Alert archive / Colorado / Mesoscale Discussions in 2015
Mesoscale Discussion 893
The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2015, 8:20 PM MDT for 8 counties in Colorado; Kimball County, Nebraska; Laramie County, Wyoming. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- Jun 4, 2015, 8:20 PM MDT (02:20 UTC)
- Expired
- Jun 4, 2015, 10:15 PM MDT
- In force
- 115 min
- Issued by
- the Storm Prediction Center
Counties Adams County, CO, Arapahoe County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Morgan County, CO, Weld County, CO, Kimball County, NE, Laramie County, WY
The radar
The Denver radar (KFTG), 49 km from the middle of the area, began a volume at 02:23 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
Denver, CO (KDEN), launched 00:00Z, 2.3 hours before the alert went out and 82 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
- 945 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 2145 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -49 m²/s²
- 0-3 km storm-relative helicity
- 26 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 |
|---|---|---|---|---|
| Jun 4, 6:06 PM MDT | Tornado Watch | SPC | Kit Carson, Yuma | 5 hr |
| Jun 4, 7:20 PM MDT | Mesoscale Discussion | SPC | Bent, Crowley, El Paso, Otero, Prowers, Pueblo | 2 hr |
| Jun 5, 12:49 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Bent, Broomfield, Crowley, Denver and 14 more | 86 min |
| Jun 5, 1:09 PM MDT | Tornado Watch | SPC | Adams, Arapahoe, Baca, Bent, Boulder, Broomfield and 18 more | 6 hr |
| Jun 5, 4:22 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kit Carson, Phillips, Yuma | 53 min |
| Jun 5, 4:44 PM MDT | Tornado Watch | SPC | Cheyenne, Kit Carson, Phillips, Sedgwick, Yuma | 7 hr |
| Jun 5, 5:59 PM MDT | Mesoscale Discussion | SPC | Kit Carson | 61 min |
| Jun 4, 7:10 PM MDT | Mesoscale Discussion | SPC | Adams, Butler, Clay, Fillmore, Hall, Hamilton and 7 more | 65 min |
| Jun 4, 10:29 PM MDT | Mesoscale Discussion | SPC | Franklin, Frontier, Furnas, Gosper, Harlan, Kearney and 2 more | 61 min |
| Jun 5, 4:08 PM MDT | Mesoscale Discussion | SPC | Big Horn, Campbell, Converse, Crook, Hot Springs, Johnson and 5 more | 3 hr |
Nearby
Mesoscale Discussions in Colorado, 2015Mesoscale Discussions in Nebraska, 2015Mesoscale Discussions in Wyoming, 2015Every mesoscale discussion in 2015
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.