Alert archive / North Dakota / Mesoscale Discussions in 2014
Mesoscale Discussion 755
The Storm Prediction Center issued this mesoscale discussion at May 29, 2014, 2:15 PM MDT for 20 counties in North Dakota; 7 counties in South Dakota; Crook County, Wyoming. It was in force for 60 min.
The area
The outline as issued.
The facts
- Issued
- May 29, 2014, 2:15 PM MDT (20:15 UTC)
- Expired
- May 29, 2014, 3:15 PM MDT
- In force
- 60 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 28 counties
Adams County, ND, Billings County, ND, Bottineau County, ND, Bowman County, ND, Burke County, ND, Dunn County, ND, Grant County, ND, Hettinger County, ND, McHenry County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Renville County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Williams County, ND, Butte County, SD, Harding County, SD, Lawrence County, SD, Meade County, SD, Pennington County, SD, Perkins County, SD, Ziebach County, SD, Crook County, WY
The radar
The Bismarck radar (KBIS), 186 km from the middle of the area, began a volume at 20:16 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 8.3 hours before the alert went out and 190 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.
- Mixed-layer CAPE
- 106 J/kg
- Mixed-layer CIN
- -558 J/kg
- Mixed-layer LCL
- 1617 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
<!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 |
|---|---|---|---|---|
| May 28, 6:28 PM MDT | Mesoscale Discussion | SPC | Divide | 92 min |
| May 28, 8:21 PM MDT | Mesoscale Discussion | SPC | Divide | 114 min |
| May 29, 2:45 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Billings, Bottineau, Bowman, Burke, Burleigh and 15 more | 6 hr |
| May 29, 5:25 PM MDT | Mesoscale Discussion | SPC | Adams, Billings, Bottineau, Bowman, Burke, Dunn and 12 more | 65 min |
| May 29, 1:54 PM MDT | Mesoscale Discussion | SPC | Campbell, Converse, Fremont, Goshen, Hot Springs, Johnson and 6 more | 96 min |
Nearby
Mesoscale Discussions in North Dakota, 2014Mesoscale Discussions in South Dakota, 2014Mesoscale Discussions in Wyoming, 2014Every mesoscale discussion in 2014
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.