Right now
The most recent data we hold from NOAA arrived 10 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 8 June 2026 at 01:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 21 detections recorded within 20 km of this point since 2 April 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 7 at 6:51PM MDT until June 7 at 7:45PM MDT by NWS Rapid City SD
An estimated 23,765 people live within 50 km of this point.
Nearby, since 2 April 2026
- June 28, 2026 · score 58 · 9.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 80 % 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) | 34 / 100 |
| Our confidence | 80% |
| Coordinates | 46.9734, -103.2974 |
| Nearest City | Dickinson (40 km) |
| Population Exposed | 23.8K within 50 km |
| Impact Tier | significant |
| Date | 2026-06-08 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.2e3a8d6f75613a687e81b5109d1c0b7f |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Harding, SD; Perkins, SD; McKenzie, ND; Billings, ND; Golden Valley, ND; Slope, ND and 5 more areas |
| Headline | Severe Thunderstorm Warning issued June 7 at 6:51PM MDT until June 7 at 7:45PM MDT by NWS Rapid City SD |
| Expires | 2026-06-07T19:45:00-06:00 |
| SenderName | NWS Rapid City SD |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2e3a8d6f75613a687e81b5109d1c0b7f2aa3cabd.001.1","noaa_urn:oid:2.49.0.1.840.0.2def00a7ad1bf56728530ac29c0ba750671e5c38.002.1","noaa_urn:oid:2.49.0.1.840.0.33da38d631893a20236beee65ba3c8881daf6ede.002.1","noaa_urn:oid:2.49.0.1.840.0.51ab467b868f4f634e5bd0e40aa93f4bef8685b0.001.1","noaa_urn:oid:2.49.0.1.840.0.7d8cc9191469add87e8b2564c5be7b38b71e1f8f.001.1","noaa_urn:oid:2.49.0.1.840.0.5470bc91387cd850cc3e05ace9ef55f0f7bc51d7.001.1","noaa_urn:oid:2.49.0.1.840.0.be284fdbfc7a1c2b983fb0312a7bd8b91907b437.001.1","noaa_urn:oid:2.49.0.1.840.0.1bfbc1722c1f39e020a3d7b39832e9e01859ad52.001.1","noaa_urn:oid:2.49.0.1.840.0.68ade7ad91c9566214e98160e47c095bd8030ec4.001.1","noaa_urn:oid:2.49.0.1.840.0.bb8f83b456c491a699dac8248811222f06f8c474.001.1"] |
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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