This alert expired on 8 August 2026 at 23:15 UTC. It is kept here as a record.
No stronger detection stands among the 14 recorded within 20 km of this point since 27 April 2026 — 5 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 8 at 5:55PM CDT until August 8 at 6:15PM CDT by NWS Norman OK
An estimated 127,941 people live within 50 km of this point.
Nearby, since 27 April 2026
- May 26, 2026 · score 43 · 7.1 km
- May 21, 2026 · score 43 · 9.5 km
- July 5, 2026 · score 43 · 16.4 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 86 % 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) | 43 / 100 |
| Our confidence | 86% |
| Coordinates | 34.1471, -98.0300 |
| Nearest City | Duncan (40 km) |
| Population Exposed | 127.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-08T22:55:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a6dbb125272d75ab012f7f4484bb4e1805f36103.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Jefferson, OK; Clay, TX |
| Headline | Severe Thunderstorm Warning issued August 8 at 5:55PM CDT until August 8 at 6:15PM CDT by NWS Norman OK |
| Expires | 2026-08-08T18:15:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | Waurika |
| Iem County | Jefferson |
| Iem State | OK |
| Iem Wfo | OUN |
| MergedSources | [{"id":"iem_H_34.170_-98.000_1786229580000","source":"iem","severity":"low","severityValue":25,"timestamp":1786229580000,"latitude":34.17,"longitude":-98}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.