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.
This alert expired on 8 June 2026 at 07:15 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 8 at 1:23AM CDT until June 8 at 2:15AM CDT by NWS Bismarck ND
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.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 |
| Legacy data-support index | 0.61/1 |
| Coordinates | 46.0967, -99.8887 |
| Nearest City | Bismarck (105 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-08T06:23:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.7e855882be2204c72e56eed0f943679f |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-08T06:23:00.000Z.
First archived: 2026-06-08T06:24:31.763Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Logan, ND; McIntosh, ND; Campbell, SD; Edmunds, SD; McPherson, SD; Walworth, SD; Corson, SD; Dewey, SD and 2 more areas |
| Headline | Severe Thunderstorm Warning issued June 8 at 1:23AM CDT until June 8 at 2:15AM CDT by NWS Bismarck ND |
| Expires | 2026-06-08T02:15:00-05:00 |
| SenderName | NWS Bismarck ND |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7e855882be2204c72e56eed0f943679f6a2050ba.001.1","noaa_urn:oid:2.49.0.1.840.0.0ef55afe892d675882ac71023c8a7bbe5b708445.001.1","noaa_urn:oid:2.49.0.1.840.0.de43a8a244b0ca10318d5951d84a2ac8c868da8c.001.1","noaa_urn:oid:2.49.0.1.840.0.7e689427fbe4683512e4660dc99e3a8869e90443.002.1","noaa_urn:oid:2.49.0.1.840.0.83b704b0ff8b5653b30a79bccc60a30434cb9033.001.1"] |
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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