This alert expired on 9 May 2026 at 01:45 UTC. It is kept here as a record.
No stronger detection stands among the 23 recorded within 20 km of this point since 15 April 2026 — 8 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 8 at 8:17PM CDT until May 8 at 8:45PM CDT by NWS Tulsa OK
An estimated 55,054 people live within 50 km of this point.
Nearby, since 15 April 2026
- June 12, 2026 · score 39 · 10.3 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 91 % 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 | Medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 91% |
| Coordinates | 35.5927, -95.0359 |
| Nearest City | Muskogee (35 km) |
| Population Exposed | 55.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-09T01:17:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a97f6dadfeae48fa53c990d0edbeb06c |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | McIntosh, OK; Muskogee, OK; Adair, OK; Cherokee, OK; Sequoyah, OK; Adair, OK; Cherokee, OK |
| Headline | Severe Thunderstorm Warning issued May 8 at 8:17PM CDT until May 8 at 8:45PM CDT by NWS Tulsa OK |
| Expires | 2026-05-08T20:45:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a97f6dadfeae48fa53c990d0edbeb06c72dc8932.002.1","noaa_urn:oid:2.49.0.1.840.0.f2c7099c00b84dbb88410ee5fbc170eec611846b.001.1","noaa_urn:oid:2.49.0.1.840.0.9b241b3a25a8fc8bb59dd88e77bb83ee5ecca323.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.75 |
| Iem Unit | Inch |
| Iem City | 4 SSE Mazie |
| Iem County | Wagoner |
| Iem State | OK |
| Iem Wfo | TSA |
| Iem Remark | winds gusting 60-70mph as well. |
| MergedSources | [{"id":"iem_H_36.030_-95.370_1778284500000","source":"iem","severity":"low","severityValue":25,"timestamp":1778284500000,"latitude":36.03,"longitude":-95.37},{"id":"iem_H_36.150_-95.440_1778283120000","source":"iem","severity":"low","severityValue":25,"timestamp":1778283120000,"latitude":36.15,"longitude":-95.44},{"id":"iem_H_35.970_-95.390_1778284560000","source":"iem","severity":"low","severityValue":25,"timestamp":1778284560000,"latitude":35.97,"longitude":-95.39},{"id":"iem_H_35.850_-95.320_1778286900000","source":"iem","severity":"low","severityValue":25,"timestamp":1778286900000,"latitude":35.85,"longitude":-95.32},{"id":"iem_H_36.050_-95.340_1778284500000","source":"iem","severity":"low","severityValue":25,"timestamp":1778284500000,"latitude":36.05,"longitude":-95.34}] |
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 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 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.