Right now
The most recent data we hold from NOAA arrived 2 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 3 June 2026 at 00:30 UTC. It is kept here as a record.
No stronger detection stands among the 84 recorded within 20 km of this point since 15 March 2026 — 13 others scored the same. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 2 at 7:17PM CDT until June 2 at 7:30PM CDT by NWS Aberdeen SD
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 60 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 60% |
| Coordinates | 43.8129, -102.0766 |
| Nearest City | Rapid City (97 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-03T00:17:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.25f3038b8a2473741eca989607743fc6 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Jones, SD; Mellette, SD; Oglala Lakota, SD and 1 more areas |
| Headline | Severe Thunderstorm Warning issued June 2 at 7:17PM CDT until June 2 at 7:30PM CDT by NWS Aberdeen SD |
| Expires | 2026-06-02T19:30:00-05:00 |
| SenderName | NWS Aberdeen SD |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.25f3038b8a2473741eca989607743fc667d000aa.001.1","noaa_urn:oid:2.49.0.1.840.0.b9686cec166b423b76ef5defbffe818310d47c99.001.1","noaa_urn:oid:2.49.0.1.840.0.232b58f16e176b234e0ff65707d7b89f6af125a7.002.1","noaa_urn:oid:2.49.0.1.840.0.90110a338d6b8cb992960e7aa317f2fd9f826809.001.1"] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 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.
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