Alert archive / North Dakota / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 112, NWS Bismarck, ND

July 16, 2019Hettinger County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 16, 2019, 7:56 PM MDT for Hettinger County, North Dakota. It was in force for 64 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: Jul 16, 2019, 7:56 PM MDT (01:56 UTC)
Expired: Jul 16, 2019, 9:00 PM MDT
In force: 64 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

County Hettinger County, ND

The radar

The Bismarck radar (KBIS), 135 km from the middle of the area, began a volume at 02:00 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
Jul 16, 2:50 PM MDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Rapid City, SD (KUNR), launched 00:00Z, 1.9 hours before the alert went out and 265 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: 2775 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 1389 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.8

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 Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 16, 7:55 PM MDT, 1 minute earlier.

Area forecast discussion, Jul 16, 7:55 PM MDT, 1 minute before

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In the hours before

Local storm report, Jul 16, 7:19 PM MDT, 37 minutes before

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  <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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The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 16, 6:19 PM MDT	Severe Thunderstorm Warning	BIS	Grant	56 min
Jul 16, 7:00 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	45 min
Jul 16, 7:14 PM MDT	Severe Thunderstorm Warning	BIS	Hettinger, Stark	46 min
Jul 16, 8:59 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger	61 min
Jul 16, 9:15 PM MDT	Special Weather Statement	BIS	McKenzie	30 min
Jul 16, 9:35 PM MDT	Special Weather Statement	BIS	McKenzie	40 min
Jul 16, 10:21 PM MDT	Special Weather Statement	BIS	Oliver	39 min
Jul 16, 11:12 PM MDT	Special Weather Statement	BIS	Billings, Golden Valley	48 min
Jul 16, 11:44 PM MDT	Special Weather Statement	BIS	Logan	31 min
Jul 17, 12:14 AM MDT	Special Weather Statement	BIS	Logan	46 min
Jul 17, 12:36 AM MDT	Areal Flood Advisory	BIS	Kidder, Wells	3 hr
Jul 17, 1:05 AM MDT	Special Weather Statement	BIS	Foster	40 min
Jul 17, 1:39 AM MDT	Areal Flood Advisory	BIS	Foster, Stutsman, Wells	3 hr
Jul 17, 3:29 PM MDT	Special Weather Statement	BIS	Hettinger	31 min
Jul 17, 3:36 PM MDT	Special Weather Statement	BIS	McKenzie	39 min
Jul 17, 3:56 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger	49 min
Jul 17, 5:17 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	58 min
Jul 17, 5:38 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Stark	67 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2019 Every severe thunderstorm warning in 2019

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.