Right now
The most recent data we hold from NOAA arrived 1 minute ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
8 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert expired on 10 September 2026 at 00:45 UTC. It is kept here as a record.
It is the 13th strongest of the 99 detections recorded within 20 km of this point since 15 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 9 at 7:08PM CDT until September 9 at 7:45PM CDT by NWS Kansas City/Pleasant Hill MO
An estimated 19,927 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 10, 2026 · score 34 · 2.2 km
- June 9, 2026 · score 34 · 2.5 km
- June 7, 2026 · score 28 · 6.4 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 28 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 90% |
| Coordinates | 38.3368, -93.6059 |
| Nearest City | Warrensburg (48 km) |
| Population Exposed | 19.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-10T00:08:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.7117605f414ad0624f1a8203c81a0b0a03421199.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Henry, MO; Henry, MO; Johnson, MO; Pettis, MO |
| Headline | Severe Thunderstorm Warning issued September 9 at 7:08PM CDT until September 9 at 7:45PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-09-09T19:45:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7117605f414ad0624f1a8203c81a0b0a03421199.001.1","noaa_urn:oid:2.49.0.1.840.0.035bca00591639b717d242a9bd383d2aec341522.001.1"] |
| Spc ReportType | wind |
| Spc Speed | 59 |
| Spc Location | 1 WNW Holden |
| Spc County | Johnson |
| Spc State | MO |
| Spc Comments | Personal weather station. (EAX) |
| Iem TypeSummary | G |
| Iem Magnitude | 59 |
| Iem Unit | MPH |
| Iem City | 1 WNW Holden |
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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