This alert expired on 17 July 2026 at 04:03 UTC. It is kept here as a record.
No stronger detection stands among the 18 recorded within 20 km of this point since 4 April 2026 — 10 others scored the same. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued July 16 at 10:53PM CDT until July 16 at 11:00PM CDT by NWS Bismarck ND
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, at 61 % 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) | 46 / 100 |
| Our confidence | 61% |
| Coordinates | 47.6368, -99.2571 |
| Nearest City | Jamestown (91 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-17T03:53:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.f7402626e43d70f9401a48923786b16d |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Foster, ND; Wells, ND; Eddy, ND |
| Headline | Tornado Warning issued July 16 at 10:53PM CDT until July 16 at 11:00PM CDT by NWS Bismarck ND |
| Expires | 2026-07-16T23:03:00-05:00 |
| SenderName | NWS Bismarck ND |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f7402626e43d70f9401a48923786b16d43c34702.001.1","noaa_urn:oid:2.49.0.1.840.0.32e0f5c351a5fc24fb4563cde85f72856d57bbe6.001.1"] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.