Alert archive / Montana / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 12, NWS Great Falls, MT

May 28, 2026Glacier County, Pondera County, Toole County, Montana

NWS Great Falls, MT issued this severe thunderstorm warning at May 28, 2026, 5:27 PM MDT for Glacier County, Pondera County, Toole County, Montana. It was in force for 33 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 28, 2026, 5:27 PM MDT (23:27 UTC)
Expired: May 28, 2026, 6:00 PM MDT
In force: 33 min
Issued by: NWS Great Falls, MT
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Glacier County, MT, Pondera County, MT, Toole County, MT

The radar

The Great Falls radar (KTFX), 137 km from the middle of the area, began a volume at 23:27 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 Great Falls, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at May 28, 2:19 PM MDT, 3 hours 8 minutes earlier.

Area forecast discussion, May 28, 2:19 PM MDT, 3 hours 8 minutes before

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In the hours before

Special weather statement, May 28, 1:29 PM MDT, 3 hours 58 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.
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      <p id="message2">
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Special weather statement, May 28, 2:08 PM MDT, 3 hours 19 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.
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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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Special weather statement, May 28, 4:36 PM MDT, 51 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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Special weather statement, May 28, 4:57 PM MDT, 30 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.
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Special weather statement, May 28, 5:27 PM MDT, 0 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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</body>
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The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 7:21 PM MDT	Special Weather Statement	TFX	Beaverhead	39 min
May 27, 7:45 PM MDT	Special Weather Statement	TFX	Broadwater	45 min
May 28, 1:49 AM MDT	Special Weather Statement	TFX	Pondera, Teton	41 min
May 28, 1:54 AM MDT	Severe Thunderstorm Warning	TFX	Lewis and Clark, Pondera, Teton	42 min
May 28, 2:45 AM MDT	Special Weather Statement	TFX	Pondera	60 min
May 28, 2:54 AM MDT	Special Weather Statement	TFX	Glacier, Pondera, Toole	96 min
May 28, 1:29 PM MDT	Special Weather Statement	TFX	Cascade	46 min
May 28, 2:08 PM MDT	Special Weather Statement	TFX	Meagher	52 min
May 28, 2:37 PM MDT	Areal Flood Advisory	TFX	Cascade, Meagher	3 hr
May 28, 4:06 PM MDT	Areal Flood Advisory	TFX	Cascade, Lewis and Clark, Meagher	3 hr
May 28, 4:36 PM MDT	Special Weather Statement	TFX	Hill	39 min
May 28, 4:57 PM MDT	Special Weather Statement	TFX	Pondera	48 min
May 28, 5:19 PM MDT	Areal Flood Advisory	TFX	Chouteau, Hill	3 hr
May 28, 5:27 PM MDT	Special Weather Statement	TFX	Judith Basin	48 min
May 28, 5:30 PM MDT	Special Weather Statement	TFX	Liberty	45 min
May 28, 5:40 PM MDT	Areal Flood Advisory	TFX	Glacier, Pondera, Toole	2 hr

Nearby

Severe Thunderstorm Warnings in Montana, 2026 Every severe thunderstorm warning in 2026

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.