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 5 June 2026 at 01:00 UTC. It is kept here as a record.
No stronger detection stands among the 223 recorded within 20 km of this point since 15 March 2026 — 66 others scored the same. The last comparable one was on 3 June 2026. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 4 at 5:59PM MDT until June 4 at 7:00PM MDT by NWS Rapid City SD
An estimated 73,569 people live within 50 km of this point.
Nearby, since 15 March 2026
- September 7, 2026 · score 32 · 2.7 km
- July 2, 2026 · score 39 · 7.6 km
- June 3, 2026 · score 39 · 11.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 81 % 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) | 39 / 100 |
| Our confidence | 81% |
| Coordinates | 44.1333, -102.9200 |
| Nearest City | Rapid City (25 km) |
| Population Exposed | 73.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-04T23:59:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.646871a1a9397747a5a6f2cba97203271245cad5.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lawrence, SD; Meade, SD; Pennington, SD |
| Headline | Severe Thunderstorm Warning issued June 4 at 5:59PM MDT until June 4 at 7:00PM MDT by NWS Rapid City SD |
| Expires | 2026-06-04T19:00:00-06:00 |
| SenderName | NWS Rapid City SD |
| HasExactCoords | true |
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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