Alert archive / Montana / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 52, NWS Great Falls, MT

August 3, 2020Fergus County, Montana

NWS Great Falls, MT issued this severe thunderstorm warning at Aug 3, 2020, 6:02 PM MDT for Fergus County, Montana. It was in force for 28 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
Aug 3, 2020, 6:02 PM MDT (00:02 UTC)
Expired
Aug 3, 2020, 6:30 PM MDT
In force
28 min
Issued by
NWS Great Falls, MT
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Fergus County, MT

The radar

The Billings radar (KBLX), 164 km from the middle of the area, began a volume at 00:04 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 Aug 3, 5:48 PM MDT, 14 minutes earlier.

Area forecast discussion, Aug 3, 5:48 PM MDT, 14 minutes before
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In the hours before

Special weather statement, Aug 3, 5:13 PM MDT, 49 minutes before
Special Weather Statement
National Weather Service Great Falls MT
513 PM MDT Mon Aug 3 2020

MTZ013-032345-
Chouteau-
513 PM MDT Mon Aug 3 2020

...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL CHOUTEAU COUNTY...

At 512 PM MDT, a strong thunderstorm was located 14 miles west of
Fort Benton, moving east at 25 mph.

Winds in excess of 40 mph and penny size hail are possible with this
storm.

Locations impacted include...
Fort Benton, Carter and Floweree.

This includes Highway 87 between mile markers 22 and 42.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding.

Cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4770 11105 4781 11107 4790 11067 4769 11064
TIME...MOT...LOC 2312Z 260DEG 26KT 4777 11095

RCG
Special weather statement, Aug 3, 5:21 PM MDT, 41 minutes before
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Special weather statement, Aug 3, 5:28 PM MDT, 34 minutes before
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      <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, Aug 3, 5:34 PM MDT, 28 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.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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Special weather statement, Aug 3, 5:36 PM MDT, 26 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, Aug 3, 5:46 PM MDT, 16 minutes before
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<head>
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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>
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 6:16 PM MDTSpecial Weather StatementTFXGallatin29 min
Aug 3, 6:47 PM MDTSpecial Weather StatementTFXGallatin28 min
Aug 3, 7:15 PM MDTSpecial Weather StatementTFXGallatin30 min
Aug 3, 10:55 PM MDTSpecial Weather StatementTFXFergus50 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.