Right now
The most recent data we hold from NOAA arrived 20 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 25 July 2026 at 04:00 UTC. It is kept here as a record.
No stronger detection stands among the 191 recorded within 20 km of this point since 15 March 2026 — 21 others scored the same. The last comparable one was on 24 July 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Watch issued July 24 at 7:02PM CDT until July 24 at 11:00PM CDT by NWS Grand Forks ND
Urban PEI: 16,788 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- September 11, 2026 · score 28 · 0.0 km
- September 4, 2026 · score 28 · 0.0 km
- September 3, 2026 · score 28 · 0.0 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 | Medium |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 46.0000, -94.3000 |
| Nearest City | Sartell (43 km) |
| Urban exposure index (PEI) | 16.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-25T00:02:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Watch_noaa_urn:oid:2.49.0.1.840.0.8a04625c9349f0c2cdf0e03885168554 |
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: 2026-07-25T00:02:00.000Z.
First archived: 2026-07-25T00:05:55.041Z. 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 Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Becker, MN; Beltrami, MN; Clay, MN; Clearwater, MN; Hubbard, MN; Kittson, MN; Lake of the Woods, MN; Mahnomen, MN; Marshall, MN; Norman, MN; Pennington, MN; Polk, MN; Red Lake, MN; Roseau, MN; Cass, ND; Grand Forks, ND; Pembina, ND; Steele, ND; Traill, ND; Walsh, ND; Cass, MN; Itasca, MN; Koochiching, MN |
| Headline | Tornado Watch issued July 24 at 7:02PM CDT until July 24 at 11:00PM CDT by NWS Grand Forks ND |
| Expires | 2026-07-24T23:00:00-05:00 |
| SenderName | NWS Grand Forks ND |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8a04625c9349f0c2cdf0e038851685549e658fb2.002.1","noaa_urn:oid:2.49.0.1.840.0.aa566b5fcbc064ff5051f7331603ee13ff1c372f.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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