This alert expired on 30 June 2026 at 02:00 UTC. It is kept here as a record.
No stronger detection stands among the 36 recorded within 20 km of this point since 3 April 2026 — 22 others scored the same. Another comparable one was recorded here earlier the same day. 26 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 29 at 8:43PM CDT until June 29 at 9:00PM CDT by NWS Bismarck ND
An estimated 23,765 people live within 50 km of this point.
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 40 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | high |
| Calamity Score (ours) | 40 / 100 |
| Our confidence | 90% |
| Coordinates | 46.4883, -102.7783 |
| Nearest City | Dickinson (44 km) |
| Population Exposed | 23.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-30T01:43:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Hettinger, ND |
| Headline | Severe Thunderstorm Warning issued June 29 at 8:43PM CDT until June 29 at 9:00PM CDT by NWS Bismarck ND |
| Expires | 2026-06-29T21:00:00-05:00 |
| SenderName | NWS Bismarck ND |
| HasExactCoords | true |
| Spc ReportType | hail |
| Spc Speed | 100 |
| Spc Location | New England |
| Spc County | Hettinger |
| Spc State | ND |
| Spc Comments | CO OP observer reports 1 inch hail in New England. Mixed with lots of small... pea sized hail. (BIS) |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | Hettinger |
| Iem County | Adams |
| Iem State | ND |
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 40/100, near Dickinson (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.