Alert archive / Illinois / Mesoscale Discussions in 2009
Mesoscale Discussion 817
The Storm Prediction Center issued this mesoscale discussion at May 13, 2009, 6:05 PM CDT for 23 counties in Illinois; 21 counties in Indiana; Henderson County, Union County, Kentucky. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- May 13, 2009, 6:05 PM CDT (23:05 UTC)
- Expired
- May 13, 2009, 7:30 PM CDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
All 46 counties
Clark County, IL, Clay County, IL, Crawford County, IL, Edwards County, IL, Effingham County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jasper County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Marion County, IL, Perry County, IL, Richland County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Clay County, IN, Crawford County, IN, Daviess County, IN, Dubois County, IN, Gibson County, IN, Greene County, IN, Jackson County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Orange County, IN, Owen County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Sullivan County, IN, Vanderburgh County, IN, Vigo County, IN, Warrick County, IN, Henderson County, KY, Union County, KY
The radar
The Evansville,IN radar (KVWX), 31 km from the middle of the area, began a volume at 23:07 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 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 |
|---|---|---|---|---|
| May 13, 9:27 AM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 54 more | 63 min |
| May 13, 1:15 PM CDT | Mesoscale Discussion | SPC | Bond, Clinton, Franklin, Jackson, Jefferson, Macoupin and 7 more | 30 min |
| May 13, 1:52 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Greene, Hancock, Jersey and 3 more | 23 min |
| May 13, 2:39 PM CDT | Tornado Watch | SPC | Adams, Brown, Bureau, Calhoun, Cass, Fulton and 16 more | 7 hr |
| May 13, 3:00 PM CDT | Tornado Watch | SPC | Bond, Clark, Clay, Clinton, Crawford, Cumberland and 24 more | 5 hr |
| May 13, 5:47 PM CDT | Mesoscale Discussion | SPC | Adams, Boone, Brown, Bureau, Carroll, Cass and 50 more | 88 min |
| May 13, 6:02 PM CDT | Tornado Watch | SPC | Boone, Champaign, Cook, DeKalb, DeWitt, DuPage and 26 more | 5 hr |
Nearby
Mesoscale Discussions in Illinois, 2009Mesoscale Discussions in Indiana, 2009Mesoscale Discussions in Kentucky, 2009Every mesoscale discussion in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.