Alert archive / Colorado / Mesoscale Discussions in 2014
Mesoscale Discussion 1774
The Storm Prediction Center issued this mesoscale discussion at Sep 29, 2014, 1:19 PM MDT for 14 counties in Colorado; Cheyenne County, Sherman County, Kansas; 12 counties in Nebraska. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Sep 29, 2014, 1:19 PM MDT (19:19 UTC)
- Expired
- Sep 29, 2014, 2:15 PM MDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 95%
All 28 counties
Adams County, CO, Arapahoe County, CO, Cheyenne County, CO, Denver County, CO, Elbert County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Cheyenne County, KS, Sherman County, KS, Arthur County, NE, Banner County, NE, Chase County, NE, Cheyenne County, NE, Deuel County, NE, Dundy County, NE, Garden County, NE, Keith County, NE, Kimball County, NE, Morrill County, NE, Perkins County, NE, Scotts Bluff County, NE
The radar
The Denver radar (KFTG), 102 km from the middle of the area, began a volume at 19:19 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
Denver, CO (KDEN), launched 12:00Z, 7.3 hours before the alert went out and 43 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 772 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -55 m²/s²
- 0-3 km storm-relative helicity
- -16 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 |
|---|---|---|---|---|
| Sep 29, 11:56 AM MDT | Mesoscale Discussion | SPC | Baca, Bent, Cheyenne, Costilla, Crowley, Custer and 8 more | 2 hr |
| Sep 29, 1:33 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Crowley, Custer, El Paso, Fremont and 7 more | 7 hr |
| Sep 29, 2:01 PM MDT | Tornado Watch | SPC | Adams, Arapahoe, Cheyenne, Douglas, Elbert, Kit Carson and 8 more | 7 hr |
| Sep 29, 2:54 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Crowley, Huerfano, Kiowa, Las Animas and 3 more | 96 min |
| Sep 29, 4:52 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kit Carson, Lincoln, Logan, Morgan, Phillips and 3 more | 83 min |
Nearby
Mesoscale Discussions in Colorado, 2014Mesoscale Discussions in Nebraska, 2014Mesoscale Discussions in Kansas, 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.