Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 30 June 2026 at 00:45 UTC. It is kept here as a record.
No stronger detection stands among the 19 recorded within 20 km of this point since 15 May 2026 — 3 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: Tornado Warning issued June 29 at 7:34PM CDT until June 29 at 7:45PM CDT by NWS Grand Forks ND
Nearby, since 15 May 2026
- June 30, 2026 · score 46 · 0.0 km
- June 2, 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 46 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 46 / 100 |
| Legacy data-support index | 0.59/1 |
| Coordinates | 48.9600, -98.8550 |
| Nearest City | Brandon (127 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Date | 2026-06-30 — time not reported by the source |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.9545e41544f8765f57ab86f950b4455aa0b9c788.001.1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-30 — time not reported.
First archived: 2026-06-30T00:35:17.784Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cavalier, ND; Towner, ND |
| Headline | Tornado Warning issued June 29 at 7:34PM CDT until June 29 at 7:45PM CDT by NWS Grand Forks ND |
| Expires | 2026-06-29T19:45:00-05:00 |
| SenderName | NWS Grand Forks ND |
| HasExactCoords | true |
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.
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