Alert archive / South Carolina / Heat Advisories in 2011

Heat Advisory 5, NWS Charleston, SC

June 23, 2011Berkeley County, Colleton County, Dorchester County, South Carolina

NWS Charleston, SC issued this heat advisory at Jun 23, 2011, 3:23 AM EDT for Berkeley County, Colleton County, Dorchester County, South Carolina. It took effect at Jun 23, 2011, 12:00 PM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jun 23, 2011, 3:23 AM EDT (07:23 UTC)
In effect from
Jun 23, 2011, 12:00 PM EDT
Expired
Jun 23, 2011, 6:06 PM EDT
In force
6 hr
Issued by
NWS Charleston, SC

Counties Berkeley County, SC, Colleton County, SC, Dorchester County, SC

The radar

The Charleston,SC radar (KCLX), 79 km from the middle of the area, began a volume at 07:26 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 00:00Z, 7.4 hours before the alert went out and 340 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 00:00Z on 2011-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 235 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 00:00Z on 2011-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.193958Sfc1 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
235 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1673 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
89 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 heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Charleston, SC wrote its last area forecast discussion before this heat advisory went out at Jun 23, 1:44 AM EDT, 1 hour 39 minutes earlier.

Area forecast discussion, Jun 23, 1:44 AM EDT, 1 hour 39 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 22, 7:57 PM EDT, 7 hours 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>

In the hours before

Special weather statement, Jun 22, 10:14 PM EDT, 5 hours 9 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 22, 10:43 PM EDT, 4 hours 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>

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 23, 9:31 AM EDTDense Smoke AdvisoryCHS3 hr
Jun 23, 9:33 AM EDTMarine Dense Smoke AdvisoryCHS3 hr
Jun 23, 9:33 AM EDTSmall Craft AdvisoryCHS10 hr
Jun 23, 3:57 PM EDTSpecial Weather StatementCHSChatham33 min
Jun 23, 4:00 PM EDTSpecial Marine WarningCHS37 min
Jun 23, 4:11 PM EDTSpecial Weather StatementCHSMcIntosh34 min
Jun 23, 4:42 PM EDTSpecial Weather StatementCHSLiberty33 min
Jun 23, 4:47 PM EDTSevere Thunderstorm WarningCHSChatham58 min
Jun 23, 4:51 PM EDTSpecial Marine WarningCHS84 min
Jun 23, 4:56 PM EDTSevere Thunderstorm WarningCHSBulloch, Candler, Tattnall64 min
Jun 23, 5:28 PM EDTSpecial Weather StatementCHSLiberty32 min
Jun 23, 5:42 PM EDTSevere Thunderstorm WarningCHSBulloch, Effingham63 min
Jun 23, 6:43 PM EDTSpecial Weather StatementCHSMcIntosh32 min
Jun 23, 6:52 PM EDTSevere Thunderstorm WarningCHSLiberty, McIntosh28 min
Jun 23, 6:54 PM EDTSpecial Marine WarningCHS66 min
Jun 23, 6:57 PM EDTSpecial Marine WarningCHS41 min
Jun 23, 7:04 PM EDTSpecial Weather StatementCHSChatham26 min
Jun 23, 7:41 PM EDTSpecial Marine WarningCHS2 hr
Jun 23, 3:46 PM EDTSpecial Weather StatementCHSBerkeley29 min
Jun 23, 4:04 PM EDTSpecial Weather StatementCHSCharleston26 min
Jun 23, 4:49 PM EDTSpecial Weather StatementCHSBerkeley26 min
Jun 23, 5:22 PM EDTSpecial Weather StatementCHSBeaufort23 min
Jun 23, 5:24 PM EDTSpecial Weather StatementCHSCharleston36 min
Jun 23, 5:42 PM EDTSpecial Weather StatementCHSJasper33 min
Jun 23, 5:50 PM EDTSevere Thunderstorm WarningCHSBerkeley40 min
Jun 23, 5:55 PM EDTSevere Thunderstorm WarningCHSBeaufort, Charleston, Colleton, Dorchester, Hampton, Jasper65 min
Jun 23, 6:31 PM EDTSevere Thunderstorm WarningCHSBeaufort, Charleston, Colleton, Jasper59 min
Jun 23, 6:35 PM EDTSpecial Weather StatementCHSCharleston25 min
Jun 23, 6:47 PM EDTSevere Thunderstorm WarningCHSBerkeley, Charleston45 min

Nearby

Heat Advisories in South Carolina, 2011Heat Advisories in Georgia, 2011Every heat advisory in 2011

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.