Alert archive / Illinois / Mesoscale Discussions in 2025

Mesoscale Discussion 481

April 19, 202528 counties in Illinois; 14 counties in Indiana; 10 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Apr 19, 2025, 5:35 AM CDT for 28 counties in Illinois; 14 counties in Indiana; 10 counties in Missouri. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Apr 19, 2025, 5:35 AM CDT (10:35 UTC)
Expired
Apr 19, 2025, 8:00 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch possible
Chance of a watch
60%
All 52 counties

Clark County, IL, Clay County, IL, Clinton County, IL, Crawford County, IL, Cumberland County, IL, Edwards County, IL, Effingham County, IL, Fayette County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Jackson County, IL, Jasper County, IL, Jefferson County, IL, Lawrence County, IL, Marion County, IL, Monroe County, IL, Perry County, IL, Randolph County, IL, Richland County, IL, Saint Clair County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Clay County, IN, Daviess County, IN, Dubois County, IN, Gibson County, IN, Greene County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Owen County, IN, Pike County, IN, Posey County, IN, Sullivan County, IN, Vanderburgh County, IN, Vigo County, IN, Bollinger County, MO, Cape Girardeau County, MO, Iron County, MO, Madison County, MO, Perry County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO, Wayne County, MO

The radar

The Evansville,IN radar (KVWX), 111 km from the middle of the area, began a volume at 10:37 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 19, 3:05 AM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Cumberland, Edwards, Effingham and 5 more115 min
Apr 19, 2:25 PM CDTMesoscale DiscussionSPCBartholomew, Clark, Crawford, Dearborn, Decatur, Dubois and 16 more2 hr
Apr 18, 8:35 PM CDTMesoscale DiscussionSPCBarry, Camden, Carter, Christian, Crawford, Dade and 26 more85 min
Apr 18, 8:56 PM CDTSevere Thunderstorm WatchSPCBarry, Camden, Cedar, Christian, Crawford, Dade and 37 more8 hr
Apr 18, 11:01 PM CDTMesoscale DiscussionSPCChristian, Dent, Douglas, Iron, Madison, Reynolds and 4 more89 min
Apr 19, 1:42 AM CDTMesoscale DiscussionSPCBarry, Carter, Christian, Crawford, Dent, Douglas and 15 more2 hr

Nearby

Mesoscale Discussions in Illinois, 2025Mesoscale Discussions in Indiana, 2025Mesoscale Discussions in Missouri, 2025Every mesoscale discussion in 2025

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.