Alert archive / Texas / Special Weather Statements in 2015

Special Weather Statement, NWS San Angelo, TX

April 24, 2015Nolan County, Texas

NWS San Angelo, TX issued this special weather statement at Apr 24, 2015, 10:21 AM CDT for Nolan County, Texas. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 24, 2015, 10:21 AM CDT (15:21 UTC)
Expired
Apr 24, 2015, 10:45 AM CDT
In force
24 min
Issued by
NWS San Angelo, TX

County Nolan County, TX

The radar

The San Angelo radar (KSJT), 102 km from the middle of the area, began a volume at 15:24 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

Midland Regional, TX (KMAF), launched 12:00Z, 3.4 hours before the alert went out and 177 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, Midland Regional, TX at 12:00Z on 2015-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Midland Regional, TX at 12:00Z on 2015-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1567 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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>

What forecasters said that day

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

NWS San Angelo, TX wrote its last area forecast discussion before this special weather statement went out at Apr 24, 6:36 AM CDT, 3 hours 45 minutes earlier.

Area forecast discussion, Apr 24, 6:36 AM CDT, 3 hours 45 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, Apr 24, 4:35 AM CDT, 5 hours 46 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, Apr 24, 9:00 AM CDT, 1 hour 21 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, Apr 24, 10:21 AM CDT, 0 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 San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 24, 9:00 AM CDTSpecial Weather StatementSJTSterling45 min
Apr 24, 1:47 PM CDTSpecial Weather StatementSJTHaskell, Jones28 min
Apr 24, 2:04 PM CDTSpecial Weather StatementSJTCoke26 min
Apr 24, 2:31 PM CDTSevere Thunderstorm WarningSJTCoke, Nolan, Runnels44 min
Apr 24, 2:43 PM CDTSpecial Weather StatementSJTIrion32 min
Apr 24, 2:59 PM CDTSevere Thunderstorm WarningSJTCoke, Runnels, Taylor46 min
Apr 24, 3:06 PM CDTSpecial Weather StatementSJTCoke39 min
Apr 24, 3:15 PM CDTSevere Thunderstorm WarningSJTCoke, Runnels45 min
Apr 24, 3:30 PM CDTSevere Thunderstorm WarningSJTCallahan, Coleman, Runnels, Taylor45 min
Apr 24, 3:36 PM CDTTornado WarningSJTCallahan, Coleman, Runnels, Taylor24 min
Apr 24, 3:45 PM CDTSevere Thunderstorm WarningSJTColeman, Runnels30 min
Apr 24, 3:54 PM CDTSpecial Weather StatementSJTTom Green51 min
Apr 24, 3:56 PM CDTTornado WarningSJTBrown, Callahan, Coleman49 min
Apr 24, 4:00 PM CDTSevere Thunderstorm WarningSJTIrion, Tom Green45 min
Apr 24, 4:09 PM CDTSevere Thunderstorm WarningSJTBrown, Callahan, Coleman51 min
Apr 24, 4:25 PM CDTSevere Thunderstorm WarningSJTColeman, Concho, Runnels, Tom Green50 min
Apr 24, 4:50 PM CDTSpecial Weather StatementSJTTom Green40 min
Apr 24, 5:05 PM CDTSevere Thunderstorm WarningSJTBrown, Coleman40 min
Apr 24, 5:27 PM CDTSpecial Weather StatementSJTSchleicher33 min
Apr 24, 5:29 PM CDTSpecial Weather StatementSJTTom Green31 min
Apr 24, 5:30 PM CDTSpecial Weather StatementSJTConcho30 min
Apr 24, 5:36 PM CDTSpecial Weather StatementSJTBrown39 min
Apr 24, 6:09 PM CDTSpecial Weather StatementSJTMcCulloch36 min
Apr 24, 6:34 PM CDTSpecial Weather StatementSJTMcCulloch41 min
Apr 24, 6:38 PM CDTSpecial Weather StatementSJTBrown37 min
Apr 24, 6:45 PM CDTSpecial Weather StatementSJTMenard30 min

Nearby

Special Weather Statements in Texas, 2015Every special weather statement in 2015

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.