Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 18 May 2026 at 05:30 UTC. It is kept here as a record.
It is the 16th strongest of the 50 detections recorded within 20 km of this point since 26 April 2026. The last comparable one was on 27 April 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 18 at 12:06AM CDT until May 18 at 12:30AM CDT by NWS Topeka KS
An estimated 72,434 people live within 50 km of this point.
Nearby, since 26 April 2026
- August 13, 2026 · score 34 · 13.7 km
- July 10, 2026 · score 43 · 20.8 km
- June 11, 2026 · score 63 · 23.6 km
How we know
Confirmed by 5 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.
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) | 39 / 100 |
| Our confidence | 90% |
| Coordinates | 39.0043, -97.2671 |
| Nearest City | Salina (35 km) |
| Population Exposed | 72.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T05:06:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.247639f1c8e13e9303ed8f1adfedde71898a7f69.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Dickinson, KS; Ottawa, KS |
| Headline | Severe Thunderstorm Warning issued May 18 at 12:06AM CDT until May 18 at 12:30AM CDT by NWS Topeka KS |
| Expires | 2026-05-18T00:30:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 1 WSW Minneapolis |
| Iem County | Ottawa |
| Iem State | KS |
| Iem Wfo | TOP |
| Iem Remark | 6-8 inches of water flowing over roads that typically flood with heavy rains. |
| MergedSources | [{"id":"iem_H_39.160_-97.670_1779071700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779071700000,"latitude":39.16,"longitude":-97.67},{"id":"iem_G_39.550_-97.650_1779065700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779065700000,"latitude":39.55,"longitude":-97.65},{"id":"iem_G_39.550_-97.650_1779065940000","source":"iem","severity":"low","severityValue":25,"timestamp":1779065940000,"latitude":39.55,"longitude":-97.65},{"id":"iem_F_39.120_-97.720_1779072480000","source":"iem","severity":"low","severityValue":25,"timestamp":1779072480000,"latitude":39.12,"longitude":-97.72}] |
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 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.