This alert expired on 30 August 2026 at 21:45 UTC. It is kept here as a record.
It is the 5th strongest of the 13 detections recorded within 20 km of this point since 8 April 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 30 at 3:54PM CDT until August 30 at 4:45PM 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 61 % 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) | 22 / 100 |
| Our confidence | 61% |
| Coordinates | 46.4537, -103.3255 |
| Nearest City | Dickinson (63 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-30T20:54:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Dunn, ND; Dunn, ND; Stark, ND; Harding, SD and 1 more areas |
| Headline | Severe Thunderstorm Warning issued August 30 at 3:54PM CDT until August 30 at 4:45PM CDT by NWS Bismarck ND |
| Expires | 2026-08-30T16:45:00-05:00 |
| SenderName | NWS Bismarck ND |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fffe45d10e60057d668020b18234589e73ebda61.001.1","noaa_urn:oid:2.49.0.1.840.0.c8f5e3bda068e3735fe6650333beccf10fd7bf3b.001.1","noaa_urn:oid:2.49.0.1.840.0.df00267db9884354bda8b5054d049fd0e877349b.001.1","noaa_urn:oid:2.49.0.1.840.0.86c556c1927acb68d7f5b63a4d58d035dde1219a.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 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 22/100, near Dickinson (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.