Alert archive / South Dakota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 237, NWS Rapid City, SD

July 26, 2001Meade County, Ziebach County, South Dakota

NWS Rapid City, SD issued this severe thunderstorm warning at Jul 26, 2001, 4:30 AM MDT for Meade County, Ziebach County, South Dakota. It was in force for 60 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: Jul 26, 2001, 4:30 AM MDT (10:30 UTC)
Expired: Jul 26, 2001, 5:30 AM MDT
In force: 60 min
Issued by: NWS Rapid City, SD
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Meade County, SD, Ziebach County, SD

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 10.5 hours before the alert went out and 95 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: 1880 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 542 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 5.9

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.

NWS Rapid City, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 26, 2:00 AM MDT, 2 hours 30 minutes earlier.

Area forecast discussion, Jul 26, 2:00 AM MDT, 2 hours 30 minutes before

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In the hours before

Local storm report, Jul 26, 12:18 AM MDT, 4 hours 12 minutes before

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<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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The office that day

Everything else NWS Rapid City, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 25, 6:05 PM MDT	Tornado Warning	UNR	Bennett	55 min
Jul 25, 6:59 PM MDT	Tornado Warning	UNR	Bennett	46 min
Jul 26, 4:00 AM MDT	Severe Thunderstorm Warning	UNR	Meade	30 min
Jul 26, 7:40 AM MDT	Severe Thunderstorm Warning	UNR	Ziebach	65 min
Jul 26, 5:05 PM MDT	Severe Thunderstorm Warning	UNR	Lawrence	25 min
Jul 26, 5:12 PM MDT	Severe Thunderstorm Warning	UNR	Butte	63 min
Jul 26, 1:07 AM MDT	Severe Thunderstorm Warning	UNR	Crook	38 min
Jul 26, 4:34 PM MDT	Tornado Warning	UNR	Campbell	41 min
Jul 26, 5:00 PM MDT	Tornado Warning	UNR	Crook	45 min
Jul 26, 5:14 PM MDT	Tornado Warning	UNR	Campbell	31 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2001 Every severe thunderstorm warning in 2001

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.