Right now
The most recent data we hold from NOAA arrived 15 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 10 June 2026 at 23:30 UTC. It is kept here as a record.
No stronger detection stands among the 18 recorded within 20 km of this point since 17 May 2026 — one other scored the same. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 10 at 5:40PM CDT until June 10 at 6:30PM CDT by NWS Kansas City/Pleasant Hill MO
Urban PEI: 17,520 within a heuristic 50 km radius; not unique people.
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 58 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) | 58 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 40.2044, -93.1308 |
| Nearest City | Kirksville (47 km) |
| Urban exposure index (PEI) | 17.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-10T22:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.b0f1c2ef705d33a6eed5dab2c02e43db |
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: 2026-06-10T22:40:00.000Z.
First archived: 2026-06-10T22:41:39.800Z. 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 | Linn, MO; Sullivan, MO; Davis, IA; Grundy, MO; Linn, MO; Sullivan, MO and 1 more areas |
| Headline | Tornado Warning issued June 10 at 5:40PM CDT until June 10 at 6:30PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-06-10T18:30:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b0f1c2ef705d33a6eed5dab2c02e43db5bb194d1.001.1","noaa_urn:oid:2.49.0.1.840.0.8213006f17f93182ec8816207b0812a127179942.001.1","noaa_urn:oid:2.49.0.1.840.0.78e309eb58f7509d1c356abfdc5a29759bdd6b19.001.1","noaa_urn:oid:2.49.0.1.840.0.253e31237144f22fb9be6abb9b897526426e3e0c.002.1","noaa_urn:oid:2.49.0.1.840.0.7e9561d481a15ffc8edf2ceae4f59c288f0676d7.001.1"] |
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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