Right now
The most recent data we hold from NOAA arrived 4 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
4 other detections within 20 km in the last 24 hours, the nearest 5 km from here.
This alert expired on 16 September 2026 at 01:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 30 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 15 at 7:54PM CDT until September 15 at 8:45PM CDT by NWS St Louis MO
Nearby, since 16 March 2026
- September 15, 2026 · score 28 · 5.2 km
- September 15, 2026 · score 28 · 5.7 km
- June 22, 2026 · score 22 · 16.5 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 28 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 28 / 100 |
| Legacy data-support index | 0.71/1 |
| Coordinates | 39.5061, -93.2715 |
| Nearest City | Sedalia (90 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-16T00:54:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.4ca83aee69ad68a969c30b9ff04affb00d1c5986.001.1 |
Physical priority index · v5. 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: 2026-09-16T00:54:00.000Z.
First archived: 2026-09-16T00:57:51.603Z. 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 | Monroe, MO; Monroe, MO; Shelby, MO; Clinton, MO and 2 more areas |
| Headline | Severe Thunderstorm Warning issued September 15 at 7:54PM CDT until September 15 at 8:45PM CDT by NWS St Louis MO |
| Expires | 2026-09-15T20:45:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4ca83aee69ad68a969c30b9ff04affb00d1c5986.001.1","noaa_urn:oid:2.49.0.1.840.0.6f6e08e2f42acbd4102c3cdca0c790e19357adc4.001.1","noaa_urn:oid:2.49.0.1.840.0.7d9e4701ced09c1ffb20f717e93e7a34018c5eda.002.1","noaa_urn:oid:2.49.0.1.840.0.d15e946e6b616d7ad84d662ea663875064bfd6ed.001.1","noaa_urn:oid:2.49.0.1.840.0.bb25a948a6dad7209f89de17b10ec1120d3faf3c.001.1"] |
| Spc ReportType | hail |
| Spc Speed | 100 |
| Spc Location | Richmond |
| Spc County | Ray |
| Spc State | MO |
| Spc Comments | Report via social media. Time estimated from radar. (EAX) |
| Iem TypeSummary | D |
| Iem City | 1 S Richmond |
| Iem County | Ray |
| Iem State | MO |
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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