This alert expired on 30 August 2026 at 22:45 UTC. It is kept here as a record.
No stronger detection stands among the 20 recorded within 20 km of this point since 15 March 2026 — 7 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 4:50PM CDT until August 30 at 5:45PM 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 · 10.6 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 | 47.0209, -102.6910 |
| Nearest City | Dickinson (17 km) |
| Population Exposed | 23.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-30T21:50:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Mountrail, ND; Ward, ND; Burke, ND; Renville, ND; Ward, ND; Dunn, ND; Mercer, ND; Morton, ND; Stark, ND and 4 more areas |
| Headline | Severe Thunderstorm Warning issued August 30 at 4:50PM CDT until August 30 at 5:45PM CDT by NWS Bismarck ND |
| Expires | 2026-08-30T17:45:00-05:00 |
| SenderName | NWS Bismarck ND |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fc4d27c2cb090cf411c71d1e92e8a7ce15650663.001.1","noaa_urn:oid:2.49.0.1.840.0.bded083795c055c4189fe474d578d3477e60c3ff.001.1","noaa_urn:oid:2.49.0.1.840.0.611350b0e03b3a9fcd7081b6b029a08f15ac8553.001.1","noaa_urn:oid:2.49.0.1.840.0.df0da26742629dcab727b684f100da4983f29767.002.1","noaa_urn:oid:2.49.0.1.840.0.5f526babf3d51dee74bd4e348512bc3dd221754f.001.1","noaa_urn:oid:2.49.0.1.840.0.8ccbf8e9c843ff3201553c02651d59b0b636f7dc.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_12","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.