Right now
The most recent data we hold from NOAA arrived 31 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 04:45 UTC. It is kept here as a record.
It is the 11th strongest of the 37 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 17 at 11:25PM CDT until May 17 at 11:45PM CDT by NWS Kansas City/Pleasant Hill MO
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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 | Medium |
| Calamity Score (ours) | 22 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 40.3614, -94.6814 |
| Nearest City | Saint Joseph (67 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-18T04:25:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8fd820084bb7b2595d4883cedd9045b0a8bbae7c.002.1 |
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: 2026-05-18T04:25:00.000Z.
First archived: 2026-05-18T04:42:54.158Z. 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 | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Andrew, MO; Gentry, MO; Holt, MO; Nodaway, MO; Worth, MO |
| Headline | Severe Thunderstorm Warning issued May 17 at 11:25PM CDT until May 17 at 11:45PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-05-17T23:45:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 58 |
| Iem Unit | MPH |
| Iem City | 3 NNW Maryville |
| Iem County | Nodaway |
| Iem State | MO |
| Iem Wfo | EAX |
| Iem Remark | PWS measured 58 mph wind gust north of Maryville. |
| MergedSources | [{"id":"iem_G_40.550_-95.300_1779075420000","source":"iem","severity":"low","severityValue":25,"timestamp":1779075420000,"latitude":40.55,"longitude":-95.3},{"id":"iem_G_40.390_-94.890_1779077160000","source":"iem","severity":"low","severityValue":25,"timestamp":1779077160000,"latitude":40.39,"longitude":-94.89}] |
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.
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