NC, Wilkes County, NC, Wilson County, NC, Yadkin County, NC, Yancey County, NC, Anderson County, SC, Cherokee County, SC, Chester County, SC, Chesterfield County, SC, Darlington County, SC, Dillon County, SC, Fairfield County, SC, Florence County, SC, Greenville County, SC, Horry County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Marlboro County, SC, Newberry County, SC, Pickens County, SC, Richland County, SC, Spartanburg County, SC, Sumter County, SC, Union County, SC, York County, SC, City of Danville, VA, City of Emporia, VA, City of Franklin, VA, City of Martinsville, VA, Greensville County, VA, Henry County, VA, Mecklenburg County, VA
The radar
The Raleigh/Durham radar (KRAX), 58 km from the middle of the area, began a volume at 18:20 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
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.3 hours before the alert went out and 124 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.
- Mixed-layer CAPE
- 679 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 870 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
<!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>Nearby
Mesoscale Discussions in North Carolina, 2012Mesoscale Discussions in South Carolina, 2012Mesoscale Discussions in Virginia, 2012Every mesoscale discussion in 2012
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.