Alert archive / Texas / Mesoscale Discussions in 2017
Mesoscale Discussion 1207
The Storm Prediction Center issued this mesoscale discussion at Jul 1, 2017, 2:56 AM CDT for 23 counties in Texas. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Jul 1, 2017, 2:56 AM CDT (07:56 UTC)
- Expired
- Jul 1, 2017, 4:00 AM CDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 23 counties
Borden County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Fisher County, TX, Garza County, TX, Haskell County, TX, Howard County, TX, Jones County, TX, Kent County, TX, King County, TX, Lynn County, TX, Mitchell County, TX, Nolan County, TX, Runnels County, TX, Scurry County, TX, Shackelford County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX
The radar
The Dyess AFB radar (KDYX), 128 km from the middle of the area, began a volume at 08:00 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 00:00Z, 7.9 hours before the alert went out and 173 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
- 1117 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 3339 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
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 |
|---|---|---|---|---|
| Jun 30, 7:51 PM CDT | Mesoscale Discussion | SPC | Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 30 more | 114 min |
| Jun 30, 10:24 PM CDT | Mesoscale Discussion | SPC | Foard, Hardeman, Knox, Wichita, Wilbarger | 66 min |
| Jun 30, 11:58 PM CDT | Mesoscale Discussion | SPC | Bailey, Castro, Cochran, Hale, Hockley, Lamb and 2 more | 92 min |
| Jul 1, 2:34 AM CDT | Severe Thunderstorm Watch | SPC | Borden, Callahan, Coke, Coleman, Crosby, Dawson and 14 more | 5 hr |
| Jul 1, 5:25 AM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Comanche, Eastland and 6 more | 2 hr |
| Jul 1, 11:33 AM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Camp, Cass, Cherokee, Ellis and 27 more | 117 min |
| Jul 1, 4:32 PM CDT | Mesoscale Discussion | SPC | Bailey, Cochran | 118 min |
Nearby
Mesoscale Discussions in Texas, 2017Every mesoscale discussion in 2017
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.