Severe Thunderstorm Warning for Potter and Sully Counties, SD

Source: NOAA · Central South Dakota

This alert is no longer in effect.

NOAA issued it on August 30, 2026, 2 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).

Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

NWS Aberdeen has issued a Severe Thunderstorm Warning for northeastern Sully County and southwestern Potter County in South Dakota until 11:45 PM CDT August 29.

Read this weather record in 30 seconds

Record type
Severe Thunderstorm Warning
Affected area
Central South Dakota
Issued
August 30, 2026
Issuing authority
NWS Aberdeen SD

Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.

Record status: historical. It was issued 2 weeks ago; use the issuing agency's live warning service for current conditions in Central South Dakota.

Alert Details

A Severe Thunderstorm Warning was issued by the National Weather Service in Aberdeen SD at 10:41 PM CDT on August 29. The alert is effective from 10:41 PM CDT until 11:45 PM CDT on August 29.

Affected Areas

The warning covers northeastern Sully County in central South Dakota and southwestern Potter County in north central South Dakota.

What You Should Do

Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds and large hail.

Expected Conditions

At 10:41 PM CDT, severe thunderstorms were located along a line from over Sutton Bay Rec Area to near Agar, moving northeast at 15 mph. Hazards include 60 mph wind gusts and quarter size hail (1.00 inch).

Timeline

The warning is in effect until 11:45 PM CDT on August 29. The storm will be near Sutton Bay Rec Area around 10:45 PM CDT, Agar around 10:50 PM CDT, and Cottonwood Lake Near Agar around 11:05 PM CDT.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

What people usually ask about a notice like this one.

What is this NWS weather alert about?
NWS Aberdeen has issued a Severe Thunderstorm Warning for northeastern Sully County and southwestern Potter County in South Dakota until 11:45 PM CDT August 29.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Central South Dakota. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.