Alert archive / Texas / Mesoscale Discussions in 2015
Mesoscale Discussion 829
The Storm Prediction Center issued this mesoscale discussion at May 28, 2015, 2:42 PM MDT for Chaves County, Eddy County, Lea County, New Mexico; 61 counties in Texas. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- May 28, 2015, 2:42 PM MDT (20:42 UTC)
- Expired
- May 28, 2015, 3:45 PM MDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
All 64 counties
Chaves County, NM, Eddy County, NM, Lea County, NM, Andrews County, TX, Bailey County, TX, Baylor County, TX, Borden County, TX, Brewster County, TX, Cochran County, TX, Coke County, TX, Cottle County, TX, Crane County, TX, Crockett County, TX, Crosby County, TX, Culberson County, TX, Dawson County, TX, Dickens County, TX, Ector County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Gaines County, TX, Garza County, TX, Glasscock County, TX, Hale County, TX, Haskell County, TX, Hockley County, TX, Howard County, TX, Irion County, TX, Jeff Davis County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Lamb County, TX, Loving County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Pecos County, TX, Presidio County, TX, Reagan County, TX, Reeves County, TX, Runnels County, TX, Schleicher County, TX, Scurry County, TX, Shackelford County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Terrell County, TX, Terry County, TX, Throckmorton County, TX, Tom Green County, TX, Upton County, TX, Val Verde County, TX, Ward County, TX, Wilbarger County, TX, Winkler County, TX, Yoakum County, TX
The radar
The Midland/Odessa radar (KMAF), 32 km from the middle of the area, began a volume at 20:45 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
Midland Regional, TX (KMAF), launched 12:00Z, 8.7 hours before the alert went out and 33 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
- 2845 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 630 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.0
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 |
|---|---|---|---|---|
| May 28, 10:45 AM MDT | Mesoscale Discussion | SPC | Eddy, Lea | 90 min |
| May 28, 11:44 AM MDT | Tornado Watch | SPC | Chaves, Eddy, Lea, Roosevelt | 7 hr |
| May 28, 1:18 PM MDT | Severe Thunderstorm Watch | SPC | Colfax, Union | 7 hr |
| May 28, 1:50 AM MDT | Mesoscale Discussion | SPC | Archer, Clay, Cooke, Foard, Grayson, Montague and 2 more | 2 hr |
| May 28, 1:04 PM MDT | Mesoscale Discussion | SPC | Atascosa, Austin, Bastrop, Bee, Bell, Bexar and 30 more | 56 min |
| May 28, 1:56 PM MDT | Mesoscale Discussion | SPC | Archer, Bosque, Brown, Callahan, Clay, Coleman and 25 more | 94 min |
| May 28, 2:26 PM MDT | Severe Thunderstorm Watch | SPC | Archer, Bell, Bosque, Brown, Clay, Coleman and 44 more | 8 hr |
| May 28, 4:33 PM MDT | Mesoscale Discussion | SPC | Dallam, Hansford, Lipscomb, Ochiltree, Sherman | 87 min |
| May 28, 5:57 PM MDT | Mesoscale Discussion | SPC | Bandera, Bexar, Blanco, Coke, Comal, Concho and 28 more | 2 hr |
Nearby
Mesoscale Discussions in Texas, 2015Mesoscale Discussions in New Mexico, 2015Every mesoscale discussion in 2015
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.