Right now
The most recent data we hold from NOAA arrived 2 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 06:30 UTC. It is kept here as a record.
No stronger detection stands among the 25 recorded within 20 km of this point since 3 April 2026 — 14 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 8 at 12:14AM MDT until June 8 at 12:30AM MDT by NWS Aberdeen SD
Nearby, since 3 April 2026
- June 8, 2026 · score 22 · 15.2 km
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 | 46.1641, -100.0428 |
| Nearest City | Bismarck (91 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-08T06:14:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.de43a8a244b0ca10318d5951d84a2ac8 |
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: 2026-06-08T06:14:00.000Z.
First archived: 2026-06-08T06:19:27.155Z. 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 | Corson, SD; Dewey, SD; Kidder, ND; Logan, ND; Emmons, ND; Logan, ND; McIntosh, ND |
| Headline | Severe Thunderstorm Warning issued June 8 at 12:14AM MDT until June 8 at 12:30AM MDT by NWS Aberdeen SD |
| Expires | 2026-06-08T00:30:00-06:00 |
| SenderName | NWS Aberdeen SD |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["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.
Review the area, threshold and delivery channel in your account.
Want to know when something happens in this area?