Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
5 other detections within 20 km in the last 24 hours, the nearest 3 km from here.
This alert expired on 9 September 2026 at 22:00 UTC. It is kept here as a record.
It is the 22nd strongest of the 76 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 7 August 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 9 at 4:25PM CDT until September 9 at 5:00PM CDT by NWS Wichita KS
An estimated 419,628 people live within 50 km of this point.
Nearby, since 15 March 2026
- September 9, 2026 · score 37 · 2.7 km
- June 4, 2026 · score 43 · 8.4 km
- June 19, 2026 · score 43 · 9.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100, at 79 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Our confidence | 79% |
| Coordinates | 37.2680, -97.3700 |
| Nearest City | Derby (33 km) |
| Population Exposed | 419.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-09T21:25:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.c14ae87fefb0a877fadc03dfa254bdf19df2ca54.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Sumner, KS |
| Headline | Severe Thunderstorm Warning issued September 9 at 4:25PM CDT until September 9 at 5:00PM CDT by NWS Wichita KS |
| Expires | 2026-09-09T17:00:00-05:00 |
| SenderName | NWS Wichita KS |
| 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 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.
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