Alert archive / Nebraska / Mesoscale Discussions in 2020
Mesoscale Discussion 848
The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2020, 7:01 PM MDT for 8 counties in Nebraska; Custer County, Fall River County, South Dakota; 5 counties in Wyoming. It was in force for 119 min.
The area
The outline as issued.
The facts
- Issued
- Jun 5, 2020, 7:01 PM MDT (01:01 UTC)
- Expired
- Jun 5, 2020, 9:00 PM MDT
- In force
- 119 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 20%
Counties Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Custer County, SD, Fall River County, SD, Campbell County, WY, Crook County, WY, Goshen County, WY, Niobrara County, WY, Weston County, WY
The radar
The Rapid City radar (KUDX), 153 km from the middle of the area, began a volume at 01:03 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
Rapid City, SD (KUNR), launched 00:00Z, 1.0 hours before the alert went out and 146 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
- 290 J/kg
- Mixed-layer CIN
- -297 J/kg
- Mixed-layer LCL
- 1632 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 156 m²/s²
- 0-3 km storm-relative helicity
- 382 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 6, 1:23 PM MDT | Severe Thunderstorm Watch | SPC | Banner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more | 7 hr |
| Jun 6, 2:33 PM MDT | Mesoscale Discussion | SPC | Arthur, Box Butte, Cherry, Cheyenne, Dawes, Deuel and 12 more | 117 min |
| Jun 6, 4:49 PM MDT | Severe Thunderstorm Watch | SPC | Arthur, Blaine, Brown, Chase, Cherry, Deuel and 12 more | 6 hr |
| Jun 6, 5:25 PM MDT | Mesoscale Discussion | SPC | Box Butte, Dawes, Morrill, Scotts Bluff, Sheridan, Sioux | 95 min |
| Jun 5, 6:24 PM MDT | Mesoscale Discussion | SPC | Uinta | 96 min |
| Jun 6, 9:48 AM MDT | Severe Thunderstorm Watch | SPC | Uinta | 6 hr |
| Jun 6, 12:27 PM MDT | Mesoscale Discussion | SPC | Albany, Campbell, Carbon, Converse, Crook, Goshen and 7 more | 93 min |
Nearby
Mesoscale Discussions in Nebraska, 2020Mesoscale Discussions in Wyoming, 2020Mesoscale Discussions in South Dakota, 2020Every mesoscale discussion in 2020
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.