Alert archive / Louisiana / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 176, NWS Jackson, MS

March 2, 1999Morehouse Parish, West Carroll Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Mar 2, 1999, 4:00 PM CST for Morehouse Parish, West Carroll Parish, Louisiana. It was in force for 50 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: Mar 2, 1999, 4:00 PM CST (22:00 UTC)
Expired: Mar 2, 1999, 4:50 PM CST
In force: 50 min
Issued by: NWS Jackson, MS
Area: Whole counties

Counties Morehouse Parish, LA, West Carroll Parish, LA

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 10.0 hours before the alert went out and 202 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: 974 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 501 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Mar 2, 10:00 AM CST, 6 hours before

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Special weather statement, Mar 2, 10:00 AM CST, 6 hours 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.
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    </section>
  </main>
  <script src="index.js"></script>
</body>
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The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 2, 11:25 AM CST	Severe Thunderstorm Warning	JAN	Bolivar	35 min
Mar 2, 2:02 PM CST	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	33 min
Mar 2, 2:15 PM CST	Severe Thunderstorm Warning	JAN	Sunflower	35 min
Mar 2, 2:25 PM CST	Severe Thunderstorm Warning	JAN	Humphreys, Yazoo	35 min
Mar 2, 2:33 PM CST	Severe Thunderstorm Warning	JAN	Sharkey	37 min
Mar 2, 2:39 PM CST	Severe Thunderstorm Warning	JAN	Leflore	36 min
Mar 2, 2:52 PM CST	Severe Thunderstorm Warning	JAN	Holmes	33 min
Mar 2, 3:00 PM CST	Severe Thunderstorm Warning	JAN	Humphreys, Yazoo	35 min
Mar 2, 3:25 PM CST	Severe Thunderstorm Warning	JAN	Carroll	50 min
Mar 2, 3:47 PM CST	Severe Thunderstorm Warning	JAN	Yazoo	48 min
Mar 2, 4:06 PM CST	Severe Thunderstorm Warning	JAN	Montgomery	49 min
Mar 2, 4:11 PM CST	Severe Thunderstorm Warning	JAN	Madison	49 min
Mar 2, 4:31 PM CST	Severe Thunderstorm Warning	JAN	Choctaw, Webster	49 min
Mar 2, 4:38 PM CST	Severe Thunderstorm Warning	JAN	Leake	67 min
Mar 2, 4:51 PM CST	Severe Thunderstorm Warning	JAN	Issaquena	34 min
Mar 2, 5:47 PM CST	Severe Thunderstorm Warning	JAN	Madison, Yazoo	48 min
Mar 2, 4:26 PM CST	Severe Thunderstorm Warning	JAN	East Carroll	49 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 1999 Every severe thunderstorm warning in 1999

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.