This alert expired on 9 July 2026 at 23:46 UTC. It is kept here as a record.
It is the 4th strongest of the 29 detections recorded within 20 km of this point since 3 April 2026. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 9 at 6:37PM CDT until July 9 at 6:45PM CDT by NWS Grand Forks ND
Nearby, since 3 April 2026
- June 29, 2026 · score 46 · 7.4 km
- July 9, 2026 · score 22 · 10.2 km
- June 10, 2026 · score 46 · 26.5 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.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 59% |
| Coordinates | 48.2968, -99.0408 |
| Nearest City | Grand Forks (155 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-09T23:37:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.2a59cfffe4a417e42b82ef201e1222d2 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cavalier, ND; Pembina, ND; Benson, ND; Ramsey, ND; Benson, ND and 2 more areas |
| Headline | Severe Thunderstorm Warning issued July 9 at 6:37PM CDT until July 9 at 6:45PM CDT by NWS Grand Forks ND |
| Expires | 2026-07-09T18:46:00-05:00 |
| SenderName | NWS Grand Forks ND |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2a59cfffe4a417e42b82ef201e1222d2db89e89e.001.1","noaa_urn:oid:2.49.0.1.840.0.c6965f1a3af04b4c4505c1050c1a4bb9f49e39a1.001.1","noaa_urn:oid:2.49.0.1.840.0.3d889d77412677d59e1ee4e8fb7c63adcff38695.001.1","noaa_urn:oid:2.49.0.1.840.0.aa2d98f46d7ee6e6dd6369239e6902247f9c5159.001.1","noaa_urn:oid:2.49.0.1.840.0.f6c47e2b10c62e26de087bd299eaeb6a76a56554.001.1"] |
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 8 March 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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.