Alert archive / Illinois / Mesoscale Discussions in 2023

Mesoscale Discussion 694

May 6, 202328 counties in Illinois; 7 counties in Iowa; 9 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 6, 2023, 8:12 PM CDT for 28 counties in Illinois; 7 counties in Iowa; 9 counties in Missouri. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: May 6, 2023, 8:12 PM CDT (01:12 UTC)
Expired: May 6, 2023, 9:45 PM CDT
In force: 93 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch likely
Chance of a watch: 95%

All 44 counties

Des Moines County, IA, Henry County, IA, Jefferson County, IA, Lee County, IA, Louisa County, IA, Van Buren County, IA, Washington County, IA, Adams County, IL, Brown County, IL, Cass County, IL, Christian County, IL, Fulton County, IL, Greene County, IL, Hancock County, IL, Henderson County, IL, Knox County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, Menard County, IL, Mercer County, IL, Montgomery County, IL, Morgan County, IL, Peoria County, IL, Pike County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Stark County, IL, Tazewell County, IL, Warren County, IL, Woodford County, IL, Clark County, MO, Knox County, MO, Lewis County, MO, Marion County, MO, Monroe County, MO, Pike County, MO, Ralls County, MO, Scotland County, MO, Shelby County, MO

The radar

The Lincoln radar (KILX), 101 km from the middle of the area, began a volume at 01:14 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.

<!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 6, 8:50 PM CDT	Severe Thunderstorm Watch	SPC	Fulton, Hancock, Henderson, Knox, McDonough, Mercer and 2 more	7 hr
May 6, 9:00 PM CDT	Tornado Watch	SPC	Adams, Brown, Pike	5 hr
May 6, 10:44 PM CDT	Severe Thunderstorm Watch	SPC	Cass, Champaign, Christian, Coles, Cumberland, DeWitt and 15 more	6 hr
May 6, 11:34 PM CDT	Mesoscale Discussion	SPC	Brown, Cass, Fulton, Hancock, Henderson, Knox and 11 more	86 min
May 7, 1:37 AM CDT	Mesoscale Discussion	SPC	Fulton, Hancock, Henderson, Knox, McDonough, Mason and 3 more	113 min
May 7, 2:21 AM CDT	Mesoscale Discussion	SPC	Clark, Coles, Cumberland, Moultrie	114 min
May 7, 4:05 AM CDT	Mesoscale Discussion	SPC	Christian, Clark, Coles, Crawford, Cumberland, Douglas and 7 more	85 min
May 7, 1:00 PM CDT	Mesoscale Discussion	SPC	Alexander, Bond, Christian, Clay, Clinton, Effingham and 30 more	2 hr
May 7, 1:18 PM CDT	Severe Thunderstorm Watch	SPC	Alexander, Bond, Calhoun, Cass, Christian, Clay and 47 more	10 hr
May 7, 3:40 PM CDT	Mesoscale Discussion	SPC	Bond, Cass, Christian, Clay, Clinton, Edwards and 35 more	65 min
May 7, 4:10 PM CDT	Severe Thunderstorm Watch	SPC	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 10 more	10 hr
May 7, 5:35 PM CDT	Mesoscale Discussion	SPC	Bureau, Carroll, Cass, Fulton, Hancock, Henderson and 11 more	85 min
May 7, 6:10 PM CDT	Mesoscale Discussion	SPC	Bond, Cass, Christian, Greene, Jersey, Macoupin and 8 more	2 hr
May 7, 6:40 PM CDT	Mesoscale Discussion	SPC	Ford, Grundy, Iroquois, Kankakee, Kendall, LaSalle and 2 more	65 min
May 7, 6:58 PM CDT	Severe Thunderstorm Watch	SPC	Ford, Grundy, Iroquois, Kankakee, Kendall, LaSalle and 5 more	5 hr
May 7, 4:51 AM CDT	Mesoscale Discussion	SPC	Adair, Audubon, Carroll, Cass, Crawford, Guthrie and 7 more	2 hr
May 7, 2:10 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Appanoose, Audubon, Boone, Carroll and 41 more	2 hr
May 7, 6:02 PM CDT	Mesoscale Discussion	SPC	Adams, Cass, Fremont, Harrison, Mills, Montgomery and 3 more	88 min
May 7, 6:45 PM CDT	Severe Thunderstorm Watch	SPC	Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more	6 hr
May 6, 11:24 PM CDT	Mesoscale Discussion	SPC	Marion, Ralls, Shelby	96 min

Nearby

Mesoscale Discussions in Illinois, 2023 Mesoscale Discussions in Missouri, 2023 Mesoscale Discussions in Iowa, 2023 Every mesoscale discussion in 2023

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.