Alert archive / Louisiana / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 140, NWS New Orleans, LA

June 14, 2008Washington Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jun 14, 2008, 3:31 PM CDT for Washington Parish, Louisiana. It was in force for 29 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 14, 2008, 3:31 PM CDT (20:31 UTC)
Expired: Jun 14, 2008, 4:00 PM CDT
In force: 29 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon

County Washington Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.5 hours before the alert went out and 75 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: 2545 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 579 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: -11 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 New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 14, 3:28 PM CDT, 3 minutes earlier.

Area forecast discussion, Jun 14, 3:28 PM CDT, 3 minutes before

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In the hours before

Special weather statement, Jun 14, 12:34 PM CDT, 2 hours 57 minutes before

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Special weather statement, Jun 14, 12:34 PM CDT, 2 hours 57 minutes before

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Special weather statement, Jun 14, 1:46 PM CDT, 1 hour 45 minutes before

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Special weather statement, Jun 14, 2:16 PM CDT, 1 hour 15 minutes before

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<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.
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The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 14, 2:36 PM CDT	Special Marine Warning	LIX		54 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2008 Every severe thunderstorm warning in 2008

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.