Alert archive / Wyoming / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 387, NWS Cheyenne, WY

September 10, 2023Albany County, Converse County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Sep 10, 2023, 5:13 PM MDT for Albany County, Converse County, Wyoming. It was in force for 30 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
Sep 10, 2023, 5:13 PM MDT (23:13 UTC)
Expired
Sep 10, 2023, 5:43 PM MDT
In force
30 min
Issued by
NWS Cheyenne, WY
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Albany County, WY, Converse County, WY

The radar

The Cheyenne radar (KCYS), 146 km from the middle of the area, began a volume at 23:12 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 Cheyenne, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 10, 2:00 PM MDT, 3 hours 13 minutes earlier.

Area forecast discussion, Sep 10, 2:00 PM MDT, 3 hours 13 minutes before
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Hazardous weather outlook, Sep 10, 1:33 PM MDT, 3 hours 40 minutes before
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<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.
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In the hours before

Special weather statement, Sep 10, 3:46 PM MDT, 1 hour 27 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 Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 9, 6:21 PM MDTSpecial Weather StatementCYSConverse39 min
Sep 9, 6:54 PM MDTSpecial Weather StatementCYSPlatte51 min
Sep 9, 6:59 PM MDTSevere Thunderstorm WarningCYSConverse, Niobrara, Platte61 min
Sep 9, 7:47 PM MDTSevere Thunderstorm WarningCYSConverse43 min
Sep 9, 7:57 PM MDTSevere Thunderstorm Warning Considerable damage threatCYSGoshen, Platte63 min
Sep 9, 8:28 PM MDTSpecial Weather StatementCYSConverse47 min
Sep 9, 8:39 PM MDTSevere Thunderstorm WarningCYSConverse, Niobrara, Platte66 min
Sep 9, 9:05 PM MDTSpecial Weather StatementCYSGoshen40 min
Sep 9, 9:12 PM MDTSevere Thunderstorm WarningCYSGoshen50 min
Sep 9, 9:43 PM MDTSevere Thunderstorm WarningCYSAlbany, Converse, Goshen, Niobrara, Platte62 min
Sep 9, 10:40 PM MDTSevere Thunderstorm WarningCYSGoshen, Platte65 min
Sep 9, 11:32 PM MDTSevere Thunderstorm Warning Considerable damage threatCYSGoshen58 min
Sep 10, 12:24 AM MDTSevere Thunderstorm WarningCYSGoshen22 min
Sep 10, 7:23 AM MDTSpecial Weather StatementCYSGoshen37 min
Sep 10, 3:46 PM MDTSpecial Weather StatementCYSConverse59 min
Sep 10, 9:53 AM MDTSpecial Weather StatementCYSCheyenne37 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2023Every severe thunderstorm 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.