Alert archive / Kansas / Mesoscale Discussions in 2007
Mesoscale Discussion 528
The Storm Prediction Center issued this mesoscale discussion at Apr 21, 2007, 5:10 PM MDT for 7 counties in Colorado; 31 counties in Kansas; Dundy County, Hitchcock County, Red Willow County, Nebraska. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 21, 2007, 5:10 PM MDT (23:10 UTC)
- Expired
- Apr 21, 2007, 7:15 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 41 counties
Baca County, CO, Bent County, CO, Cheyenne County, CO, Kiowa County, CO, Kit Carson County, CO, Prowers County, CO, Yuma County, CO, Cheyenne County, KS, Clark County, KS, Decatur County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Norton County, KS, Rawlins County, KS, Scott County, KS, Seward County, KS, Sheridan County, KS, Sherman County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS, Dundy County, NE, Hitchcock County, NE, Red Willow County, NE
The radar
The Goodland radar (KGLD), 65 km from the middle of the area, began a volume at 23:10 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 (KDNR), launched 12:00Z, 11.2 hours before the alert went out and 182 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
- 2628 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 178 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 |
|---|---|---|---|---|
| Apr 21, 12:35 PM MDT | Mesoscale Discussion | SPC | Sedgwick | 55 min |
| Apr 21, 12:57 PM MDT | Tornado Watch | SPC | Phillips, Sedgwick | 9 hr |
| Apr 21, 1:44 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Cheyenne, Kiowa, Kit Carson, Lincoln and 1 more | 91 min |
| Apr 21, 2:10 PM MDT | Tornado Watch | SPC | Baca, Bent, Cheyenne, Kiowa, Kit Carson, Prowers and 1 more | 7 hr |
| Apr 21, 4:57 PM MDT | Mesoscale Discussion | SPC | Phillips, Sedgwick | 2 hr |
| Apr 21, 5:11 AM MDT | Mesoscale Discussion | SPC | Decatur, Finney, Gove, Grant, Gray, Haskell and 11 more | 2 hr |
| Apr 20, 7:45 PM MDT | Severe Thunderstorm Watch | SPC | Blaine, Boyd, Brown, Chase, Cherry, Custer and 19 more | 5 hr |
| Apr 21, 12:31 AM MDT | Mesoscale Discussion | SPC | Boyd | 59 min |
Nearby
Mesoscale Discussions in Kansas, 2007Mesoscale 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.