Alert archive / Nebraska / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 166, NWS Cheyenne, WY

June 26, 2023Dawes County, Sioux County, Nebraska

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 26, 2023, 11:28 PM MDT for Dawes County, Sioux County, Nebraska. It was in force for 47 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, 2023, 11:28 PM MDT (05:28 UTC)
Expired: Jun 27, 2023, 12:15 AM MDT
In force: 47 min
Issued by: NWS Cheyenne, WY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Dawes County, NE, Sioux County, NE

The radar

The Rapid City radar (KUDX), 176 km from the middle of the area, began a volume at 05:28 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, 6:07 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.5 hours before the alert went out and 287 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 79 J/kg
Mixed-layer CIN: -202 J/kg
Mixed-layer LCL: 2093 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 205 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jun 26, 11:22 PM MDT, 6 minutes earlier.

Area forecast discussion, Jun 26, 11:22 PM MDT, 6 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>

Hazardous weather outlook, Jun 26, 3:30 AM MDT, 19 hours 58 minutes before

Hazardous Weather Outlook
National Weather Service Cheyenne WY
330 AM MDT Mon Jun 26 2023

NEZ019>021-054-055-WYZ103>119-270930-
Scotts Bluff County-Banner County-Morrill County-Kimball County-
Cheyenne County-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
330 AM MDT Mon Jun 26 2023

This hazardous weather outlook is for portions of panhandle
Nebraska...south central Wyoming and southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Showers and thunderstorms are not expected today. Gusty winds will
be possible across Carbon county and southern Albany county.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

Daily chances for afternoon showers and thunderstorms begins on
Tuesday and are expected to continue through Friday. Some storms on
Tuesday and Wednesday may be severe with, strong winds and large
hail being the primary hazards.

.Spotter information statement...

Spotter activation will not be needed.

NEZ002-003-095-096-WYZ101-102-270930-
Dawes County-Box Butte County-Northern Sioux County-
Southern Sioux County-Converse County Lower Elevations-
Niobrara County-
330 AM MDT Mon Jun 26 2023

This hazardous weather outlook is for portions of panhandle
Nebraska and east central Wyoming.

.DAY ONE...TODAY AND TONIGHT

A few isolated thunderstorms are possible this afternoon and evening
for northern portions of southeast Wyoming and northern portions of
the Nebraska Panhandle. Some of these storms may be severe. Large
hail, potentially greater than 2 inches, and strong winds are the
primary threats.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

Daily chances for afternoon showers and thunderstorms are expected
to continue through Friday. Some storms on Tuesday and Wednesday may
be severe, with strong winds and large hail being the primary
hazards.

.Spotter information statement...

Spotter activation will not be needed.

In the hours before

Local storm report, Jun 26, 9:02 PM MDT, 2 hours 26 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>

Local storm report, Jun 26, 9:11 PM MDT, 2 hours 17 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>

Local storm report, Jun 26, 9:14 PM MDT, 2 hours 14 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>

Local storm report, Jun 26, 10:19 PM MDT, 1 hour 9 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>

Local storm report, Jun 26, 10:47 PM MDT, 41 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>

Local storm report, Jun 26, 10:52 PM MDT, 36 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.

Issued	Product	Office	Counties	Lasted
Jun 26, 6:00 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Goshen, Laramie, Platte	45 min
Jun 26, 6:35 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Goshen, Laramie	55 min
Jun 26, 6:44 PM MDT	Tornado Warning Tornado observed	CYS	Laramie	31 min
Jun 26, 7:08 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Goshen, Laramie	52 min
Jun 26, 7:13 PM MDT	Tornado Warning	CYS	Laramie	32 min
Jun 26, 7:22 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Laramie	38 min
Jun 26, 7:30 PM MDT	Tornado Warning	CYS	Laramie	30 min
Jun 26, 8:03 PM MDT	Special Weather Statement	CYS	Converse	42 min
Jun 26, 8:27 PM MDT	Severe Thunderstorm Warning	CYS	Converse	48 min
Jun 26, 9:11 PM MDT	Severe Thunderstorm Warning	CYS	Converse	38 min
Jun 26, 9:14 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Converse, Niobrara	46 min
Jun 26, 9:56 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Niobrara	49 min
Jun 26, 10:33 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Niobrara	42 min
Jun 26, 10:35 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Converse, Niobrara	40 min
Jun 27, 12:22 AM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Niobrara	53 min
Jun 27, 5:53 AM MDT	Dense Fog Advisory	CYS	Albany, Laramie	3 hr
Jun 26, 7:36 PM MDT	Tornado Warning	CYS	Kimball	24 min
Jun 26, 7:59 PM MDT	Severe Thunderstorm Warning Destructive damage threat	CYS	Banner, Cheyenne, Kimball	46 min
Jun 26, 7:59 PM MDT	Tornado Warning	CYS	Kimball	31 min
Jun 26, 8:22 PM MDT	Tornado Warning	CYS	Cheyenne, Kimball	23 min
Jun 26, 8:41 PM MDT	Severe Thunderstorm Warning Destructive damage threat	CYS	Cheyenne, Kimball	49 min
Jun 26, 8:42 PM MDT	Tornado Warning	CYS	Cheyenne, Kimball	33 min
Jun 26, 8:43 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Banner, Cheyenne, Kimball, Morrill	47 min
Jun 26, 8:56 PM MDT	Areal Flood Advisory	CYS	Cheyenne, Kimball	3 hr
Jun 26, 9:27 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne	48 min
Jun 26, 9:27 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Banner, Cheyenne, Kimball, Morrill	48 min
Jun 26, 10:18 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne	42 min
Jun 26, 10:52 PM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Cheyenne	23 min
Jun 27, 12:15 AM MDT	Severe Thunderstorm Warning Considerable damage threat	CYS	Dawes	25 min
Jun 27, 3:06 PM MDT	Special Weather Statement	CYS	Scotts Bluff	39 min
Jun 27, 4:09 PM MDT	Special Weather Statement	CYS	Morrill	51 min
Jun 27, 4:16 PM MDT	Severe Thunderstorm Warning	CYS	Morrill	38 min
Jun 27, 4:52 PM MDT	Severe Thunderstorm Warning	CYS	Morrill	38 min
Jun 27, 5:52 PM MDT	Special Weather Statement	CYS	Morrill	38 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2023 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.