Alert archive / Illinois / Mesoscale Discussions in 2022

Mesoscale Discussion 600

April 30, 202234 counties in Illinois; 7 counties in Indiana

The Storm Prediction Center issued this mesoscale discussion at Apr 30, 2022, 6:02 PM CDT for 34 counties in Illinois; 7 counties in Indiana. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued
Apr 30, 2022, 6:02 PM CDT (23:02 UTC)
Expired
Apr 30, 2022, 8:00 PM CDT
In force
118 min
Issued by
the Storm Prediction Center
Concerning
Tornado watch 163
All 41 counties

Boone County, IL, Champaign County, IL, Christian County, IL, Coles County, IL, Cook County, IL, DeKalb County, IL, DeWitt County, IL, Douglas County, IL, DuPage County, IL, Edgar County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, McHenry County, IL, McLean County, IL, Moultrie County, IL, Ogle County, IL, Piatt County, IL, Putnam County, IL, Sangamon County, IL, Tazewell County, IL, Vermilion County, IL, Will County, IL, Woodford County, IL, Benton County, IN, Fountain County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Vermillion County, IN, Warren County, IN

The radar

The Lincoln radar (KILX), 101 km from the middle of the area, began a volume at 23:02 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 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.

IssuedProductOfficeCountiesLasted
Apr 30, 12:32 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cass, Christian, DeKalb and 33 more118 min
Apr 30, 1:09 PM CDTMesoscale DiscussionSPCAlexander, Clinton, Franklin, Jackson, Jefferson, Johnson and 9 more2 hr
Apr 30, 1:46 PM CDTTornado WatchSPCBoone, Bureau, Carroll, Champaign, Christian, Clark and 49 more8 hr
Apr 30, 2:03 PM CDTTornado WatchSPCAlexander, Bond, Clinton, Fayette, Franklin, Jackson and 11 more8 hr
Apr 30, 2:43 PM CDTMesoscale DiscussionSPCRock Island92 min
Apr 30, 3:20 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Ford and 25 more85 min
Apr 30, 3:57 PM CDTMesoscale DiscussionSPCClinton, Madison, Monroe, Perry, Randolph, Saint Clair and 1 more63 min
Apr 30, 5:27 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more2 hr

Nearby

Mesoscale Discussions in Illinois, 2022Mesoscale Discussions in Indiana, 2022Every mesoscale discussion in 2022

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.