Right now
The most recent data we hold from NOAA arrived 3 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 17 May 2026 at 00:00 UTC. It is kept here as a record.
No stronger detection stands among the 59 recorded within 20 km of this point since 15 March 2026 — 9 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued May 16 at 6:29PM CDT until May 16 at 7:00PM CDT by NWS Des Moines IA
Nearby, since 15 March 2026
- May 16, 2026 · score 46 · 19.3 km
How we know
5 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 46 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) | 46 / 100 |
| Legacy data-support index | 0.69/1 |
| Coordinates | 40.3540, -93.7820 |
| Nearest City | Kirksville (104 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-16T23:29:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.536e0cfb4c81497d9dabe852851a0de0 |
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: 2026-05-16T23:29:00.000Z.
First archived: 2026-05-16T23:35:27.244Z. 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 | Ringgold, IA; Linn, MO; Sullivan, MO |
| Headline | Tornado Warning issued May 16 at 6:29PM CDT until May 16 at 7:00PM CDT by NWS Des Moines IA |
| Expires | 2026-05-16T19:00:00-05:00 |
| SenderName | NWS Des Moines IA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.536e0cfb4c81497d9dabe852851a0de0f39ce4c1.002.1","noaa_urn:oid:2.49.0.1.840.0.bf6ecbd4a30ae1ff3c85e367f8fca5d20a2cf602.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 2 N Bethany |
| Iem County | Harrison |
| Iem State | MO |
| Iem Wfo | EAX |
| MergedSources | [{"id":"iem_H_40.720_-93.040_1778973600000","source":"iem","severity":"low","severityValue":25,"timestamp":1778973600000,"latitude":40.72,"longitude":-93.04},{"id":"iem_H_40.260_-93.960_1778968860000","source":"iem","severity":"low","severityValue":25,"timestamp":1778968860000,"latitude":40.26,"longitude":-93.96},{"id":"iem_H_40.260_-93.930_1778969640000","source":"iem","severity":"low","severityValue":25,"timestamp":1778969640000,"latitude":40.26,"longitude":-93.93},{"id":"iem_H_40.300_-94.030_1778968140000","source":"iem","severity":"low","severityValue":25,"timestamp":1778968140000,"latitude":40.3,"longitude":-94.03}] |
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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