Right now
The most recent data we hold from NOAA arrived 3 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 16 May 2026 at 22:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 41 detections recorded within 20 km of this point since 16 May 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 16 at 5:17PM CDT until May 16 at 5:30PM CDT by NWS Kansas City/Pleasant Hill MO
Nearby, since 16 May 2026
- May 16, 2026 · score 46 · 21.3 km
- May 16, 2026 · score 22 · 22.3 km
How we know
3 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 | 0.68/1 |
| Coordinates | 40.5590, -94.2923 |
| Nearest City | Saint Joseph (100 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Date | 2026-05-16 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.77cd21bdfee45b2274432ea05e343a72 |
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: 2026-05-16 — time not reported.
First archived: 2026-05-16T22:18:04.640Z. 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 | Grundy, MO; Sullivan, MO; Grundy, MO; Mercer, MO; Sullivan, MO; Adams, IA; Taylor, IA and 3 more areas |
| Headline | Severe Thunderstorm Warning issued May 16 at 5:17PM CDT until May 16 at 5:30PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-05-16T17:30:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.77cd21bdfee45b2274432ea05e343a72ad0f373f.001.1","noaa_urn:oid:2.49.0.1.840.0.7a26f81fc08011441f335009249cb35381c91a03.001.1","noaa_urn:oid:2.49.0.1.840.0.98c3a2c6f99f48738b8f764c487215562e093496.001.1","noaa_urn:oid:2.49.0.1.840.0.2a9b053cd00efdc3e6643ea1a9f97b76bf3e8187.001.1","noaa_urn:oid:2.49.0.1.840.0.3045e30374dfa6709393f0973263475517339514.001.1","noaa_urn:oid:2.49.0.1.840.0.c3ef056b78c03c93e3f5db0ae0ad2560f9a1dab6.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 2 N Bethany |
| Iem County | Harrison |
| Iem State | MO |
| Iem Wfo | EAX |
| MergedSources | [{"id":"iem_H_40.130_-93.620_1778967540000","source":"iem","severity":"low","severityValue":25,"timestamp":1778967540000,"latitude":40.13,"longitude":-93.62},{"id":"iem_H_40.300_-94.030_1778968140000","source":"iem","severity":"low","severityValue":25,"timestamp":1778968140000,"latitude":40.3,"longitude":-94.03}] |
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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