Alert archive / Mississippi / Tornado Warnings in 1991

Tornado Warning 26, NWS Jackson, MS

May 6, 1991Smith County, Mississippi

NWS Jackson, MS issued this tornado warning at May 6, 1991, 12:40 AM CDT for Smith County, Mississippi. It was in force for 35 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 6, 1991, 12:40 AM CDT (05:40 UTC)
Expired: May 6, 1991, 1:15 AM CDT
In force: 35 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Smith County, MS

What was reported inside it

Time	Report	Where	Remark
May 6, 12:45 AM CDT	Thunderstorm Wind 0	Smith, MS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 5.7 hours before the alert went out and 197 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: 1927 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 884 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 55 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 tornado 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, May 5, 6:44 PM CDT, 5 hours 56 minutes before

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Local storm report, May 5, 6:55 PM CDT, 5 hours 45 minutes before

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  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <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.
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The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 8:02 PM CDT	Tornado Warning	JAN	Humphreys, Sunflower	43 min
May 5, 9:45 PM CDT	Severe Thunderstorm Warning	JAN	Adams	45 min
May 6, 12:01 AM CDT	Severe Thunderstorm Warning	JAN	Rankin	29 min
May 6, 12:27 AM CDT	Severe Thunderstorm Warning	JAN	Smith	48 min
May 6, 12:51 AM CDT	Severe Thunderstorm Warning	JAN	Jasper	54 min

Nearby

Tornado Warnings in Mississippi, 1991 Every tornado warning in 1991 Tornadoes in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.