Right now
The most recent data we hold from NOAA arrived 6 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 9 May 2026 at 01:30 UTC. It is kept here as a record.
No stronger detection stands among the 25 recorded within 20 km of this point since 25 April 2026 — 8 others scored the same. The last comparable one was on 26 April 2026. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 8 at 7:52PM CDT until May 8 at 8:30PM CDT by NWS Norman OK
An estimated 119,886 people live within 50 km of this point.
Nearby, since 25 April 2026
- May 10, 2026 · score 43 · 7.8 km
- August 1, 2026 · score 43 · 15.7 km
- May 23, 2026 · score 43 · 22.2 km
How we know
Confirmed by 22 independent sources, including NOAA.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 91% |
| Coordinates | 34.5717, -98.0900 |
| Nearest City | Duncan (14 km) |
| Population Exposed | 119.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-09T00:52:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.bd0ee14a2618e652e6467a29d927457c2fe29113.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Comanche, OK; Cotton, OK; Grady, OK; Stephens, OK |
| Headline | Severe Thunderstorm Warning issued May 8 at 7:52PM CDT until May 8 at 8:30PM CDT by NWS Norman OK |
| Expires | 2026-05-08T20:30:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1.5 |
| Iem Unit | Inch |
| Iem City | 2 NE Elgin |
| Iem County | Comanche |
| Iem State | OK |
| Iem Wfo | OUN |
| MergedSources | [{"id":"iem_H_34.780_-98.280_1778287920000","source":"iem","severity":"low","severityValue":25,"timestamp":1778287920000,"latitude":34.78,"longitude":-98.28},{"id":"iem_H_34.810_-98.290_1778287800000","source":"iem","severity":"low","severityValue":25,"timestamp":1778287800000,"latitude":34.81,"longitude":-98.29},{"id":"iem_H_34.420_-98.650_1778283060000","source":"iem","severity":"low","severityValue":25,"timestamp":1778283060000,"latitude":34.42,"longitude":-98.65},{"id":"iem_H_34.950_-97.950_1778285580000","source":"iem","severity":"low","severityValue":25,"timestamp":1778285580000,"latitude":34.95,"longitude":-97.95},{"id":"iem_H_35.080_-98.030_1778283840000","source":"iem","severity":"low","severityValue":25,"timestamp":1778283840000,"latitude":35.08,"longitude":-98.03},{"id":"iem_H_35.030_-97.960_1778284740000","source":"iem","severity":"low","severityValue":25,"timestamp":1778284740000,"latitude":35.03,"longitude":-97.96},{"id":"iem_H_34.410_-98.660_1778283480000","source":"iem","severity":"low","severityValue":25,"timestamp":1778283480000,"latitude":34.41,"longitude":-98.66},{"id":"iem_H_35.040_-97.940_1778285220000","source":"iem","severity":"low","severityValue":25,"timestamp":1778285220000,"latitude":35.04,"longitude":-97.94},{"id":"iem_H_34.950_-97.950_1778285820000","source":"iem","severity":"low","severityValue":25,"timestamp":1778285820000,"latitude":34.95,"longitude":-97.95},{"id":"iem_H_35.020_-97.940_1778285220000","source":"iem","severity":"low","severityValue":25,"timestamp":1778285220000,"latitude":35.02,"longitude":-97.94},{"id":"iem_H_35.030_-97.960_1778284620000","source":"iem","severity":"low","severityValue":25,"timestamp":1778284620000,"latitude":35.03,"longitude":-97.96},{"id":"iem_H_35.030_-97.980_1778285100000","source":"iem","severity":"low","severityValue":25,"timestamp":1778285100000,"latitude":35.03,"longitude":-97.98},{"id":"iem_H_34.780_-98.240_1778288100000","source":"iem","severity":"low","severityValue":25,"timestamp":1778288100000,"latitude":34.78,"longitude":-98.24},{"id":"iem_H_35.150_-98.030_1778283300000","source":"iem","severity":"low","severityValue":25,"timestamp":1778283300000,"latitude":35.15,"longitude":-98.03},{"id":"iem_H_34.420_-98.650_1778283600000","source":"iem","severity":"low","severityValue":25,"timestamp":1778283600000,"latitude":34.42,"longitude":-98.65},{"id":"iem_H_35.150_-98.030_1778283000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778283000000,"latitude":35.15,"longitude":-98.03},{"id":"iem_H_34.420_-98.650_1778283540000","source":"iem","severity":"low","severityValue":25,"timestamp":1778283540000,"latitude":34.42,"longitude":-98.65},{"id":"iem_H_34.420_-98.650_1778283180000","source":"iem","severity":"low","severityValue":25,"timestamp":1778283180000,"latitude":34.42,"longitude":-98.65},{"id":"iem_H_35.030_-97.940_1778285160000","source":"iem","severity":"low","severityValue":25,"timestamp":1778285160000,"latitude":35.03,"longitude":-97.94},{"id":"iem_H_34.420_-98.650_1778283240000","source":"iem","severity":"low","severityValue":25,"timestamp":1778283240000,"latitude":34.42,"longitude":-98.65},{"id":"iem_H_34.800_-98.270_1778287740000","source":"iem","severity":"low","severityValue":25,"timestamp":1778287740000,"latitude":34.8,"longitude":-98.27}] |
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 near Duncan?
Calamity.live data shows a weather event with CalamityScore 43/100, near Duncan (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.