This alert expired on 30 August 2026 at 23:15 UTC. It is kept here as a record.
No stronger detection stands among the 26 recorded within 20 km of this point since 15 March 2026 — 10 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 30 at 5:20PM CDT until August 30 at 6:15PM CDT by NWS Bismarck ND
An estimated 23,765 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 8, 2026 · score 34 · 19.2 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 85 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 85% |
| Coordinates | 46.9484, -102.6491 |
| Nearest City | Dickinson (13 km) |
| Population Exposed | 23.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-30T22:20:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | McLean, ND; Mountrail, ND; Ward, ND; Grant, ND; Morton, ND; Stark, ND; Harding, SD; Perkins, SD and 6 more areas |
| Headline | Severe Thunderstorm Warning issued August 30 at 5:20PM CDT until August 30 at 6:15PM CDT by NWS Bismarck ND |
| Expires | 2026-08-30T18:15:00-05:00 |
| SenderName | NWS Bismarck ND |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9dcf8ccc50b900ef2407294742632ae1b9048d1e.001.1","noaa_urn:oid:2.49.0.1.840.0.13f4968eb68f200f1c5924c9223dbc2555235c3c.001.1","noaa_urn:oid:2.49.0.1.840.0.98ac7cefeb2f11231574fcee625f9254d9665454.001.1","noaa_urn:oid:2.49.0.1.840.0.073102ca769519807da797dab470faf4182079f4.001.1","noaa_urn:oid:2.49.0.1.840.0.cdda8755a5d85246bac61c3160d38d99a8ef2ee8.001.1","noaa_urn:oid:2.49.0.1.840.0.2726953b2aa75ca4561902e4a9bec65619dca673.001.1","noaa_urn:oid:2.49.0.1.840.0.61f5e456fa0a4ae845803640be6f098bc56bf784.001.1","noaa_urn:oid:2.49.0.1.840.0.7b6114b7d3f9ce7d7ccd7f65b0fe019c102b1e3c.001.1","noaa_urn:oid:2.49.0.1.840.0.9636c5ed0a462f070ae7565f8c90b11f6ecbdbb4.001.1"] |
| Spc ReportType | wind |
| Spc Speed | 60 |
| Spc Location | 8 NE Oakdale |
| Spc County | Dunn |
| Spc State | ND |
| Spc Comments | NDAWN station Little Missouri. Report at 10 meters... 54 MPH observed at the surface. (BIS) |
| MergedSources | [{"id":"spc_wind_47.56_-102.76_13","source":"spc","severity":"medium","severityValue":45,"timestamp":1788122940000,"latitude":47.56,"longitude":-102.76}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 34/100, near Dickinson (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.