Alert archive / South Dakota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 261, NWS Aberdeen, SD

August 30, 2026Corson County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 30, 2026, 5:55 PM MDT for Corson County, South Dakota. It was in force for 65 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: Aug 30, 2026, 5:55 PM MDT (23:55 UTC)
Expired: Aug 30, 2026, 7:00 PM MDT
In force: 65 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Corson County, SD

The radar

The Bismarck radar (KBIS), 123 km from the middle of the area, began a volume at 23:58 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
Aug 30, 3:38 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

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 Aug 30, 5:21 PM MDT, 34 minutes earlier.

Area forecast discussion, Aug 30, 5:21 PM MDT, 34 minutes before

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Hazardous weather outlook, Aug 30, 7:13 AM MDT, 10 hours 42 minutes before

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In the hours before

Local storm report, Aug 30, 12:27 PM MDT, 5 hours 28 minutes before

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Local storm report, Aug 30, 12:43 PM MDT, 5 hours 12 minutes before

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Local storm report, Aug 30, 12:59 PM MDT, 4 hours 56 minutes before

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Local storm report, Aug 30, 1:32 PM MDT, 4 hours 23 minutes before

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Local storm report, Aug 30, 2:13 PM MDT, 3 hours 42 minutes before

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      <p id="message2">
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Aug 30, 5:47 PM MDT, 8 minutes before

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      <p id="message1">
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      <p id="message2">
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 29, 6:12 PM MDT	Severe Thunderstorm Warning Considerable damage threat	ABR	McPherson	51 min
Aug 29, 6:16 PM MDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Faulk, Hand, Hyde, Potter	44 min
Aug 29, 6:38 PM MDT	Severe Thunderstorm Warning	ABR	Dewey	34 min
Aug 29, 6:58 PM MDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Dewey, Potter, Walworth	47 min
Aug 29, 7:07 PM MDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Faulk, Hand, Hyde	53 min
Aug 29, 7:42 PM MDT	Special Weather Statement	ABR	Potter	33 min
Aug 29, 7:54 PM MDT	Severe Thunderstorm Warning	ABR	Faulk, Hand, Hyde	51 min
Aug 29, 8:06 PM MDT	Severe Thunderstorm Warning	ABR	Potter, Sully	27 min
Aug 29, 8:37 PM MDT	Severe Thunderstorm Warning	ABR	Hand	30 min
Aug 29, 8:52 PM MDT	Special Weather Statement	ABR	Hand	38 min
Aug 29, 9:03 PM MDT	Severe Thunderstorm Warning	ABR	Hand	57 min
Aug 29, 9:23 PM MDT	Severe Thunderstorm Warning	ABR	Dewey	52 min
Aug 29, 9:41 PM MDT	Severe Thunderstorm Warning	ABR	Potter, Sully	36 min
Aug 29, 10:11 PM MDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Dewey	49 min
Aug 29, 10:45 PM MDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Dewey, Potter, Sully	60 min
Aug 29, 11:39 PM MDT	Severe Thunderstorm Warning Destructive damage threat	ABR	Dewey, Potter, Sully	42 min
Aug 30, 1:23 AM MDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, Spink	39 min
Aug 30, 1:45 AM MDT	Severe Thunderstorm Warning Considerable damage threat	ABR	Brown, Spink	45 min
Aug 30, 2:28 AM MDT	Severe Thunderstorm Warning	ABR	Brown, Day, Spink	26 min
Aug 30, 4:59 PM MDT	Severe Thunderstorm Warning	ABR	Corson	61 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2026 Every severe thunderstorm warning in 2026

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.