Alert archive / Montana / Mesoscale Discussions in 2016

Mesoscale Discussion 1048

June 24, 201610 counties in Montana; 9 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 24, 2016, 7:06 PM MDT for 10 counties in Montana; 9 counties in North Dakota. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued: Jun 24, 2016, 7:06 PM MDT (01:06 UTC)
Expired: Jun 24, 2016, 9:00 PM MDT
In force: 114 min
Issued by: the Storm Prediction Center

Counties Daniels County, MT, Dawson County, MT, Garfield County, MT, McCone County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Valley County, MT, Wibaux County, MT, Billings County, ND, Burke County, ND, Divide County, ND, Dunn County, ND, Golden Valley County, ND, McKenzie County, ND, Mountrail County, ND, Stark County, ND, Williams County, ND

The radar

The Glasgow radar (KGGW), 127 km from the middle of the area, began a volume at 01:07 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 nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.1 hours before the alert went out and 353 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: 2684 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 2083 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 214 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.6

Open this sounding in Storm Lab

The text

As transmitted.

<!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>

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 24, 8:54 PM MDT	Mesoscale Discussion	SPC	Fallon, Richland, Wibaux	96 min
Jun 24, 11:04 PM MDT	Mesoscale Discussion	SPC	Custer, Fallon	116 min
Jun 24, 9:27 PM MDT	Severe Thunderstorm Watch	SPC	Benson, Bottineau, Burleigh, Cavalier, Eddy, Foster and 23 more	7 hr
Jun 25, 1:59 AM MDT	Mesoscale Discussion	SPC	Cavalier, Pembina, Ramsey, Walsh	91 min

Nearby

Mesoscale Discussions in Montana, 2016 Mesoscale Discussions in North Dakota, 2016 Every mesoscale discussion in 2016

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.