Right now
The most recent data we hold from NOAA arrived 28 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 1 June 2026 at 08:45 UTC. It is kept here as a record.
It is the 6th strongest of the 23 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 June 1 at 3:24AM CDT until June 1 at 3:45AM CDT by NWS Kansas City/Pleasant Hill MO
Nearby, since 15 March 2026
- May 23, 2026 · score 22 · 17.8 km
- June 8, 2026 · score 34 · 22.5 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.65/1 |
| Coordinates | 39.2754, -92.9983 |
| Nearest City | Sedalia (67 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-01T08:24:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.4e7be9f9a7e3518775fba748bafa70c6 |
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: 2026-06-01T08:24:00.000Z.
First archived: 2026-06-01T08:25:50.945Z. 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 | Lafayette, MO; Lafayette, MO; Saline, MO; Audrain, MO; Monroe, MO; Ralls, MO and 4 more areas |
| Headline | Severe Thunderstorm Warning issued June 1 at 3:24AM CDT until June 1 at 3:45AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-06-01T03:45:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4e7be9f9a7e3518775fba748bafa70c624683fc5.001.1","noaa_urn:oid:2.49.0.1.840.0.cd14e3e2791884080b9fa7130abb0e0525d505c2.001.1","noaa_urn:oid:2.49.0.1.840.0.9f318101b27e4985dc576fed0bd90423fb17a209.001.1","noaa_urn:oid:2.49.0.1.840.0.aeb6d181694a08e5c6cc3fbbd8fb912fec639f48.001.1","noaa_urn:oid:2.49.0.1.840.0.2337679243023fa35ed5ca8c2485736e3773c5ec.001.1","noaa_urn:oid:2.49.0.1.840.0.39f89a2aa1d417921896cd9210705d7ace88de53.001.1","noaa_urn:oid:2.49.0.1.840.0.96d58670d3382f69d3ac236c0490992919e4f066.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 58 |
| Iem Unit | MPH |
| Iem City | Fayette |
| Iem County | Howard |
| Iem State | MO |
| Iem Wfo | EAX |
| Iem Remark | Personal weather station measured 58 mph. |
| MergedSources | [{"id":"iem_G_39.150_-92.690_1780299540000","source":"iem","severity":"low","severityValue":25,"timestamp":1780299540000,"latitude":39.15,"longitude":-92.69}] |
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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