Alert archive / South Dakota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 136, NWS Sioux Falls, SD

July 17, 2020Bon Homme County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 17, 2020, 8:01 AM CDT for Bon Homme County, South Dakota. 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: Jul 17, 2020, 8:01 AM CDT (13:01 UTC)
Expired: Jul 17, 2020, 8:30 AM CDT
In force: 29 min
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Bon Homme County, SD

The radar

The Sioux Falls radar (KFSD), 115 km from the middle of the area, began a volume at 13:01 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.

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 Sioux Falls, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 17, 6:32 AM CDT, 1 hour 29 minutes earlier.

Area forecast discussion, Jul 17, 6:32 AM CDT, 1 hour 29 minutes before

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Hazardous weather outlook, Jul 17, 5:29 AM CDT, 2 hours 32 minutes before

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  <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 Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 17, 4:05 AM CDT	Excessive Heat Watch	FSD	Bon Homme, Clay, Hanson, Hutchinson, Lincoln, McCook and 4 more	11 hr
Jul 17, 8:26 AM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Yankton	49 min
Jul 17, 8:59 AM CDT	Severe Thunderstorm Warning	FSD	Hanson, Hutchinson, McCook	46 min
Jul 17, 2:36 PM CDT	Excessive Heat Warning	FSD	Bon Homme, Clay, Hutchinson, Lincoln, Minnehaha, Turner and 2 more	29 hr
Jul 17, 2:36 PM CDT	Heat Advisory	FSD	Brookings, Charles Mix, Davison, Douglas, Hanson, Lake and 4 more	25 hr

Nearby

Severe Thunderstorm Warnings in South Dakota, 2020 Every severe thunderstorm warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.