This alert expired on 18 May 2026 at 20:00 UTC. It is kept here as a record.
No stronger detection stands among the 44 recorded within 20 km of this point since 9 April 2026 — 9 others scored the same. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued May 18 at 2:52PM CDT until May 18 at 3:00PM CDT by NWS Topeka KS
Nearby, since 9 April 2026
- July 4, 2026 · score 46 · 17.8 km
- July 4, 2026 · score 46 · 19.2 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 46 out of 100, at 64 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | critical |
| Calamity Score (ours) | 46 / 100 |
| Our confidence | 64% |
| Coordinates | 39.6891, -97.3208 |
| Nearest City | Junction City (85 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-18T19:52:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.fe7c22149cf228bc235a1746b8888dbd |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ottawa, KS; Cloud, KS; Ottawa, KS; Washington, KS and 2 more areas |
| Headline | Tornado Warning issued May 18 at 2:52PM CDT until May 18 at 3:00PM CDT by NWS Topeka KS |
| Expires | 2026-05-18T15:00:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fe7c22149cf228bc235a1746b8888dbddeec8178.001.1","noaa_urn:oid:2.49.0.1.840.0.d1485293159c2d1350fba23b31a485b1388a0860.001.1","noaa_urn:oid:2.49.0.1.840.0.be5d79a3f4fbb9d2a448883261b9fe22dc9ca083.001.1","noaa_urn:oid:2.49.0.1.840.0.e736f3124109146617f92ecd887cae39a7928027.001.1","noaa_urn:oid:2.49.0.1.840.0.4d0b57c261c48d0468144f76c99f2e9099a3f017.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 3 S Jamestown |
| Iem County | Cloud |
| Iem State | KS |
| Iem Wfo | TOP |
| MergedSources | [{"id":"iem_H_39.550_-97.860_1779130260000","source":"iem","severity":"low","severityValue":25,"timestamp":1779130260000,"latitude":39.55,"longitude":-97.86}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.