Alert archive / Montana / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 3, NWS Billings, MT

May 12, 2009Big Horn County, Yellowstone County, Montana

NWS Billings, MT issued this severe thunderstorm warning at May 12, 2009, 5:57 PM MDT for Big Horn County, Yellowstone County, Montana. It was in force for 38 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: May 12, 2009, 5:57 PM MDT (23:57 UTC)
Expired: May 12, 2009, 6:35 PM MDT
In force: 38 min
Issued by: NWS Billings, MT
Area: Storm-based polygon

Counties Big Horn County, MT, Yellowstone County, MT

The radar

The Billings radar (KBLX), 59 km from the middle of the area, began a volume at 23:54 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 Billings, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at May 12, 3:30 PM MDT, 2 hours 27 minutes earlier.

Area forecast discussion, May 12, 3:30 PM MDT, 2 hours 27 minutes before

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Hazardous weather outlook, May 12, 3:47 PM MDT, 2 hours 10 minutes before

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In the hours before

Local storm report, May 12, 3:01 PM MDT, 2 hours 56 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.
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      <p id="message2">
        Please try again in a few minutes.
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      <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, May 12, 3:06 PM MDT, 2 hours 51 minutes before

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<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.
      </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>
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The office that day

Everything else NWS Billings, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 12, 2:11 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	64 min
May 12, 2:56 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	34 min
May 12, 4:01 PM MDT	High Wind Watch	BYZ	Carter, Fallon, Powder River	12 hr

Nearby

Severe Thunderstorm Warnings in Montana, 2009 Every severe thunderstorm warning in 2009

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.