Alert archive / Texas / Mesoscale Discussions in 2004
Mesoscale Discussion 2502
The Storm Prediction Center issued this mesoscale discussion at Dec 6, 2004, 10:35 AM CST for 22 counties in Texas. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- Dec 6, 2004, 10:35 AM CST (16:35 UTC)
- Expired
- Dec 6, 2004, 12:30 PM CST
- In force
- 115 min
- Issued by
- the Storm Prediction Center
All 22 counties
Borden County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Fisher County, TX, Glasscock County, TX, Haskell County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Kent County, TX, Mitchell County, TX, Nolan County, TX, Reagan County, TX, Runnels County, TX, Scurry County, TX, Shackelford County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX
The radar
The San Angelo radar (KSJT), 96 km from the middle of the area, began a volume at 16:37 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, 4.6 hours before the alert went out and 165 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
- 1369 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 236 m²/s²
- 0-3 km storm-relative helicity
- 237 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 |
|---|---|---|---|---|
| Dec 6, 11:55 AM CST | Severe Thunderstorm Watch | SPC | Callahan, Coke, Coleman, Concho, Fisher, Haskell and 8 more | 5 hr |
| Dec 6, 12:20 PM CST | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Foard, Hardeman, Jack and 6 more | 115 min |
| Dec 6, 12:40 PM CST | Severe Thunderstorm Watch | SPC | Archer, Baylor, Clay, Cooke, Hardeman, Knox and 3 more | 5 hr |
| Dec 6, 1:30 PM CST | Mesoscale Discussion | SPC | Bosque, Brown, Callahan, Coleman, Comanche, Coryell and 17 more | 90 min |
| Dec 6, 1:45 PM CST | Severe Thunderstorm Watch | SPC | Archer, Bosque, Brown, Clay, Collin, Comanche and 30 more | 6 hr |
| Dec 6, 4:58 PM CST | Mesoscale Discussion | SPC | Anderson, Baylor, Bosque, Bowie, Brown, Camp and 46 more | 92 min |
| Dec 6, 5:45 PM CST | Severe Thunderstorm Watch | SPC | Anderson, Bowie, Camp, Cass, Cherokee, Franklin and 13 more | 5 hr |
Nearby
Mesoscale Discussions in Texas, 2004Every mesoscale discussion in 2004
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.