This alert expired on 15 May 2026 at 01:18 UTC. It is kept here as a record.
No stronger detection stands among the 36 recorded within 20 km of this point since 26 April 2026 — 5 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 14 at 8:08PM CDT until May 14 at 8:15PM CDT by NWS Topeka KS
An estimated 80,929 people live within 50 km of this point.
Nearby, since 26 April 2026
- June 21, 2026 · score 39 · 16.8 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 90 % 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) | 39 / 100 |
| Our confidence | 90% |
| Coordinates | 39.1999, -97.1064 |
| Nearest City | Junction City (30 km) |
| Population Exposed | 80.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-15T01:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.7f0926190e355ee1737fb35bbc112250 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ottawa, KS; Riley, KS |
| Headline | Severe Thunderstorm Warning issued May 14 at 8:08PM CDT until May 14 at 8:15PM CDT by NWS Topeka KS |
| Expires | 2026-05-14T20:18:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7f0926190e355ee1737fb35bbc112250fb0d1dce.001.1","noaa_urn:oid:2.49.0.1.840.0.f0a4665362c5a50c5b8c72984dfbf0bb3d59f501.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | 1 N Culver |
| Iem County | Ottawa |
| Iem State | KS |
| Iem Wfo | TOP |
| MergedSources | [{"id":"iem_H_39.390_-97.130_1778805000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778805000000,"latitude":39.39,"longitude":-97.13},{"id":"iem_H_38.970_-97.760_1778805900000","source":"iem","severity":"low","severityValue":25,"timestamp":1778805900000,"latitude":38.97,"longitude":-97.76},{"id":"iem_H_39.380_-97.130_1778805000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778805000000,"latitude":39.38,"longitude":-97.13},{"id":"iem_H_39.390_-97.130_1778803500000","source":"iem","severity":"low","severityValue":25,"timestamp":1778803500000,"latitude":39.39,"longitude":-97.13},{"id":"iem_H_38.980_-97.760_1778805840000","source":"iem","severity":"low","severityValue":25,"timestamp":1778805840000,"latitude":38.98,"longitude":-97.76}] |
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 39/100, near Junction City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.