Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 715
The Storm Prediction Center issued this mesoscale discussion at May 24, 2020, 6:58 PM CDT for 21 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 24, 2020, 6:58 PM CDT (23:58 UTC)
- Expired
- May 24, 2020, 9:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 60%
All 21 counties
Brown County, TX, Callahan County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Eastland County, TX, Fisher County, TX, Haskell County, TX, Jones County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Nolan County, TX, Runnels County, TX, San Saba County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Young County, TX
The radar
The Dyess AFB radar (KDYX), 50 km from the middle of the area, began a volume at 00:02 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
Fort Worth, TX (KFWD), launched 12:00Z, 12.0 hours before the alert went out and 222 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
- 1546 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 735 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
<!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 23, 8:48 PM CDT | Mesoscale Discussion | SPC | Archer, Clay, Montague, Wheeler, Wichita, Wilbarger | 117 min |
| May 23, 9:33 PM CDT | Severe Thunderstorm Watch | SPC | Archer, Baylor, Clay, Haskell, Jack, Jones and 8 more | 4 hr |
| May 23, 11:36 PM CDT | Mesoscale Discussion | SPC | Archer, Clay, Jack, Montague, Palo Pinto, Parker and 4 more | 114 min |
| May 24, 12:21 PM CDT | Mesoscale Discussion | SPC | Borden, Coke, Crane, Crockett, Dawson, Glasscock and 13 more | 114 min |
| May 24, 12:39 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Austin, Bowie, Brazos, Burleson and 60 more | 96 min |
| May 24, 1:58 PM CDT | Severe Thunderstorm Watch | SPC | Borden, Brewster, Coke, Crane, Crockett, Dawson and 19 more | 6 hr |
| May 24, 3:07 PM CDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Childress, Collingsworth and 27 more | 83 min |
| May 24, 3:26 PM CDT | Severe Thunderstorm Watch | SPC | Armstrong, Briscoe, Carson, Childress, Collingsworth, Cottle and 23 more | 7 hr |
| May 24, 3:48 PM CDT | Mesoscale Discussion | SPC | Borden, Coke, Crane, Crockett, Dawson, Fisher and 20 more | 87 min |
| May 24, 5:28 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bexar, Dimmit, Duval, Edwards and 20 more | 2 hr |
| May 24, 5:56 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bandera, Bexar, Brooks, Dimmit, Duval and 17 more | 6 hr |
| May 24, 6:39 PM CDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Childress, Collingsworth, Cottle and 23 more | 2 hr |
Nearby
Mesoscale Discussions in Texas, 2020Every mesoscale discussion in 2020
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.