This alert expired on 30 May 2026 at 05:00 UTC. It is kept here as a record.
No stronger detection stands among the 36 recorded within 20 km of this point since 15 April 2026 — 14 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 29 at 11:24PM CDT until May 30 at 12:00AM CDT by NWS Tulsa OK
An estimated 36,595 people live within 50 km of this point.
Nearby, since 15 April 2026
- June 27, 2026 · score 34 · 5.9 km
- June 29, 2026 · score 34 · 16.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 79 % 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) | 34 / 100 |
| Our confidence | 79% |
| Coordinates | 36.8670, -95.9620 |
| Nearest City | Bartlesville (13 km) |
| Population Exposed | 36.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-30T04:24:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.af45c77f83b15449daa3172b41aca36c |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Nowata, OK; Washington, OK; Osage, OK |
| Headline | Severe Thunderstorm Warning issued May 29 at 11:24PM CDT until May 30 at 12:00AM CDT by NWS Tulsa OK |
| Expires | 2026-05-30T00:00:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.af45c77f83b15449daa3172b41aca36c40258c88.001.1","noaa_urn:oid:2.49.0.1.840.0.bb4e44048150e46a9525f8e143cb28fbf6221374.001.1"] |
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 34/100, near Bartlesville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.