Alert archive / Louisiana / Special Weather Statements in 2012

Special Weather Statement, NWS Lake Charles, LA

May 11, 20125 parishes in Louisiana

NWS Lake Charles, LA issued this special weather statement at May 11, 2012, 10:02 AM CDT for 5 parishes in Louisiana. It was in force for 58 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: May 11, 2012, 10:02 AM CDT (15:02 UTC)
Expired: May 11, 2012, 11:00 AM CDT
In force: 58 min
Issued by: NWS Lake Charles, LA

Counties Allen Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Jefferson Davis Parish, LA, Vernon Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.0 hours before the alert went out and 121 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: 339 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 503 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 83 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.

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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 Lake Charles, LA wrote its last area forecast discussion before this special weather statement went out at May 10, 5:08 PM CDT, 16 hours 54 minutes earlier.

Area forecast discussion, May 10, 5:08 PM CDT, 16 hours 54 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 Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 11, 3:07 AM CDT	Special Marine Warning	LCH		113 min
May 11, 5:32 AM CDT	Special Marine Warning	LCH		118 min
May 11, 5:44 AM CDT	Special Marine Warning	LCH		2 hr
May 11, 6:01 AM CDT	Special Marine Warning	LCH		59 min
May 11, 6:16 AM CDT	Tornado Warning	LCH	Cameron	29 min
May 11, 7:04 AM CDT	Special Marine Warning	LCH		116 min
May 11, 8:24 AM CDT	Special Marine Warning	LCH		36 min
May 11, 8:58 AM CDT	Special Marine Warning	LCH		2 hr
May 11, 9:08 AM CDT	Special Weather Statement	LCH	Beauregard, Calcasieu	52 min
May 11, 6:25 AM CDT	Areal Flood Advisory	LCH	Jefferson	110 min

Nearby

Special Weather Statements in Louisiana, 2012 Every special weather statement 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.