Alert archive / Texas / Mesoscale Discussions in 2003
Mesoscale Discussion 624
The Storm Prediction Center issued this mesoscale discussion at Apr 29, 2003, 5:50 PM CDT for 7 counties in Oklahoma; 46 counties in Texas. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Apr 29, 2003, 5:50 PM CDT (22:50 UTC)
- Expired
- Apr 29, 2003, 7:15 PM CDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
All 53 counties
Beckham County, OK, Dewey County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Roger Mills County, OK, Armstrong County, TX, Borden County, TX, Briscoe County, TX, Childress County, TX, Coke County, TX, Collingsworth County, TX, Cottle County, TX, Crockett County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Donley County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Glasscock County, TX, Gray County, TX, Hall County, TX, Hardeman County, TX, Hemphill County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Reagan County, TX, Roberts County, TX, Schleicher County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Sutton County, TX, Terrell County, TX, Tom Green County, TX, Upton County, TX, Val Verde County, TX, Wheeler County, TX
The radar
The Midland/Odessa radar (KMAF), 85 km from the middle of the area, began a volume at 22:50 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
Midland Regional, TX (KMAF), launched 12:00Z, 10.8 hours before the alert went out and 86 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
- 893 J/kg
- Mixed-layer CIN
- -313 J/kg
- Mixed-layer LCL
- 1124 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 195 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 28, 7:10 PM CDT | Mesoscale Discussion | SPC | Craig, Kay, Nowata, Osage, Ottawa, Washington | 2 hr |
| Apr 29, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Beckham, Ellis, Greer, Harmon, Roger Mills, Woodward | 6 hr |
| Apr 29, 6:25 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Beckham, Blaine, Caddo, Comanche, Custer and 16 more | 6 hr |
| Apr 28, 7:22 PM CDT | Mesoscale Discussion | SPC | Armstrong, Borden, Briscoe, Carson, Castro, Coke and 29 more | 53 min |
| Apr 28, 9:20 PM CDT | Mesoscale Discussion | SPC | Bell, Blanco, Bosque, Brown, Burnet, Caldwell and 38 more | 85 min |
| Apr 29, 1:38 PM CDT | Mesoscale Discussion | SPC | Borden, Briscoe, Childress, Coke, Cottle, Crockett and 31 more | 3 hr |
Nearby
Mesoscale Discussions in Texas, 2003Mesoscale Discussions in Oklahoma, 2003Every mesoscale discussion in 2003
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.