Right now
The most recent data we hold from NOAA arrived 2 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
This alert expired on 31 July 2026 at 08:15 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 31 at 2:41AM CDT until July 31 at 3:15AM CDT by NWS Kansas City/Pleasant Hill MO
Urban PEI: 170,071 within a heuristic 50 km radius; not unique people.
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 37 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) | 37 / 100 |
| Legacy data-support index | 0.92/1 |
| Coordinates | 39.5679, -94.7610 |
| Nearest City | Saint Joseph (24 km) |
| Urban exposure index (PEI) | 170.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-31T07:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.46784ba4544ab8324ec77a81b0897a3f |
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: 2026-07-31T07:41:00.000Z.
First archived: 2026-07-31T07:49:13.331Z. 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 | Buchanan, MO; Caldwell, MO; Clay, MO; Clinton, MO; DeKalb, MO; Platte, MO; Ray, MO; Buchanan, MO; Platte, MO |
| Headline | Severe Thunderstorm Warning issued July 31 at 2:41AM CDT until July 31 at 3:15AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-07-31T03:15:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.46784ba4544ab8324ec77a81b0897a3f75456bf1.002.1","noaa_urn:oid:2.49.0.1.840.0.a5aca2189a69a516a9ee2f91dd91a99dfaade147.002.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 66 |
| Iem Unit | MPH |
| Iem City | 1 ESE Saint Joseph Airp |
| Iem County | Buchanan |
| Iem State | MO |
| Iem Wfo | EAX |
| MergedSources | [{"id":"iem_G_39.860_-95.520_1785479820000","source":"iem","severity":"low","severityValue":25,"timestamp":1785479820000,"latitude":39.86,"longitude":-95.52},{"id":"iem_G_39.760_-94.910_1785482640000","source":"iem","severity":"low","severityValue":25,"timestamp":1785482640000,"latitude":39.76,"longitude":-94.91}] |
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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