Alert archive / Texas / Mesoscale Discussions in 2009
Mesoscale Discussion 927
The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2009, 5:16 PM CDT for 42 counties in Texas. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Jun 2, 2009, 5:16 PM CDT (22:16 UTC)
- Expired
- Jun 2, 2009, 6:45 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
All 42 counties
Borden County, TX, Brown County, TX, Burnet County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Crosby County, TX, Dawson County, TX, Eastland County, TX, Fisher County, TX, Garza County, TX, Glasscock County, TX, Hockley County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Kent County, TX, Lampasas County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Midland County, TX, Mills County, TX, Mitchell County, TX, Nolan County, TX, Reagan County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Scurry County, TX, Shackelford County, TX, Stephens County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Terry County, TX, Tom Green County, TX
The radar
The San Angelo radar (KSJT), 62 km from the middle of the area, began a volume at 22:16 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, 10.3 hours before the alert went out and 154 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
- 1485 J/kg
- Mixed-layer CIN
- -250 J/kg
- Mixed-layer LCL
- 1565 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 156 m²/s²
- 0-3 km storm-relative helicity
- 167 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 |
|---|---|---|---|---|
| Jun 2, 3:32 AM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Foard, King, Knox, Throckmorton and 1 more | 118 min |
| Jun 2, 2:24 PM CDT | Mesoscale Discussion | SPC | Borden, Brown, Callahan, Cochran, Coke, Coleman and 27 more | 66 min |
| Jun 2, 2:46 PM CDT | Tornado Watch | SPC | Andrews, Bailey, Borden, Brown, Callahan, Cochran and 47 more | 7 hr |
| Jun 2, 4:05 PM CDT | Mesoscale Discussion | SPC | Gray, Hemphill, Wheeler | 55 min |
Nearby
Mesoscale Discussions in Texas, 2009Every mesoscale discussion in 2009
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.