This alert expired on 10 August 2026 at 11:21 UTC. It is kept here as a record.
No stronger detection stands among the 109 recorded within 20 km of this point since 16 March 2026 — 18 others scored the same. Another comparable one was recorded here earlier the same day. 18 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 10 at 6:11AM CDT until August 10 at 6:15AM CDT by NWS Kansas City/Pleasant Hill MO
An estimated 1,548,456 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 6, 2026 · score 46 · 7.8 km
- August 10, 2026 · score 52 · 9.2 km
- June 1, 2026 · score 48 · 12.1 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 87 % 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) | 52 / 100 |
| Our confidence | 87% |
| Coordinates | 38.7640, -94.7940 |
| Nearest City | Gardner (13 km) |
| Population Exposed | 1.5M within 50 km |
| Impact Tier | significant |
| Date | 2026-08-10 — time not reported by the source |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Johnson, KS; Miami, KS |
| Headline | Severe Thunderstorm Warning issued August 10 at 6:11AM CDT until August 10 at 6:15AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-08-10T06:21:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 58 |
| Iem Unit | MPH |
| Iem City | 1 WNW Clare |
| Iem County | Johnson |
| Iem State | KS |
| Iem Wfo | EAX |
| MergedSources | [{"id":"iem_G_38.830_-94.890_1786352520000","source":"iem","severity":"low","severityValue":25,"timestamp":1786352520000,"latitude":38.83,"longitude":-94.89}] |
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 52/100, near Gardner (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.