Right now
The most recent data we hold from NOAA arrived 5 minutes 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 4 June 2026 at 01:30 UTC. It is kept here as a record.
It is the 9th strongest of the 31 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 3 at 8:06PM CDT until June 3 at 8:30PM CDT by NWS Rapid City SD
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 61 % 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) | 16 / 100 |
| Our confidence | 61% |
| Coordinates | 44.4987, -98.0934 |
| Nearest City | Mitchell (88 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-04T01:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.7ac83f3d47f8f3dea61fd5407e75dc8b |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Tripp, SD; Brule, SD; Brule, SD; Charles Mix, SD; Gregory, SD and 5 more areas |
| Headline | Severe Thunderstorm Warning issued June 3 at 8:06PM CDT until June 3 at 8:30PM CDT by NWS Rapid City SD |
| Expires | 2026-06-03T20:30:00-05:00 |
| SenderName | NWS Rapid City SD |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7ac83f3d47f8f3dea61fd5407e75dc8bb6acfb35.001.1","noaa_urn:oid:2.49.0.1.840.0.b71d7d408f22e7e9ac0c1c5a2110db52434debe6.001.1","noaa_urn:oid:2.49.0.1.840.0.54f7470b0966a4801e9dc74fd5c8f7ff6f22db3f.001.1","noaa_urn:oid:2.49.0.1.840.0.7fe484d78863cb56b8d472615291afad5932900c.001.1","noaa_urn:oid:2.49.0.1.840.0.21f45dc9dbac18e3ac0ae5bf1fe21977882a9a07.001.1","noaa_urn:oid:2.49.0.1.840.0.7beaa72cd2e3961d25fc04ba9ef5e314efeab664.001.1","noaa_urn:oid:2.49.0.1.840.0.b9ee3ffb237907b5e08f820fbc7d7fa9aa553ad3.001.1","noaa_urn:oid:2.49.0.1.840.0.dd09d9d393e5f9c68afc399c39d91724c9d20d69.001.1"] |
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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