Right now
The most recent data we hold from NOAA arrived 40 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
3 other detections within 20 km in the last 24 hours, the nearest 7 km from here.
This alert expired on 15 September 2026 at 23:30 UTC. It is kept here as a record.
It is the 75th strongest of the 262 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 7 September 2026. 67 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 15 at 5:47PM CDT until September 15 at 6:30PM CDT by NWS Kansas City/Pleasant Hill MO
Urban PEI: 1,806,570 within a heuristic 50 km radius; not unique people.
Nearby, since 10 March 2026
- July 10, 2026 · score 52 · 5.2 km
- September 7, 2026 · score 58 · 6.8 km
- September 15, 2026 · score 46 · 7.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 39.0611, -94.7860 |
| Nearest City | Shawnee (6 km) |
| Urban exposure index (PEI) | 1.8M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-15T22:47:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.900486080342d885e1bdb7c244e61cc8917227f8.001.1 |
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: 2026-09-15T22:47:00.000Z.
First archived: 2026-09-15T22:50:58.049Z. 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 | Johnson, KS; Miami, KS; Anderson, KS; Franklin, KS; Doniphan, KS; Andrew, MO; Holt, MO and 1 more areas |
| Headline | Severe Thunderstorm Warning issued September 15 at 5:47PM CDT until September 15 at 6:30PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-09-15T18:30:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.900486080342d885e1bdb7c244e61cc8917227f8.001.1","noaa_urn:oid:2.49.0.1.840.0.778d2671bf0435a18845bf089d159d96eabd2e08.001.1","noaa_urn:oid:2.49.0.1.840.0.6f160444b71b9232893338b115acbdc0701c7f28.001.1","noaa_urn:oid:2.49.0.1.840.0.eb83a4dcbbd6cc0e904d91aff9669cb93bf4b3ec.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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