Alert archive / Oklahoma / Mesoscale Discussions in 2025

Mesoscale Discussion 976

May 25, 202512 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 25, 2025, 5:24 PM CDT for 12 counties in Oklahoma. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued: May 25, 2025, 5:24 PM CDT (22:24 UTC)
Expired: May 25, 2025, 7:00 PM CDT
In force: 96 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 323

Counties Canadian County, OK, Cleveland County, OK, Grady County, OK, Hughes County, OK, Lincoln County, OK, McClain County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK

The radar

The Norman radar (KTLX), 44 km from the middle of the area, began a volume at 22:28 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.

Severe Thunderstorm Watch 327May 25, 7:40 PM CDT

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 10.4 hours before the alert went out and 56 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1007 J/kg
Mixed-layer CIN: -523 J/kg
Mixed-layer LCL: 1267 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 232 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 24, 7:52 PM CDT	Mesoscale Discussion	SPC	Beckham, Blaine, Caddo, Canadian, Cleveland, Custer and 13 more	83 min
May 24, 9:13 PM CDT	Tornado Watch	SPC	Beckham, Blaine, Caddo, Canadian, Comanche, Custer and 7 more	4 hr
May 24, 9:15 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Cherokee, Craig, Creek, Delaware, Garfield and 17 more	90 min
May 24, 11:12 PM CDT	Mesoscale Discussion	SPC	Blaine, Caddo, Canadian, Custer, Dewey, Washita	93 min
May 24, 11:52 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Alfalfa, Cherokee, Craig, Creek, Delaware and 25 more	9 hr
May 25, 1:46 AM CDT	Mesoscale Discussion	SPC	Adair, Cherokee, Delaware, Kay, Mayes, Nowata and 6 more	89 min
May 25, 5:24 AM CDT	Mesoscale Discussion	SPC	Adair, Alfalfa, Cherokee, Craig, Creek, Delaware and 13 more	96 min
May 25, 1:38 PM CDT	Mesoscale Discussion	SPC	Atoka, Blaine, Caddo, Canadian, Cleveland, Coal and 19 more	97 min
May 25, 3:02 PM CDT	Severe Thunderstorm Watch	SPC	Atoka, Bryan, Canadian, Carter, Choctaw, Cleveland and 20 more	6 hr
May 25, 3:47 PM CDT	Tornado Watch	SPC	Harmon, Jackson, Tillman	9 hr
May 25, 5:49 PM CDT	Mesoscale Discussion	SPC	Beaver, Cimarron, Texas	116 min
May 25, 6:07 PM CDT	Severe Thunderstorm Watch	SPC	Beaver, Cimarron, Texas	7 hr
May 25, 6:27 PM CDT	Mesoscale Discussion	SPC	Beckham, Bryan, Caddo, Canadian, Carter, Comanche and 16 more	2 hr

Nearby

Mesoscale Discussions in Oklahoma, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.