Right now
The most recent data we hold from NOAA arrived 13 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 19 May 2026 at 01:30 UTC. It is kept here as a record.
No stronger detection stands among the 38 recorded within 20 km of this point since 15 March 2026 — 3 others scored the same. The last comparable one was on 27 April 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued May 18 at 8:08PM CDT until May 18 at 8:30PM CDT by NWS Topeka KS
Urban PEI: 125,963 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- May 19, 2026 · score 67 · 6.5 km
- July 9, 2026 · score 43 · 10.0 km
- May 19, 2026 · score 67 · 16.5 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 67 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 | Critical |
| Calamity Score (ours) | 67 / 100 |
| Legacy data-support index | 0.85/1 |
| Coordinates | 38.7900, -95.8600 |
| Nearest City | Topeka (33 km) |
| Urban exposure index (PEI) | 126.0K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-05-19T01:08:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.76e640f63cefba37b64c745005234f2fc55d3fc5.001.1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-05-19T01:08:00.000Z.
First archived: 2026-05-19T01:15:58.781Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Osage, KS; Shawnee, KS; Wabaunsee, KS |
| Headline | Tornado Warning issued May 18 at 8:08PM CDT until May 18 at 8:30PM CDT by NWS Topeka KS |
| Expires | 2026-05-18T20:30:00-05:00 |
| SenderName | NWS Topeka KS |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 80 |
| Iem Unit | MPH |
| Iem City | 1 E Council Grove |
| Iem County | Morris |
| Iem State | KS |
| Iem Wfo | TOP |
| MergedSources | [{"id":"iem_G_38.670_-96.470_1779151860000","source":"iem","severity":"low","severityValue":25,"timestamp":1779151860000,"latitude":38.67,"longitude":-96.47}] |
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 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.
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