Alert archive / Oklahoma / Mesoscale Discussions in 2013
Mesoscale Discussion 346
The Storm Prediction Center issued this mesoscale discussion at Mar 30, 2013, 7:37 PM CDT for 15 counties in Oklahoma. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2013, 7:37 PM CDT (00:37 UTC)
- Expired
- Mar 30, 2013, 8:30 PM CDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
Counties Adair County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okmulgee County, OK, Rogers County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 7 km from the middle of the area, began a volume at 00:36 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
Lamont, OK (KLMN), launched 00:00Z, 0.6 hours before the alert went out and 172 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
- 354 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 2229 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
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 30, 8:14 PM CDT | Mesoscale Discussion | SPC | Atoka, Carter, Cleveland, Coal, Comanche, Cotton and 17 more | 91 min |
| Mar 30, 9:06 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more | 5 hr |
| Mar 30, 10:44 PM CDT | Mesoscale Discussion | SPC | Adair, Atoka, Cherokee, Coal, Haskell, Latimer and 6 more | 91 min |
| Mar 31, 1:13 AM CDT | Mesoscale Discussion | SPC | Beckham, Blaine, Caddo, Canadian, Carter, Cleveland and 23 more | 62 min |
| Mar 31, 4:54 AM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Comanche and 12 more | 96 min |
| Mar 31, 5:10 AM CDT | Severe Thunderstorm Watch | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Cotton and 13 more | 7 hr |
| Mar 31, 7:36 AM CDT | Mesoscale Discussion | SPC | Choctaw, McCurtain | 114 min |
Nearby
Mesoscale Discussions in Oklahoma, 2013Every mesoscale discussion in 2013
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.