Alert archive / Illinois / Mesoscale Discussions in 2013
Mesoscale Discussion 324
The Storm Prediction Center issued this mesoscale discussion at Mar 24, 2013, 11:52 AM CDT for 33 counties in Illinois; Fountain County, Vermillion County, Warren County, Indiana; 8 counties in Missouri. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 24, 2013, 11:52 AM CDT (16:52 UTC)
- Expired
- Mar 24, 2013, 4:45 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 44 counties
Bond County, IL, Calhoun County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Coles County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Fayette County, IL, Ford County, IL, Greene County, IL, Iroquois County, IL, Jersey County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Piatt County, IL, Pike County, IL, Sangamon County, IL, Scott County, IL, Shelby County, IL, Tazewell County, IL, Vermilion County, IL, Fountain County, IN, Vermillion County, IN, Warren County, IN, City of Saint Louis, MO, Franklin County, MO, Lincoln County, MO, Montgomery County, MO, Pike County, MO, Saint Charles County, MO, Saint Louis County, MO, Warren County, MO
The radar
The Lincoln radar (KILX), 55 km from the middle of the area, began a volume at 16:53 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
Nashville Metro, TN (KBNA), launched 12:00Z, 4.9 hours before the alert went out and 457 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
- 465 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 79 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 24, 7:29 AM CDT | Mesoscale Discussion | SPC | Calhoun, Greene, Jersey, Madison, Pike | 4 hr |
| Mar 24, 9:12 AM CDT | Mesoscale Discussion | SPC | Cass, Christian, DeWitt, Effingham, Fayette, Logan and 9 more | 3 hr |
| Mar 24, 11:48 AM CDT | Mesoscale Discussion | SPC | Spencer, Vanderburgh, Warrick | 117 min |
| Mar 24, 2:37 PM CDT | Mesoscale Discussion | SPC | Blackford, Boone, Carroll, Cass, Clay, Clinton and 21 more | 4 hr |
| Mar 24, 6:13 PM CDT | Mesoscale Discussion | SPC | Adams, Blackford, Boone, Carroll, Cass, Clinton and 20 more | 6 hr |
| Mar 24, 3:30 AM CDT | Mesoscale Discussion | SPC | Andrew, Bates, Buchanan, Cass, Clay, Clinton and 6 more | 4 hr |
Nearby
Mesoscale Discussions in Illinois, 2013Mesoscale Discussions in Missouri, 2013Mesoscale Discussions in Indiana, 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.