Alert archive / South Dakota / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 86, NWS Aberdeen, SD

July 27, 1995Corson County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 27, 1995, 1:11 AM MDT for Corson County, South Dakota. It was in force for 64 min.

The area

The counties it named.

The facts

Issued: Jul 27, 1995, 1:11 AM MDT (07:11 UTC)
Expired: Jul 27, 1995, 2:15 AM MDT
In force: 64 min
Issued by: NWS Aberdeen, SD
Area: Whole counties

County Corson County, SD

The radar

The Bismarck radar (KBIS), 123 km from the middle of the area, began a volume at 07:15 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 7.2 hours before the alert went out and 124 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: 2335 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 1652 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.2

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, Jul 26, 8:20 PM MDT, 4 hours 51 minutes before

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Special weather statement, Jul 26, 8:31 PM MDT, 4 hours 40 minutes before

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Special weather statement, Jul 26, 8:31 PM MDT, 4 hours 40 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.
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        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 Aberdeen, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 27, 12:52 AM MDT	Severe Thunderstorm Warning	ABR	Beadle, Hand, Jerauld	53 min
Jul 27, 1:08 AM MDT	Severe Thunderstorm Warning	ABR	Spink	57 min
Jul 27, 1:30 AM MDT	Severe Thunderstorm Warning	ABR	Faulk	28 min
Jul 27, 1:48 AM MDT	Severe Thunderstorm Warning	ABR	Campbell	62 min
Jul 27, 2:10 AM MDT	Severe Thunderstorm Warning	ABR	Miner	50 min
Jul 27, 2:17 AM MDT	Severe Thunderstorm Warning	ABR	Corson	25 min
Jul 27, 2:31 AM MDT	Severe Thunderstorm Warning	ABR	Walworth	59 min
Jul 27, 3:02 AM MDT	Severe Thunderstorm Warning	ABR	Kingsbury	46 min
Jul 27, 3:05 AM MDT	Severe Thunderstorm Warning	ABR	Edmunds, McPherson	60 min
Jul 27, 3:45 AM MDT	Severe Thunderstorm Warning	ABR	Hamlin, Kingsbury	45 min
Jul 27, 3:52 AM MDT	Severe Thunderstorm Warning	ABR	Faulk	48 min
Jul 27, 4:04 AM MDT	Severe Thunderstorm Warning	ABR	Brown, Spink	56 min
Jul 27, 4:08 AM MDT	Severe Thunderstorm Warning	ABR	Edmunds	32 min
Jul 27, 4:25 AM MDT	Tornado Warning	ABR	Kingsbury	50 min
Jul 27, 5:02 AM MDT	Severe Thunderstorm Warning	ABR	Brown, Day, Spink	63 min
Jul 27, 5:10 AM MDT	Severe Thunderstorm Warning	ABR	Clark	50 min
Jul 27, 5:45 AM MDT	Severe Thunderstorm Warning	ABR	Codington	45 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1995 Every severe thunderstorm warning in 1995

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; radar from the NEXRAD Level II archive.