Alert archive / South Dakota / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 162, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 27, 2025, 6:19 PM CDT for 4 counties in South Dakota. It was in force for 41 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 27, 2025, 6:19 PM CDT (23:19 UTC)
- Expired
- Jul 27, 2025, 7:00 PM CDT
- In force
- 41 min
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Tornado
- Possible
- Damage threat
- Considerable
- Hail
- 2.0 in
- Wind
- 60.0 mph
Counties Codington County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD
The radar
The Aberdeen radar (KABR), 130 km from the middle of the area, began a volume at 23:20 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 27, 4:47 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 11.3 hours before the alert went out and 114 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.
- Mixed-layer CAPE
- 1882 J/kg
- Mixed-layer CIN
- -246 J/kg
- Mixed-layer LCL
- 1193 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 27, 2:34 PM CDT, 3 hours 45 minutes earlier.
Area forecast discussion, Jul 27, 2:34 PM CDT, 3 hours 45 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 27, 3:23 PM CDT, 2 hours 56 minutes before
Hazardous Weather Outlook National Weather Service Aberdeen SD 323 PM CDT Sun Jul 27 2025 SDZ003>005-009-015-016-282030- Corson-Campbell-McPherson-Walworth-Dewey-Potter- 323 PM CDT Sun Jul 27 2025 /223 PM MDT Sun Jul 27 2025/ This Hazardous Weather Outlook is for north central South Dakota. .DAY ONE...This afternoon and tonight. There is a marginal risk (level 1 out of 5) for isolated severe storms this evening. Storms will be capable of producing winds of 60 mph and hail 1 inch in diameter. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a slight risk (level 2 out of 5) for severe storms Monday afternoon and evening. Storms will be capable of producing winds of 70 mph and hail 2 inches in diameter. .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. SDZ006-007-011-018-019-282030- Brown-Marshall-Day-Spink-Clark- 323 PM CDT Sun Jul 27 2025 This Hazardous Weather Outlook is for northeast South Dakota. .DAY ONE...This afternoon and tonight. A heat advisory will be in effect until 8 PM CDT for heat index values up to 104 degrees. There is also a slight risk (level 2 out of 5) for severe storms in the James River and on and east of the Prairie Coteau late this afternoon into the overnight hours. These storms will be capable of producing wind gusts of 70 mph and hail 2 inches in diameter. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a slight risk (level 2 out of 5) for scattered severe storms Monday evening. These storms will be capable of producing wind gusts of 70 mph and hail 2 inches in diameter. .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. SDZ010-017-034-282030- Edmunds-Faulk-Sully- 323 PM CDT Sun Jul 27 2025 This Hazardous Weather Outlook is for central South Dakota and north central South Dakota. .DAY ONE...This afternoon and tonight. A heat advisory will be in effect until 8 PM CDT for heat index values up to 104 degrees F. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a slight risk (level 2 out of 5) for scattered severe storms Monday evening. These storms will be capable of producing wind gusts of 70 mph and hail 2 inches in diameter. .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-SDZ008-020>023-282030- Traverse-Big Stone-Roberts-Codington-Grant-Hamlin-Deuel- 323 PM CDT Sun Jul 27 2025 This Hazardous Weather Outlook is for west central Minnesota and northeast South Dakota. .DAY ONE...This afternoon and tonight. A heat advisory will be in effect until 8 PM CDT for heat index values up to 104 degrees. There is also an enhanced risk (level 3 out of 5) for severe storms on and east of the Prairie Coteau late this afternoon into the overnight hours. These storms will be capable of producing wind gusts in excess of 70 mph and hail 2 inches in diameter, along with a few tornadoes. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a slight risk (level 2 out of 5) for scattered severe storms Monday evening. These storms will be capable of producing wind gusts of 70 mph and hail 2 inches in diameter. .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. SDZ033-035>037-045-048-051-282030- Stanley-Hughes-Hyde-Hand-Jones-Lyman-Buffalo- 323 PM CDT Sun Jul 27 2025 /223 PM MDT Sun Jul 27 2025/ This Hazardous Weather Outlook is for central South Dakota. .DAY ONE...This afternoon and tonight. A heat advisory will be in effect until 8 PM CDT for heat index values up to 104 degrees F. .DAYS TWO THROUGH SEVEN...Monday through Saturday. A heat advisory will be in effect on Monday from 1 PM to 8 PM CDT for heat index values up to 106 degrees. There is a slight risk (level 2 out of 5) for scattered severe storms Monday evening. These storms will be capable of producing wind gusts of 70 mph and hail 2 inches in diameter. .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. 10
In the hours before
Local storm report, Jul 27, 6:04 PM CDT, 15 minutes before
Preliminary Local Storm Report
National Weather Service Aberdeen SD
604 PM CDT Sun Jul 27 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0558 PM Tornado 7 NE Henry 44.95N 97.37W
07/27/2025 Codington SD Storm Chaser
Several storm chasers have reported a
tornado.
&&
sdThe office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 7:10 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley | 65 min |
| Jul 26, 7:12 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 46 min |
| Jul 26, 7:42 PM CDT | Severe Thunderstorm Warning | ABR | Corson, Dewey, Walworth | 16 min |
| Jul 26, 8:11 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Stanley, Sully | 49 min |
| Jul 26, 8:21 PM CDT | Areal Flood Warning | ABR | Dewey | 3 hr |
| Jul 26, 8:44 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Potter, Sully, Walworth | 46 min |
| Jul 26, 9:25 PM CDT | Special Weather Statement | ABR | Potter | 35 min |
| Jul 26, 9:58 PM CDT | Severe Thunderstorm Warning | ABR | Hand, Hyde, Spink | 62 min |
| Jul 26, 10:15 PM CDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Hyde | 45 min |
| Jul 26, 10:34 PM CDT | Severe Thunderstorm Warning | ABR | Hand | 26 min |
| Jul 26, 11:26 PM CDT | Special Weather Statement | ABR | Brown | 34 min |
| Jul 27, 2:26 AM CDT | Special Weather Statement | ABR | Corson | 34 min |
| Jul 27, 11:49 AM CDT | Severe Thunderstorm Warning | ABR | Grant | 41 min |
| Jul 27, 2:01 PM CDT | Heat Advisory | ABR | Buffalo, Hand, Hughes, Hyde, Jones, Lyman and 1 more | 29 hr |
| Jul 27, 4:25 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 50 min |
| Jul 27, 5:54 PM CDT | Tornado Warning | ABR | Codington | 36 min |
| Jul 27, 6:47 PM CDT | Tornado Warning | ABR | Codington, Hamlin | 31 min |
| Jul 27, 3:58 PM CDT | Severe Thunderstorm Warning | ABR | Traverse | 20 min |
| Jul 27, 4:11 PM CDT | Severe Thunderstorm Warning | ABR | Big Stone, Traverse | 19 min |
| Jul 27, 5:11 PM CDT | Severe Thunderstorm Warning | ABR | Big Stone | 22 min |
| Jul 27, 5:32 PM CDT | Severe Thunderstorm Warning | ABR | Big Stone, Traverse | 43 min |
| Jul 27, 6:12 PM CDT | Severe Thunderstorm Warning | ABR | Big Stone, Traverse | 48 min |
| Jul 27, 6:41 PM CDT | Areal Flood Warning | ABR | Big Stone, Traverse | 6 hr |
| Jul 27, 6:54 PM CDT | Severe Thunderstorm Warning | ABR | Big Stone, Traverse | 51 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2025Every 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.