Alert archive / Texas / Mesoscale Discussions in 2015
Mesoscale Discussion 1949
The Storm Prediction Center issued this mesoscale discussion at Nov 16, 2015, 2:31 PM CST for 30 counties in Texas. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Nov 16, 2015, 2:31 PM CST (20:31 UTC)
- Expired
- Nov 16, 2015, 3:30 PM CST
- In force
- 59 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 30 counties
Austin County, TX, Bastrop County, TX, Bell County, TX, Brazos County, TX, Burleson County, TX, Caldwell County, TX, Colorado County, TX, Falls County, TX, Fayette County, TX, Fort Bend County, TX, Freestone County, TX, Gonzales County, TX, Grimes County, TX, Harris County, TX, Jackson County, TX, Lavaca County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, McLennan County, TX, Milam County, TX, Montgomery County, TX, Robertson County, TX, Travis County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Williamson County, TX
The radar
The Ft Hood radar (KGRK), 83 km from the middle of the area, began a volume at 20:35 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
Fort Worth, TX (KFWD), launched 12:00Z, 8.5 hours before the alert went out and 278 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
- 567 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 432 m²/s²
- 0-3 km storm-relative helicity
- 392 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 |
|---|---|---|---|---|
| Nov 16, 12:44 PM CST | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Dallam, Deaf Smith and 16 more | 3 hr |
| Nov 16, 1:00 PM CST | Tornado Watch | SPC | Armstrong, Bailey, Briscoe, Carson, Castro, Cochran and 35 more | 8 hr |
| Nov 16, 3:51 PM CST | Mesoscale Discussion | SPC | Armstrong, Bailey, Briscoe, Carson, Castro, Cochran and 29 more | 114 min |
| Nov 16, 5:50 PM CST | Mesoscale Discussion | SPC | Andrews, Borden, Crane, Dawson, Ector, Gaines and 10 more | 55 min |
| Nov 16, 5:56 PM CST | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Childress, Collingsworth, Crosby and 14 more | 94 min |
Nearby
Mesoscale Discussions in Texas, 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.