Right now
The most recent data we hold from NOAA arrived 25 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 4 July 2026 at 21:00 UTC. It is kept here as a record.
No stronger detection stands among the 10 recorded within 20 km of this point since 27 April 2026 — 2 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 4 at 3:01PM CDT until July 4 at 4:00PM CDT by NWS St Louis MO
Urban PEI: 62,614 within a heuristic 50 km radius; not unique people.
Nearby, since 27 April 2026
- September 6, 2026 · score 28 · 6.0 km
- July 4, 2026 · score 39 · 7.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.77/1 |
| Coordinates | 38.3686, -91.7992 |
| Nearest City | Jefferson City (40 km) |
| Urban exposure index (PEI) | 62.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T20:01:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.8d8cfa25dbc544c61e637d6710f8bbf7 |
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: 2026-07-04T20:01:00.000Z.
First archived: 2026-07-04T20:09:58.787Z. 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 | Crawford, MO; Franklin, MO; Gasconade, MO; Warren, MO; Washington, MO; Callaway, MO; Cole, MO; Osage, MO; Maries, MO; Miller, MO; Phelps, MO; Pulaski, MO |
| Headline | Severe Thunderstorm Warning issued July 4 at 3:01PM CDT until July 4 at 4:00PM CDT by NWS St Louis MO |
| Expires | 2026-07-04T16:00:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8d8cfa25dbc544c61e637d6710f8bbf77c3d5b1e.001.1","noaa_urn:oid:2.49.0.1.840.0.2fe117d2970dbe06bd85f81aca4efd916f4d90d6.002.1","noaa_urn:oid:2.49.0.1.840.0.ab1b9dd339ab31c13121d01467acd90be9669d38.001.1"] |
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.
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