This alert expired on 16 May 2026 at 02:15 UTC. It is kept here as a record.
It is the 8th strongest of the 36 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 8 May 2026. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 15 at 8:29PM CDT until May 15 at 9:15PM CDT by NWS Norman OK
An estimated 995,091 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 27, 2026 · score 48 · 6.0 km
- June 11, 2026 · score 46 · 6.2 km
- August 7, 2026 · score 52 · 11.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 80% |
| Coordinates | 35.6400, -97.7700 |
| Nearest City | Yukon (14 km) |
| Population Exposed | 995.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-16T01:29:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.fffeaa18859a2e10388e6a6701407f8f3c8e34c2.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Canadian, OK; Kingfisher, OK; Logan, OK; Oklahoma, OK |
| Headline | Severe Thunderstorm Warning issued May 15 at 8:29PM CDT until May 15 at 9:15PM CDT by NWS Norman OK |
| Expires | 2026-05-15T21:15:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 48/100, near Yukon (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.