This alert expired on 30 June 2026 at 02:15 UTC. It is kept here as a record.
No stronger detection stands among the 82 recorded within 20 km of this point since 15 March 2026 — one other scored the same. Another comparable one was recorded here earlier the same day. 17 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 29 at 8:38PM CDT until June 29 at 9:15PM CDT by NWS Grand Forks ND
An estimated 194,125 people live within 50 km of this point.
Nearby, since 15 March 2026
- September 4, 2026 · score 49 · 5.9 km
- June 19, 2026 · score 43 · 11.3 km
- June 29, 2026 · score 43 · 13.6 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 67 out of 100, at 90 % 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 | Critical |
| Calamity Score (ours) | 67 / 100 |
| Our confidence | 90% |
| Coordinates | 46.9150, -96.4000 |
| Nearest City | Moorhead (29 km) |
| Population Exposed | 194.1K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-06-30T01:38:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.9e2737553721e2835b38997edaddf3c3d370b97d.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Clay, MN |
| Headline | Tornado Warning issued June 29 at 8:38PM CDT until June 29 at 9:15PM CDT by NWS Grand Forks ND |
| Expires | 2026-06-29T21:15:00-05:00 |
| SenderName | NWS Grand Forks ND |
| HasExactCoords | true |
| Spc ReportType | hail |
| Spc Speed | 125 |
| Spc Location | 5 S Dent |
| Spc County | Otter Tail |
| Spc State | MN |
| Spc Comments | Hail at Dead Lake...time estimated from radar. (FGF) |
| MergedSources | [{"id":"spc_wind_46.28_-96.35_16","source":"spc","severity":"medium","severityValue":45,"timestamp":1782783835087,"latitude":46.28,"longitude":-96.35},{"id":"spc_wind_46.80_-96.62_18","source":"spc","severity":"medium","severityValue":45,"timestamp":1782783835087,"latitude":46.8,"longitude":-96.62},{"id":"spc_wind_46.86_-96.56_19","source":"spc","severity":"medium","severityValue":45,"timestamp":1782783835087,"latitude":46.86,"longitude":-96.56},{"id":"spc_hail_46.48_-95.72_83","source":"spc","severity":"high","severityValue":65,"timestamp":1782783835087,"latitude":46.48,"longitude":-95.72}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 near Moorhead?
Calamity.live data shows a weather event with CalamityScore 67/100, near Moorhead (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.