Alert archive / Minnesota / Mesoscale Discussions in 2014
Mesoscale Discussion 1736
The Storm Prediction Center issued this mesoscale discussion at Sep 20, 2014, 12:16 PM CDT for 44 counties in Minnesota; Cass County, Richland County, Traill County, North Dakota; Grant County, Roberts County, South Dakota. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Sep 20, 2014, 12:16 PM CDT (17:16 UTC)
- Expired
- Sep 20, 2014, 1:15 PM CDT
- In force
- 59 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 49 counties
Aitkin County, MN, Becker County, MN, Beltrami County, MN, Benton County, MN, Big Stone County, MN, Brown County, MN, Carver County, MN, Cass County, MN, Chippewa County, MN, Clay County, MN, Clearwater County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Mahnomen County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Pope County, MN, Red Lake County, MN, Redwood County, MN, Renville County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Wright County, MN, Yellow Medicine County, MN, Cass County, ND, Richland County, ND, Traill County, ND, Grant County, SD, Roberts County, SD
The radar
The Fargo/Grand Forks radar (KMVX), 167 km from the middle of the area, began a volume at 17:21 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
Minneapolis, MN (KMPX), launched 12:00Z, 5.3 hours before the alert went out and 254 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
- 295 J/kg
- Mixed-layer CIN
- -178 J/kg
- Mixed-layer LCL
- 1113 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
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 |
|---|---|---|---|---|
| Sep 20, 1:26 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Anoka, Becker, Beltrami, Benton, Big Stone and 58 more | 6 hr |
| Sep 20, 3:57 PM CDT | Mesoscale Discussion | SPC | Aitkin, Anoka, Benton, Brown, Carver, Cass and 30 more | 93 min |
| Sep 20, 5:23 PM CDT | Mesoscale Discussion | SPC | Blue Earth, Carver, Dakota, Dodge, Fillmore, Freeborn and 14 more | 67 min |
| Sep 20, 5:42 PM CDT | Severe Thunderstorm Watch | SPC | Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more | 3 hr |
| Sep 20, 5:55 PM CDT | Mesoscale Discussion | SPC | Clay, Norman, Polk | 95 min |
| Sep 19, 10:34 PM CDT | Mesoscale Discussion | SPC | Union | 116 min |
Nearby
Mesoscale Discussions in Minnesota, 2014Mesoscale Discussions in North Dakota, 2014Mesoscale Discussions in South Dakota, 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.