This alert expired on 29 June 2026 at 13:30 UTC. It is kept here as a record.
It is the strongest of the 140 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 46 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 29 at 8:07AM CDT until June 29 at 8:30AM CDT by NWS Aberdeen SD
An estimated 28,102 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 8, 2026 · score 34 · 4.6 km
- June 30, 2026 · score 40 · 16.5 km
- July 25, 2026 · score 34 · 23.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 58 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | critical |
| Calamity Score (ours) | 58 / 100 |
| Our confidence | 80% |
| Coordinates | 45.4570, -97.8890 |
| Nearest City | Aberdeen (47 km) |
| Population Exposed | 28.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-29T13:07:00.000Z |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Day, SD; Marshall, SD; Brown, SD; Day, SD |
| Headline | Tornado Warning issued June 29 at 8:07AM CDT until June 29 at 8:30AM CDT by NWS Aberdeen SD |
| Expires | 2026-06-29T08:30:00-05:00 |
| SenderName | NWS Aberdeen SD |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7dc62d846420db0d002496d205257a536f94b41e.002.1","noaa_urn:oid:2.49.0.1.840.0.7b287b1c7e47d958199e2d324a8ef00a1a65e708.001.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Calamity.live data shows a weather event with CalamityScore 58/100, near Aberdeen (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.