Right now
The most recent data we hold from NOAA arrived 10 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 6 August 2026 at 07:15 UTC. It is kept here as a record.
It is the 43rd strongest of the 81 detections recorded within 20 km of this point since 17 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 August 6 at 2:07AM CDT until August 6 at 2:15AM CDT by NWS Kansas City/Pleasant Hill MO
Urban PEI: 41,443 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- July 16, 2026 · score 34 · 9.4 km
- July 16, 2026 · score 34 · 11.4 km
- June 23, 2026 · score 34 · 13.2 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 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) | 28 / 100 |
| Legacy data-support index | 0.91/1 |
| Coordinates | 38.7142, -93.4717 |
| Nearest City | Sedalia (21 km) |
| Urban exposure index (PEI) | 41.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T07:07:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f4abd371aa42ad8a81d0fe098cbcadda |
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: 2026-08-06T07:07:00.000Z.
First archived: 2026-08-06T07:12:51.896Z. 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, MO; Pettis, MO; Pettis, MO |
| Headline | Severe Thunderstorm Warning issued August 6 at 2:07AM CDT until August 6 at 2:15AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-08-06T02:15:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f4abd371aa42ad8a81d0fe098cbcaddab5da29d6.001.1","noaa_urn:oid:2.49.0.1.840.0.f65824cc9ee1f441a22dfe107037bc4716d9f858.001.1"] |
| Iem TypeSummary | D |
| Iem City | Holden |
| Iem County | Johnson |
| Iem State | MO |
| Iem Wfo | EAX |
| Iem Remark | Power outages in Holden, MO. Report relayed from EM. Time estimated from radar. |
| MergedSources | [{"id":"iem_G_38.810_-94.260_1785993600000","source":"iem","severity":"low","severityValue":25,"timestamp":1785993600000,"latitude":38.81,"longitude":-94.26},{"id":"iem_D_38.710_-93.990_1785995280000","source":"iem","severity":"low","severityValue":25,"timestamp":1785995280000,"latitude":38.71,"longitude":-93.99}] |
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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