This alert expired on 21 June 2026 at 11:16 UTC. It is kept here as a record.
It is the 5th strongest of the 71 detections recorded within 20 km of this point since 17 April 2026. Another comparable one was recorded here earlier the same day. 14 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 21 at 6:09AM CDT until June 21 at 6:15AM CDT by NWS Wichita KS
Nearby, since 17 April 2026
- May 19, 2026 · score 22 · 7.9 km
- June 24, 2026 · score 22 · 8.2 km
- June 28, 2026 · score 22 · 20.2 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 65 % 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) | 22 / 100 |
| Our confidence | 65% |
| Coordinates | 37.1356, -96.6122 |
| Nearest City | Ponca City (64 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-21T11:09:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.708373ef18edb4251920094e490dae362976a497.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Chautauqua, KS; Cowley, KS |
| Headline | Severe Thunderstorm Warning issued June 21 at 6:09AM CDT until June 21 at 6:15AM CDT by NWS Wichita KS |
| Expires | 2026-06-21T06:16:00-05:00 |
| SenderName | NWS Wichita KS |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 58 |
| Iem Unit | MPH |
| Iem City | 1 SSW Derby |
| Iem County | Sedgwick |
| Iem State | KS |
| Iem Wfo | ICT |
| MergedSources | [{"id":"iem_G_37.540_-97.270_1782022860000","source":"iem","severity":"low","severityValue":25,"timestamp":1782022860000,"latitude":37.54,"longitude":-97.27}] |
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 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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.