Alert archive / Minnesota / Mesoscale Discussions in 2018

Mesoscale Discussion 995

July 3, 201814 counties in Minnesota; 12 counties in North Dakota; 5 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 3, 2018, 7:01 AM CDT for 14 counties in Minnesota; 12 counties in North Dakota; 5 counties in South Dakota. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Jul 3, 2018, 7:01 AM CDT (12:01 UTC)
Expired: Jul 3, 2018, 9:00 AM CDT
In force: 119 min
Issued by: the Storm Prediction Center

All 31 counties

Becker County, MN, Cass County, MN, Clay County, MN, Clearwater County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Stutsman County, ND, Traill County, ND, Brown County, SD, Campbell County, SD, Marshall County, SD, McPherson County, SD, Roberts County, SD

The radar

The Fargo/Grand Forks radar (KMVX), 111 km from the middle of the area, began a volume at 12:05 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.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 0.0 hours before the alert went out and 195 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2471 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 311 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

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
Jul 2, 7:36 PM CDT	Severe Thunderstorm Watch	SPC	Big Stone, Traverse, Wilkin	9 hr
Jul 2, 9:50 PM CDT	Mesoscale Discussion	SPC	Traverse, Wilkin	115 min
Jul 2, 11:32 PM CDT	Mesoscale Discussion	SPC	Becker, Big Stone, Cass, Chippewa, Clay, Douglas and 14 more	88 min
Jul 3, 1:59 AM CDT	Severe Thunderstorm Watch	SPC	Big Stone, Clay, Norman, Traverse, Wilkin	7 hr
Jul 3, 4:15 AM CDT	Mesoscale Discussion	SPC	Big Stone, Clay, Norman, Traverse, Wilkin	90 min
Jul 3, 6:16 PM CDT	Mesoscale Discussion	SPC	Big Stone, Lac qui Parle, Lincoln, Traverse, Wilkin	2 hr
Jul 3, 12:01 AM CDT	Mesoscale Discussion	SPC	Adams, Bowman, Golden Valley, Grant, Hettinger, Slope and 1 more	89 min
Jul 3, 3:25 PM CDT	Mesoscale Discussion	SPC	Lawrence	2 hr
Jul 3, 5:42 PM CDT	Severe Thunderstorm Watch	SPC	Bennett, Butte, Custer, Fall River, Haakon, Harding and 7 more	7 hr
Jul 3, 6:42 PM CDT	Severe Thunderstorm Watch	SPC	Brown, Clark, Day, Edmunds, Faulk, Hand and 8 more	4 hr

Nearby

Mesoscale Discussions in Minnesota, 2018 Mesoscale Discussions in North Dakota, 2018 Mesoscale Discussions in South Dakota, 2018 Every mesoscale discussion in 2018

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.