Alert archive / South Dakota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 142, NWS Aberdeen, SD

July 23, 20255 counties in South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 23, 2025, 9:09 AM CDT for 5 counties in South Dakota. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 23, 2025, 9:09 AM CDT (14:09 UTC)
Expired: Jul 23, 2025, 10:00 AM CDT
In force: 51 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties Clark County, SD, Codington County, SD, Day County, SD, Hamlin County, SD, Spink County, SD

The radar

The Aberdeen radar (KABR), 83 km from the middle of the area, began a volume at 14:12 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 23, 7:56 AM CDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 2.2 hours before the alert went out and 62 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: 1911 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 755 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 23, 6:36 AM CDT, 2 hours 33 minutes earlier.

Area forecast discussion, Jul 23, 6:36 AM CDT, 2 hours 33 minutes before

<!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>

Hazardous weather outlook, Jul 23, 3:20 AM CDT, 5 hours 49 minutes before

Hazardous Weather Outlook
National Weather Service Aberdeen SD
320 AM CDT Wed Jul 23 2025

SDZ016-033>035-045-240830-
Potter-Stanley-Sully-Hughes-Jones-
320 AM CDT Wed Jul 23 2025 /220 AM MDT Wed Jul 23 2025/

This Hazardous Weather Outlook is for central South Dakota and
north central South Dakota.

.DAY ONE...Today and tonight.

There is a Marginal Risk, level 1 of 5, for severe storms, primarily
this evening into tonight. Hail of 1 inch in diameter and wind gusts
of 60 mph are the main threats with these storms.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested. Weather spotters are encouraged
to submit reports to the National Weather Service in Aberdeen. The
public can submit reports on our web page, Facebook page, or our X
feed.

MNZ039-046-SDZ011-017>023-036-037-048-051-240830-
Traverse-Big Stone-Day-Faulk-Spink-Clark-Codington-Grant-Hamlin-
Deuel-Hyde-Hand-Lyman-Buffalo-
320 AM CDT Wed Jul 23 2025

This Hazardous Weather Outlook is for west central Minnesota,
central South Dakota, north central South Dakota and northeast
South Dakota.

.DAY ONE...Today and tonight.

There is a Marginal Risk, level 1 of 5, for severe storms, primarily
late this morning into the early afternoon. Hail of 1 inch in
diameter and wind gusts of 60 mph are the main threats with these
storms.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested. Weather spotters are encouraged
to submit reports to the National Weather Service in Aberdeen. The
public can submit reports on our web page, Facebook page, or our X
feed.

SDZ006>008-240830-
Brown-Marshall-Roberts-
320 AM CDT Wed Jul 23 2025

This Hazardous Weather Outlook is for northeast South Dakota.

.DAY ONE...Today and tonight.

There is a Marginal Risk, level 1 of 5, for severe storms, primarily
late this morning into the early afternoon. Hail of 1 inch in
diameter and wind gusts of 60 mph are the main threats with these
storms.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

There is a Marginal Risk, level 1 of 5, for severe storms on Friday.
Hail of 1 inch in diameter and wind gusts of 60 mph are the main
threats with these storms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested. Weather spotters are encouraged
to submit reports to the National Weather Service in Aberdeen. The
public can submit reports on our web page, Facebook page, or our X
feed.

SDZ003>005-009-010-015-240830-
Corson-Campbell-McPherson-Walworth-Edmunds-Dewey-
320 AM CDT Wed Jul 23 2025 /220 AM MDT Wed Jul 23 2025/

This Hazardous Weather Outlook is for north central South Dakota.

.DAY ONE...Today and tonight.

There is a Marginal Risk, level 1 of 5, for severe storms, primarily
this evening into tonight. Hail of 1 inch in diameter and wind gusts
of 60 mph are the main threats with these storms.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

There is a Marginal Risk, level 1 of 5, for severe storms on Friday.
Hail of 1 inch in diameter and wind gusts of 60 mph are the main
threats with these storms.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested. Weather spotters are encouraged
to submit reports to the National Weather Service in Aberdeen. The
public can submit reports on our web page, Facebook page, or our X
feed.

In the hours before

Local storm report, Jul 23, 8:28 AM CDT, 41 minutes before

<!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>

Local storm report, Jul 23, 8:29 AM CDT, 40 minutes before

<!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>

Local storm report, Jul 23, 8:36 AM CDT, 33 minutes before

<!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>

Local storm report, Jul 23, 8:42 AM CDT, 27 minutes before

<!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>

Local storm report, Jul 23, 8:49 AM CDT, 20 minutes before

<!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>

Local storm report, Jul 23, 8:55 AM CDT, 14 minutes before

<!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>

The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 23, 5:11 AM CDT	Severe Thunderstorm Warning	ABR	Dewey, Stanley	49 min
Jul 23, 5:58 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, Potter, Stanley, Sully and 1 more	47 min
Jul 23, 6:00 AM CDT	Flash Flood Warning	ABR	Corson	3 hr
Jul 23, 6:44 AM CDT	Severe Thunderstorm Warning	ABR	Campbell, Dewey, Edmunds, Faulk, Hand, Hyde and 4 more	46 min
Jul 23, 7:01 AM CDT	Special Weather Statement	ABR	Hand, Hughes, Hyde, Jones, Lyman	44 min
Jul 23, 7:15 AM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	45 min
Jul 23, 7:27 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Edmunds, Faulk, Hand, Hyde, Potter, Sully and 1 more	48 min
Jul 23, 7:51 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Buffalo, Hand, Hughes, Hyde, Jones, Lyman and 1 more	39 min
Jul 23, 7:56 AM CDT	Severe Thunderstorm Warning	ABR	Hand, Spink	49 min
Jul 23, 8:13 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Brown, Edmunds, Faulk, Hand, Spink	62 min
Jul 23, 8:26 AM CDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Buffalo, Hand, Hughes, Hyde, Lyman, Spink and 2 more	49 min
Jul 23, 8:37 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Clark, Spink	38 min
Jul 23, 8:48 AM CDT	Areal Flood Warning	ABR	Corson	4 hr
Jul 23, 9:06 AM CDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Faulk, Hand, Hyde, Potter, Spink, Sully	54 min
Jul 23, 9:20 AM CDT	Special Weather Statement	ABR	Codington, Grant	25 min
Jul 23, 9:53 AM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Day, Spink	39 min
Jul 23, 9:59 AM CDT	Areal Flood Warning	ABR	Clark, Spink	6 hr
Jul 23, 10:00 AM CDT	Special Weather Statement	ABR	Day	30 min
Jul 23, 10:24 AM CDT	High Wind Warning	ABR	Clark, Codington, Hamlin	73 min
Jul 22, 7:27 PM CDT	Severe Thunderstorm Warning	ABR	Traverse	20 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2025 Every severe thunderstorm warning 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.