Alert archive / North Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 135, NWS Raleigh, NC

June 20, 2014Johnston County, Nash County, Wilson County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jun 20, 2014, 3:41 PM EDT for Johnston County, Nash County, Wilson County, North Carolina. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 20, 2014, 3:41 PM EDT (19:41 UTC)
Expired: Jun 20, 2014, 4:30 PM EDT
In force: 49 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon

Counties Johnston County, NC, Nash County, NC, Wilson County, NC

The radar

The Raleigh/Durham radar (KRAX), 37 km from the middle of the area, began a volume at 19:43 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

Newport, NC (KMHX), launched 12:00Z, 7.7 hours before the alert went out and 152 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: 146 J/kg
Mixed-layer CIN: -222 J/kg
Mixed-layer LCL: 1232 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Raleigh, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 20, 3:15 PM EDT, 26 minutes earlier.

Area forecast discussion, Jun 20, 3:15 PM EDT, 26 minutes before

<!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>

Hazardous weather outlook, Jun 20, 4:16 AM EDT, 11 hours 25 minutes before

<!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>

In the hours before

Local storm report, Jun 20, 10:29 AM EDT, 5 hours 12 minutes before

<!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>

Local storm report, Jun 20, 1:10 PM EDT, 2 hours 31 minutes before

<!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>

Special weather statement, Jun 20, 3:01 PM EDT, 40 minutes before

<!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>

Special weather statement, Jun 20, 3:35 PM EDT, 6 minutes before

<!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>

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 19, 8:27 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Sampson, Wayne	78 min
Jun 19, 10:09 PM EDT	Special Weather Statement	RAH	Scotland	21 min
Jun 19, 10:17 PM EDT	Special Weather Statement	RAH	Scotland	43 min
Jun 19, 11:31 PM EDT	Special Weather Statement	RAH	Wake	59 min
Jun 19, 11:35 PM EDT	Special Weather Statement	RAH	Harnett	40 min
Jun 19, 11:43 PM EDT	Special Weather Statement	RAH	Edgecombe	47 min
Jun 19, 11:50 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Wake	55 min
Jun 19, 11:57 PM EDT	Special Weather Statement	RAH	Cumberland	63 min
Jun 20, 12:03 AM EDT	Special Weather Statement	RAH	Johnston	57 min
Jun 20, 12:23 AM EDT	Severe Thunderstorm Warning	RAH	Johnston	52 min
Jun 20, 12:32 AM EDT	Areal Flood Advisory	RAH	Johnston	3 hr
Jun 20, 12:48 AM EDT	Special Weather Statement	RAH	Sampson	57 min
Jun 20, 1:19 AM EDT	Special Weather Statement	RAH	Wayne	56 min
Jun 20, 1:25 AM EDT	Severe Thunderstorm Warning	RAH	Wayne	65 min
Jun 20, 2:02 AM EDT	Special Weather Statement	RAH	Harnett	43 min
Jun 20, 3:01 PM EDT	Special Weather Statement	RAH	Hoke, Scotland	59 min
Jun 20, 3:35 PM EDT	Special Weather Statement	RAH	Wilson	55 min
Jun 20, 3:47 PM EDT	Special Weather Statement	RAH	Alamance	73 min
Jun 20, 4:36 PM EDT	Special Weather Statement	RAH	Harnett, Lee	54 min
Jun 20, 4:52 PM EDT	Special Weather Statement	RAH	Wayne	53 min
Jun 20, 4:57 PM EDT	Special Weather Statement	RAH	Alamance, Orange	63 min
Jun 20, 5:45 PM EDT	Special Weather Statement	RAH	Wake	60 min
Jun 20, 6:05 PM EDT	Special Weather Statement	RAH	Sampson	55 min
Jun 20, 6:55 PM EDT	Special Weather Statement	RAH	Wake	65 min
Jun 20, 7:15 PM EDT	Areal Flood Advisory	RAH	Wake	2 hr

Nearby

Severe Thunderstorm Warnings in North Carolina, 2014 Every severe thunderstorm warning in 2014

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.