Right now
The most recent data we hold from NOAA arrived 11 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 3 June 2026 at 03:30 UTC. It is kept here as a record.
No stronger detection stands among the 31 recorded within 20 km of this point since 19 March 2026 — 19 others scored the same. The last comparable one was on 31 May 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 2 at 9:30PM CDT until June 2 at 10:30PM 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, 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 | 45.8826, -104.3062 |
| Nearest City | Dickinson (161 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-03T02:30:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.2f4beaae921ad43559ef38a19a1e27d6 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Bowman, ND; Slope, ND; Carter, MT; Carter, MT; Powder River, MT |
| Headline | Severe Thunderstorm Warning issued June 2 at 9:30PM CDT until June 2 at 10:30PM CDT by NWS Bismarck ND |
| Expires | 2026-06-02T22:30:00-05:00 |
| SenderName | NWS Bismarck ND |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2f4beaae921ad43559ef38a19a1e27d680be3989.001.1","noaa_urn:oid:2.49.0.1.840.0.6bad803cdf369cc731608f14b1f0bf68ba9304b6.001.1","noaa_urn:oid:2.49.0.1.840.0.c28735c8486eb8e8c281e141f2021f3a4664bf22.001.1"] |
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.
Want to know when something happens in this area?