Alert archive / Montana / Flash Flood Warnings in 2023

Flash Flood Warning 2, NWS Billings, MT

May 23, 2023Custer County, Montana

NWS Billings, MT issued this flash flood warning at May 23, 2023, 8:02 PM MDT for Custer County, Montana. It was in force for 3 hr. 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 23, 2023, 8:02 PM MDT (02:02 UTC)
Expired: May 23, 2023, 11:00 PM MDT
In force: 3 hr
Issued by: NWS Billings, MT
Area: Storm-based polygon
Flood severity: None

County Custer County, MT

The radar

The Glasgow radar (KGGW), 231 km from the middle of the area, began a volume at 02:05 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 23, 6:34 PM MDT, 1 hour 28 minutes before

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Special weather statement, May 23, 6:52 PM MDT, 1 hour 10 minutes before

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<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Special weather statement, May 23, 6:56 PM MDT, 1 hour 6 minutes before

<!doctype html>
<html lang="en">
<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.
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Special weather statement, May 23, 7:44 PM MDT, 18 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, May 23, 7:47 PM MDT, 15 minutes 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>

Special weather statement, May 23, 7:52 PM MDT, 10 minutes 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 Billings, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 23, 6:03 PM MDT	Special Weather Statement	BYZ	Golden Valley	27 min
May 23, 6:13 PM MDT	Special Weather Statement	BYZ	Carter	47 min
May 23, 6:17 PM MDT	Flash Flood Warning	BYZ	Custer	3 hr
May 23, 6:34 PM MDT	Special Weather Statement	BYZ	Golden Valley	26 min
May 23, 6:52 PM MDT	Special Weather Statement	BYZ	Custer	23 min
May 23, 6:56 PM MDT	Special Weather Statement	BYZ	Golden Valley	49 min
May 23, 7:09 PM MDT	Severe Thunderstorm Warning	BYZ	Custer	51 min
May 23, 7:44 PM MDT	Special Weather Statement	BYZ	Rosebud	46 min
May 23, 7:47 PM MDT	Special Weather Statement	BYZ	Fallon	28 min
May 23, 7:52 PM MDT	Special Weather Statement	BYZ	Powder River	38 min
May 23, 10:31 PM MDT	Special Weather Statement	BYZ	Custer	44 min
May 23, 11:38 PM MDT	Special Weather Statement	BYZ	Rosebud	52 min
May 24, 4:06 PM MDT	Special Weather Statement	BYZ		39 min
May 24, 4:08 PM MDT	Special Weather Statement	BYZ		37 min
May 24, 4:36 PM MDT	Special Weather Statement	BYZ	Yellowstone	24 min
May 24, 4:39 PM MDT	Special Weather Statement	BYZ	Rosebud	51 min
May 24, 4:45 PM MDT	Special Weather Statement	BYZ	Rosebud	45 min
May 24, 5:00 PM MDT	Special Weather Statement	BYZ	Custer	45 min
May 24, 5:04 PM MDT	Special Weather Statement	BYZ	Carbon	26 min
May 24, 5:28 PM MDT	Special Weather Statement	BYZ	Rosebud	47 min
May 24, 5:35 PM MDT	Special Weather Statement	BYZ	Rosebud	40 min
May 24, 5:46 PM MDT	Special Weather Statement	BYZ	Yellowstone	44 min
May 24, 5:47 PM MDT	Special Weather Statement	BYZ	Custer	28 min
May 24, 5:48 PM MDT	Special Weather Statement	BYZ	Treasure	42 min
May 24, 5:58 PM MDT	Special Weather Statement	BYZ	Prairie	17 min

Nearby

Flash Flood Warnings in Montana, 2023 Every flash flood warning in 2023

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.