Right now
The most recent data we hold from NOAA arrived 3 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 2 June 2026 at 21:45 UTC. It is kept here as a record.
No stronger detection stands among the 47 recorded within 20 km of this point since 17 April 2026 — 17 others scored the same. The last comparable one was on 31 May 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 2 at 3:00PM MDT until June 2 at 3:45PM MDT 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 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 | 42.9999, -103.7145 |
| Nearest City | Rapid City (126 km) |
| Impact Tier | minor |
| Date | 2026-06-02 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.03f0381328b316bb306267331a12e356 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Oglala Lakota, SD; Converse, WY; Niobrara, WY; Jackson, SD and 5 more areas |
| Headline | Severe Thunderstorm Warning issued June 2 at 3:00PM MDT until June 2 at 3:45PM MDT by NWS Rapid City SD |
| Expires | 2026-06-02T15:45:00-06:00 |
| SenderName | NWS Rapid City SD |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.03f0381328b316bb306267331a12e3567be7d09b.001.1","noaa_urn:oid:2.49.0.1.840.0.2aaa80be86f58439129faa7ccc00d8514be9112b.001.1","noaa_urn:oid:2.49.0.1.840.0.f312e136a00daf8b1fef9dabec47e0a66ea29fa0.002.1","noaa_urn:oid:2.49.0.1.840.0.359e796f18ed2f4c3bed1b88db2a7649e6051bf7.001.1","noaa_urn:oid:2.49.0.1.840.0.afbbcfabd61274e19a01df8ba7cd986da2eb5aa3.001.1","noaa_urn:oid:2.49.0.1.840.0.4874b7ff3e40b85de012c58413e45b39a7ab615c.001.1","noaa_urn:oid:2.49.0.1.840.0.b128fe7a283755c9e5745b0a2be6a4f3f48dc01d.001.1","noaa_urn:oid:2.49.0.1.840.0.e2a4c88654e52564282755401d3314d2c298e719.001.1"] |
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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