This alert expired on 4 July 2026 at 16:16 UTC. It is kept here as a record.
It is the 16th strongest of the 60 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 4 at 11:06AM CDT until July 4 at 11:15AM CDT by NWS Topeka KS
An estimated 24,649 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 14, 2026 · score 28 · 14.9 km
- June 1, 2026 · score 58 · 18.3 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 90 % 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) | 34 / 100 |
| Our confidence | 90% |
| Coordinates | 38.2457, -95.8086 |
| Nearest City | Emporia (37 km) |
| Population Exposed | 24.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T16:06:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.f49d9a4d9554c868d971066fce56272d3db166f9.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Coffey, KS |
| Headline | Severe Thunderstorm Warning issued July 4 at 11:06AM CDT until July 4 at 11:15AM CDT by NWS Topeka KS |
| Expires | 2026-07-04T11:16:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 60 |
| Iem Unit | MPH |
| Iem City | Cottonwood Falls |
| Iem County | Chase |
| Iem State | KS |
| Iem Wfo | ICT |
| Iem Remark | Reports to KVOE radio of 60 mph winds with many branches down in the city. |
| MergedSources | [{"id":"iem_G_38.250_-96.210_1783179000000","source":"iem","severity":"low","severityValue":25,"timestamp":1783179000000,"latitude":38.25,"longitude":-96.21},{"id":"iem_G_38.370_-96.540_1783177680000","source":"iem","severity":"low","severityValue":25,"timestamp":1783177680000,"latitude":38.37,"longitude":-96.54}] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.