Alert archive / Montana / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 33, NWS Glasgow, MT

July 4, 2020McCone County, Valley County, Montana

NWS Glasgow, MT issued this severe thunderstorm warning at Jul 4, 2020, 8:31 PM MDT for McCone County, Valley County, Montana. It was in force for 37 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 4, 2020, 8:31 PM MDT (02:31 UTC)
Expired
Jul 4, 2020, 9:08 PM MDT
In force
37 min
Issued by
NWS Glasgow, MT
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties McCone County, MT, Valley County, MT

The radar

The Glasgow radar (KGGW), 37 km from the middle of the area, began a volume at 02:32 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 4, 5:39 PM MDTSevere Thunderstorm WatchSPC6 hr

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 Glasgow, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 4, 8:16 PM MDT, 15 minutes earlier.

Area forecast discussion, Jul 4, 8:16 PM MDT, 15 minutes before
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In the hours before

Special weather statement, Jul 4, 7:28 PM MDT, 1 hour 3 minutes before
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    <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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
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Special weather statement, Jul 4, 7:49 PM MDT, 42 minutes before
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    <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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Special weather statement, Jul 4, 8:06 PM MDT, 25 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>
    </section>
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Local storm report, Jul 4, 8:13 PM MDT, 18 minutes before
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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>
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</html>
Local storm report, Jul 4, 8:25 PM MDT, 6 minutes before
<!doctype html>
<html lang="en">
<head>
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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.
      </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>
Special weather statement, Jul 4, 8:30 PM MDT, 1 minute 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.
      </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 Glasgow, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 4, 6:39 PM MDTSpecial Weather StatementGGWPhillips66 min
Jul 4, 7:04 PM MDTSpecial Weather StatementGGWPrairie56 min
Jul 4, 7:23 PM MDTSevere Thunderstorm WarningGGWGarfield, Petroleum, Phillips53 min
Jul 4, 7:28 PM MDTSpecial Weather StatementGGWPrairie62 min
Jul 4, 7:49 PM MDTSpecial Weather StatementGGWMcCone56 min
Jul 4, 7:58 PM MDTSevere Thunderstorm WarningGGWGarfield, Phillips, Valley62 min
Jul 4, 8:06 PM MDTSpecial Weather StatementGGWPhillips54 min
Jul 4, 8:08 PM MDTSevere Thunderstorm WarningGGWGarfield, McCone52 min
Jul 4, 8:23 PM MDTSevere Thunderstorm WarningGGWDaniels67 min
Jul 4, 8:30 PM MDTSpecial Weather StatementGGWDawson, Prairie, Wibaux45 min
Jul 4, 8:41 PM MDTSpecial Weather StatementGGWValley64 min
Jul 4, 8:48 PM MDTSpecial Weather StatementGGWMcCone57 min
Jul 4, 8:52 PM MDTSevere Thunderstorm WarningGGWGarfield, McCone, Valley53 min
Jul 4, 9:07 PM MDTSpecial Weather StatementGGWMcCone53 min
Jul 4, 9:12 PM MDTSevere Thunderstorm WarningGGWValley36 min
Jul 4, 9:24 PM MDTSpecial Weather StatementGGWDaniels66 min
Jul 4, 9:33 PM MDTSevere Thunderstorm WarningGGWDaniels, McCone, Roosevelt, Valley57 min
Jul 4, 9:47 PM MDTAreal Flood AdvisoryGGWDaniels, Sheridan3 hr
Jul 4, 9:52 PM MDTAreal Flood AdvisoryGGWGarfield, McCone, Roosevelt, Valley2 hr
Jul 4, 9:56 PM MDTAreal Flood AdvisoryGGWGarfield, McCone3 hr
Jul 4, 10:07 PM MDTSpecial Weather StatementGGWDawson, Prairie, Richland, Roosevelt68 min
Jul 4, 10:45 PM MDTSevere Thunderstorm WarningGGWRichland, Roosevelt, Sheridan48 min
Jul 4, 11:15 PM MDTSpecial Weather StatementGGWDawson, Richland, Wibaux75 min
Jul 5, 3:46 PM MDTSpecial Weather StatementGGWRichland44 min
Jul 5, 4:09 PM MDTSevere Thunderstorm WarningGGWRoosevelt35 min

Nearby

Severe Thunderstorm Warnings in Montana, 2020Every 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.