This alert expired on 15 May 2026 at 00:45 UTC. It is kept here as a record.
No stronger detection stands among the 24 recorded within 20 km of this point since 26 April 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 14 at 7:31PM CDT until May 14 at 7:45PM CDT by NWS Topeka KS
An estimated 47,813 people live within 50 km of this point.
Nearby, since 26 April 2026
- June 13, 2026 · score 34 · 13.5 km
- June 5, 2026 · score 22 · 17.1 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 85 % 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) | 34 / 100 |
| Our confidence | 85% |
| Coordinates | 39.2040, -97.3970 |
| Nearest City | Salina (44 km) |
| Population Exposed | 47.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-15T00:31:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.2587ef610e88187d3648295658578962 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Clay, KS; Ottawa, KS |
| Headline | Severe Thunderstorm Warning issued May 14 at 7:31PM CDT until May 14 at 7:45PM CDT by NWS Topeka KS |
| Expires | 2026-05-14T19:45:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2587ef610e88187d3648295658578962066f0b45.001.1","noaa_urn:oid:2.49.0.1.840.0.5e15441c4308c2308bb36c2399b6b4414bfecda3.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 1 NNW Clay Center |
| Iem County | Clay |
| Iem State | KS |
| Iem Wfo | TOP |
| Iem Remark | Spotter reported a couple of hailstones to quarter-size in the storm. |
| MergedSources | [{"id":"iem_H_39.390_-97.130_1778803500000","source":"iem","severity":"low","severityValue":25,"timestamp":1778803500000,"latitude":39.39,"longitude":-97.13}] |
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 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.