Alert archive / Louisiana / Mesoscale Discussions in 2025

Mesoscale Discussion 48

January 21, 2025Baldwin County, Mobile County, Alabama; 25 parishes in Louisiana; 15 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at Jan 21, 2025, 8:46 AM CST for Baldwin County, Mobile County, Alabama; 25 parishes in Louisiana; 15 counties in Mississippi. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Jan 21, 2025, 8:46 AM CST (14:46 UTC)
Expired: Jan 21, 2025, 12:45 PM CST
In force: 4 hr
Issued by: the Storm Prediction Center
Concerning: Heavy snow

All 42 counties

Baldwin County, AL, Mobile County, AL, Ascension Parish, LA, Assumption Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberia Parish, LA, Iberville Parish, LA, Jefferson Parish, LA, Lafourche Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Martin Parish, LA, Saint Tammany Parish, LA, St. Mary Parish, LA, Tangipahoa Parish, LA, Terrebonne Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, Forrest County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Lamar County, MS, Marion County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Stone County, MS, Walthall County, MS, Wilkinson County, MS

The radar

The Hammond radar (KHDC), 80 km from the middle of the area, began a volume at 14:48 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.

Issued	Product	Office	Counties	Lasted
Jan 21, 2:03 PM CST	Mesoscale Discussion	SPC	Baldwin, Coffee, Conecuh, Covington, Crenshaw, Dale and 4 more	3 hr
Jan 21, 4:52 PM CST	Mesoscale Discussion	SPC	Baldwin, Butler, Coffee, Conecuh, Covington, Crenshaw and 7 more	6 hr
Jan 21, 4:47 AM CST	Mesoscale Discussion	SPC	Acadia, Allen, Beauregard, Calcasieu, Cameron, Evangeline and 8 more	4 hr

Nearby

Mesoscale Discussions in Louisiana, 2025 Mesoscale Discussions in Mississippi, 2025 Mesoscale Discussions in Alabama, 2025 Every 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.