Alert archive / North Dakota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 276, NWS Bismarck, ND

September 12, 2025Morton County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Sep 12, 2025, 8:10 PM CDT for Morton County, North Dakota. It was in force for 65 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: Sep 12, 2025, 8:10 PM CDT (01:10 UTC)
Expired: Sep 12, 2025, 9:15 PM CDT
In force: 65 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

County Morton County, ND

The radar

The Bismarck radar (KBIS), 40 km from the middle of the area, began a volume at 01:11 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 Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 12, 7:14 PM CDT, 56 minutes earlier.

Area forecast discussion, Sep 12, 7:14 PM CDT, 56 minutes before

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Hazardous weather outlook, Sep 12, 6:45 PM CDT, 1 hour 25 minutes before

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In the hours before

Local storm report, Sep 12, 7:21 PM CDT, 49 minutes before

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Local storm report, Sep 12, 7:42 PM CDT, 28 minutes before

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      <p id="message1">
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      <p id="message2">
        Please try again in a few minutes.
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Local storm report, Sep 12, 7:53 PM CDT, 17 minutes before

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      <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.
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      <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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Special weather statement, Sep 12, 7:55 PM CDT, 15 minutes before

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<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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Local storm report, Sep 12, 8:04 PM CDT, 6 minutes before

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<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.
      </p>
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Special weather statement, Sep 12, 8:04 PM CDT, 6 minutes before

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  <title>Service Notice</title>
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</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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 12, 7:55 PM CDT	Special Weather Statement	BIS	Sioux	35 min
Sep 12, 8:04 PM CDT	Special Weather Statement	BIS	Morton	26 min
Sep 12, 8:21 PM CDT	Special Weather Statement	BIS	Divide	39 min
Sep 12, 8:33 PM CDT	Areal Flood Advisory	BIS	Sioux	3 hr
Sep 12, 8:44 PM CDT	Special Weather Statement	BIS	Sioux	31 min
Sep 12, 8:52 PM CDT	Special Weather Statement	BIS	Oliver	23 min
Sep 12, 9:32 PM CDT	Special Weather Statement	BIS	Divide	28 min
Sep 12, 10:42 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, Mountrail	48 min
Sep 12, 11:33 PM CDT	Special Weather Statement	BIS	Dunn	27 min
Sep 12, 11:56 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail	28 min
Sep 13, 12:12 AM CDT	Special Weather Statement	BIS	Golden Valley	33 min
Sep 13, 12:17 AM CDT	Areal Flood Advisory	BIS	Dunn, McKenzie	5 hr
Sep 13, 12:45 AM CDT	Special Weather Statement	BIS	Golden Valley	30 min
Sep 13, 1:37 AM CDT	Special Weather Statement	BIS	Billings	23 min
Sep 13, 2:55 AM CDT	Special Weather Statement	BIS	Dunn	35 min
Sep 13, 3:32 AM CDT	Special Weather Statement	BIS	Dunn	28 min
Sep 13, 4:19 AM CDT	Special Weather Statement	BIS	Mountrail	26 min
Sep 13, 5:05 AM CDT	Areal Flood Advisory	BIS	Mountrail	4 hr
Sep 13, 5:56 AM CDT	Special Weather Statement	BIS	Mountrail	34 min
Sep 13, 8:55 AM CDT	Areal Flood Advisory	BIS	Burke	6 hr
Sep 13, 6:22 PM CDT	Areal Flood Advisory	BIS	McKenzie	3 hr
Sep 13, 6:43 PM CDT	Areal Flood Advisory	BIS	Mountrail, Williams	3 hr

Nearby

Severe Thunderstorm Warnings in North Dakota, 2025 Every severe thunderstorm warning in 2025

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.