Alert archive / Indiana / Mesoscale Discussions in 2013
Mesoscale Discussion 428
The Storm Prediction Center issued this mesoscale discussion at Apr 10, 2013, 2:59 PM CDT for 11 counties in Illinois; 33 counties in Indiana; 29 counties in Ohio. It was in force for 61 min.
The area
The outline as issued.
The facts
- Issued
- Apr 10, 2013, 2:59 PM CDT (19:59 UTC)
- Expired
- Apr 10, 2013, 4:00 PM CDT
- In force
- 61 min
- Issued by
- the Storm Prediction Center
All 73 counties
Clark County, IL, Clay County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Jasper County, IL, Moultrie County, IL, Vermilion County, IL, Adams County, IN, Blackford County, IN, Boone County, IN, Clay County, IN, Clinton County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jay County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Tipton County, IN, Union County, IN, Vermillion County, IN, Vigo County, IN, Wayne County, IN, Wells County, IN, Allen County, OH, Ashland County, OH, Auglaize County, OH, Champaign County, OH, Clark County, OH, Crawford County, OH, Darke County, OH, Delaware County, OH, Franklin County, OH, Hancock County, OH, Hardin County, OH, Huron County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Lorain County, OH, Madison County, OH, Marion County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Preble County, OH, Richland County, OH, Seneca County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Wyandot County, OH
The radar
The Indianapolis radar (KIND), 20 km from the middle of the area, began a volume at 20:00 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.0 hours before the alert went out and 198 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
- 407 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1096 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 199 m²/s²
- 0-3 km storm-relative helicity
- 171 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 |
|---|---|---|---|---|
| Apr 10, 12:36 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Coles, Crawford and 11 more | 84 min |
| Apr 10, 12:53 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 10 more | 7 hr |
| Apr 10, 1:03 PM CDT | Mesoscale Discussion | SPC | Alexander, Jackson, Monroe, Perry, Randolph, Saint Clair and 2 more | 117 min |
| Apr 10, 1:46 PM CDT | Tornado Watch | SPC | Alexander, Bond, Clinton, Edwards, Fayette, Franklin and 17 more | 7 hr |
| Apr 10, 3:01 PM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Clinton, Franklin, Jackson, Jefferson and 10 more | 119 min |
| Apr 10, 6:09 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Brown, Calhoun, Cass, Champaign and 39 more | 96 min |
| Apr 10, 6:52 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 33 more | 7 hr |
| Apr 10, 12:33 PM CDT | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Guernsey, Harrison, Jefferson and 5 more | 117 min |
| Apr 10, 4:59 PM CDT | Mesoscale Discussion | SPC | Carroll, Columbiana, Coshocton, Harrison, Jefferson, Mahoning and 2 more | 61 min |
| Apr 10, 5:13 PM CDT | Severe Thunderstorm Watch | SPC | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 3 more | 5 hr |
Nearby
Mesoscale Discussions in Indiana, 2013Mesoscale Discussions in Ohio, 2013Mesoscale Discussions in Illinois, 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.