Right now
The most recent data we hold from NOAA arrived 3 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 60 recorded within 20 km of this point since 22 March 2026 — 11 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 5:58PM MDT until June 2 at 6:30PM 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 | 43.8735, -102.5563 |
| Nearest City | Rapid City (59 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-02T23:58:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.90110a338d6b8cb992960e7aa317f2fd |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Crook, WY; Oglala Lakota, SD; Pennington, SD; Fall River, SD; Oglala Lakota, SD and 3 more areas |
| Headline | Severe Thunderstorm Warning issued June 2 at 5:58PM MDT until June 2 at 6:30PM MDT by NWS Rapid City SD |
| Expires | 2026-06-02T18:30:00-06:00 |
| SenderName | NWS Rapid City SD |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.90110a338d6b8cb992960e7aa317f2fd9f826809.001.1","noaa_urn:oid:2.49.0.1.840.0.14dba110eaeeb51dbf61754bb8bd4437b136c4c7.001.1","noaa_urn:oid:2.49.0.1.840.0.710d5fd3dad79495d3a1b918342bb4327a181a7b.001.1","noaa_urn:oid:2.49.0.1.840.0.69cd6924a8afb25db6f583067cb21738ffb33e63.001.1","noaa_urn:oid:2.49.0.1.840.0.5571912af8d45c9821ed4bc3af9fdddaff87299a.001.1","noaa_urn:oid:2.49.0.1.840.0.302c4d4bd80ba02f4d1b3014eab84e0775d364c0.001.1"] |
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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