Alert archive / Louisiana / Mesoscale Discussions in 2007
Mesoscale Discussion 287
The Storm Prediction Center issued this mesoscale discussion at Mar 14, 2007, 6:17 PM CDT for 10 parishes in Louisiana; Jefferson County, Orange County, Texas. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Mar 14, 2007, 6:17 PM CDT (23:17 UTC)
- Expired
- Mar 14, 2007, 7:45 PM CDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
Counties Acadia Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, Iberia Parish, LA, Iberville Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA, Jefferson County, TX, Orange County, TX
The radar
The Lake Charles radar (KLCH), 86 km from the middle of the area, began a volume at 23:16 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 11.3 hours before the alert went out and 272 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
- 499 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 670 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 84 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 |
|---|---|---|---|---|
| Mar 13, 9:35 PM CDT | Mesoscale Discussion | SPC | Aransas, Bee, Brazoria, Calhoun, Chambers, Goliad and 6 more | 115 min |
| Mar 13, 11:11 PM CDT | Mesoscale Discussion | SPC | Brooks, Jim Hogg, Kenedy | 64 min |
| Mar 14, 9:52 AM CDT | Mesoscale Discussion | SPC | Aransas, Atascosa, Austin, Bastrop, Bee, Bell and 37 more | 113 min |
| Mar 14, 10:34 AM CDT | Severe Thunderstorm Watch | SPC | Aransas, Austin, Bee, Brazoria, Brazos, Burleson and 24 more | 8 hr |
| Mar 14, 1:05 PM CDT | Mesoscale Discussion | SPC | Angelina, Austin, Bastrop, Bell, Brazoria, Brazos and 33 more | 85 min |
| Mar 14, 3:11 PM CDT | Mesoscale Discussion | SPC | Aransas, Austin, Bastrop, Bee, Brazoria, Caldwell and 25 more | 94 min |
| Mar 14, 6:46 PM CDT | Mesoscale Discussion | SPC | Aransas, Austin, Bee, Calhoun, Colorado, DeWitt and 10 more | 59 min |
Nearby
Mesoscale Discussions in Louisiana, 2007Mesoscale Discussions in Texas, 2007Every mesoscale discussion in 2007
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.