Alert archive / Colorado / Mesoscale Discussions in 2007
Mesoscale Discussion 918
The Storm Prediction Center issued this mesoscale discussion at May 29, 2007, 12:12 PM MDT for 22 counties in Colorado; Chase County, Dundy County, Perkins County, Nebraska. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- May 29, 2007, 12:12 PM MDT (18:12 UTC)
- Expired
- May 29, 2007, 1:45 PM MDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 25 counties
Adams County, CO, Arapahoe County, CO, Bent County, CO, Broomfield County, CO, Cheyenne County, CO, Crowley County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Jefferson County, CO, Kiowa County, CO, Kit Carson County, CO, Las Animas County, CO, Lincoln County, CO, Morgan County, CO, Otero County, CO, Phillips County, CO, Pueblo County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Chase County, NE, Dundy County, NE, Perkins County, NE
The radar
The Pueblo radar (KPUX), 95 km from the middle of the area, began a volume at 18:15 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 (KDNR), launched 12:00Z, 6.2 hours before the alert went out and 88 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
- 18 J/kg
- Mixed-layer CIN
- -196 J/kg
- Mixed-layer LCL
- 1497 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -86 m²/s²
- 0-3 km storm-relative helicity
- -23 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 |
|---|---|---|---|---|
| May 29, 12:29 PM MDT | Tornado Watch | SPC | Adams, Arapahoe, Denver, Douglas, Elbert, El Paso and 9 more | 8 hr |
| May 29, 2:52 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Bent, Broomfield, Cheyenne, Crowley and 16 more | 53 min |
| May 29, 4:34 PM MDT | Mesoscale Discussion | SPC | Cheyenne, El Paso, Kit Carson, Lincoln, Yuma | 3 hr |
| May 29, 5:08 PM MDT | Tornado Watch | SPC | Baca, Bent, Cheyenne, Crowley, Huerfano, Kiowa and 4 more | 4 hr |
| May 29, 5:40 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Cheyenne, Crowley, Huerfano, Kiowa and 7 more | 95 min |
| May 28, 8:03 PM MDT | Mesoscale Discussion | SPC | Hayes | 87 min |
Nearby
Mesoscale Discussions in Colorado, 2007Mesoscale Discussions in Nebraska, 2007Every mesoscale discussion in 2007
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.