This alert expired on 10 July 2026 at 00:15 UTC. It is kept here as a record.
No stronger detection stands among the 14 recorded within 20 km of this point since 8 April 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 9 at 6:57PM CDT until July 9 at 7:15PM CDT by NWS Bismarck ND
Nearby, since 8 April 2026
- June 10, 2026 · score 16 · 11.5 km
- August 30, 2026 · score 22 · 17.2 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, at 59 % 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 | 59% |
| Coordinates | 46.1649, -101.0929 |
| Nearest City | Mandan (76 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-09T23:57:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Emmons, ND; Grant, ND |
| Headline | Severe Thunderstorm Warning issued July 9 at 6:57PM CDT until July 9 at 7:15PM CDT by NWS Bismarck ND |
| Expires | 2026-07-09T19:15:00-05:00 |
| SenderName | NWS Bismarck ND |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6666d6e4847fe10e10f7851902aa91b8e4f84768.002.1","noaa_urn:oid:2.49.0.1.840.0.9b469a125386ee5e33956bf55c65ac5729f605d8.001.1"] |
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 Mandan (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.