Alert archive / Montana / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 49, NWS Billings, MT

June 26, 2026Custer County, Montana

NWS Billings, MT issued this severe thunderstorm warning at Jun 26, 2026, 8:14 PM MDT for Custer County, Montana. It was in force for 46 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: Jun 26, 2026, 8:14 PM MDT (02:14 UTC)
Expired: Jun 26, 2026, 9:00 PM MDT
In force: 46 min
Issued by: NWS Billings, MT
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Custer County, MT

The radar

The Glasgow radar (KGGW), 231 km from the middle of the area, began a volume at 02:14 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.

Issued	Product	Office	Lasted
Jun 26, 4:29 PM MDT	Severe Thunderstorm Watch	SPC	7 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 Billings, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 26, 5:51 PM MDT, 2 hours 23 minutes earlier.

Area forecast discussion, Jun 26, 5:51 PM MDT, 2 hours 23 minutes before

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In the hours before

Special weather statement, Jun 26, 6:40 PM MDT, 1 hour 34 minutes before

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Special weather statement, Jun 26, 7:02 PM MDT, 1 hour 12 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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        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, Jun 26, 7:45 PM MDT, 29 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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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 6:03 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud	44 min
Jun 26, 6:16 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Powder River	30 min
Jun 26, 6:40 PM MDT	Special Weather Statement	BYZ	Carter	50 min
Jun 26, 7:02 PM MDT	Special Weather Statement	BYZ	Powder River	43 min
Jun 26, 7:45 PM MDT	Special Weather Statement	BYZ	Powder River	45 min
Jun 26, 9:14 PM MDT	Special Weather Statement	BYZ	Fallon	46 min
Jun 26, 10:00 PM MDT	Special Weather Statement	BYZ	Rosebud	45 min
Jun 27, 10:49 AM MDT	Winter Weather Advisory	BYZ	Carbon, Park, Stillwater, Sweet Grass	55 hr
Jun 27, 11:40 AM MDT	Special Weather Statement	BYZ	Rosebud	50 min
Jun 27, 12:41 PM MDT	Flash Flood Warning	BYZ	Stillwater	3 hr
Jun 27, 12:47 PM MDT	Special Weather Statement	BYZ	Prairie	28 min
Jun 27, 12:50 PM MDT	Special Weather Statement	BYZ	Stillwater	25 min
Jun 27, 1:11 PM MDT	Special Weather Statement	BYZ	Yellowstone	34 min
Jun 27, 1:28 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Powder River, Rosebud	62 min
Jun 27, 1:34 PM MDT	Special Weather Statement	BYZ	Carbon	26 min
Jun 27, 1:37 PM MDT	Special Weather Statement	BYZ	Yellowstone	23 min
Jun 27, 1:45 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Powder River	45 min
Jun 27, 1:50 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Carbon	25 min
Jun 27, 1:56 PM MDT	Special Weather Statement	BYZ	Yellowstone	34 min
Jun 27, 2:07 PM MDT	Flash Flood Warning	BYZ	Yellowstone	3 hr
Jun 27, 2:24 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Big Horn, Powder River, Rosebud	56 min
Jun 27, 2:28 PM MDT	Flash Flood Warning	BYZ	Rosebud	3 hr
Jun 27, 2:38 PM MDT	Special Weather Statement	BYZ	Big Horn	37 min
Jun 27, 2:43 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	62 min
Jun 27, 2:56 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	49 min
Jun 27, 3:02 PM MDT	Flash Flood Warning	BYZ	Big Horn	3 hr
Jun 27, 3:18 PM MDT	Special Weather Statement	BYZ	Big Horn	27 min
Jun 27, 3:19 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Powder River, Rosebud	35 min
Jun 27, 3:43 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	47 min
Jun 27, 3:46 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn	44 min
Jun 27, 3:51 PM MDT	Special Weather Statement	BYZ	Treasure	39 min
Jun 27, 3:53 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Powder River	45 min
Jun 27, 3:54 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	51 min
Jun 27, 4:01 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Fallon	52 min
Jun 27, 4:23 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Big Horn, Rosebud, Treasure	37 min
Jun 27, 4:27 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud	35 min
Jun 27, 4:28 PM MDT	Severe Thunderstorm Warning	BYZ	Carter	32 min
Jun 27, 4:30 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	47 min
Jun 27, 4:38 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Custer, Powder River	31 min
Jun 27, 4:52 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Custer, Fallon	38 min
Jun 27, 4:53 PM MDT	Severe Thunderstorm Warning	BYZ	Big Horn, Rosebud, Treasure	37 min
Jun 27, 5:01 PM MDT	Severe Thunderstorm Warning	BYZ	Rosebud	29 min
Jun 27, 5:08 PM MDT	Severe Thunderstorm Warning	BYZ	Carter, Custer, Fallon	18 min
Jun 27, 5:25 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BYZ	Carter, Custer, Fallon	65 min
Jun 27, 1:14 PM MDT	Severe Thunderstorm Warning	BYZ	Sheridan	32 min

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.