This alert expired on 17 May 2026 at 08:00 UTC. It is kept here as a record.
It is the 4th strongest of the 55 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 17 at 2:45AM CDT until May 17 at 3:00AM CDT by NWS Kansas City/Pleasant Hill MO
An estimated 76,780 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 4, 2026 · score 39 · 10.7 km
- March 15, 2026 · score 39 · 17.7 km
- June 8, 2026 · score 39 · 20.6 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 90% |
| Coordinates | 39.8687, -94.6875 |
| Nearest City | Saint Joseph (18 km) |
| Population Exposed | 76.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-17T07:45:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.871fba00230d6ca20cc5e3546a8e71c486eb5952.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Andrew, MO; Buchanan, MO; Clinton, MO; DeKalb, MO; Gentry, MO; Nodaway, MO |
| Headline | Severe Thunderstorm Warning issued May 17 at 2:45AM CDT until May 17 at 3:00AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-05-17T03:00:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 1 SW Ford City |
| Iem County | Gentry |
| Iem State | MO |
| Iem Wfo | EAX |
| Iem Remark | Several reports of downed wires north of King City. Time estimated from radar. |
| MergedSources | [{"id":"iem_D_39.860_-95.270_1779000540000","source":"iem","severity":"low","severityValue":25,"timestamp":1779000540000,"latitude":39.86,"longitude":-95.27},{"id":"iem_D_40.100_-94.480_1778982360000","source":"iem","severity":"low","severityValue":25,"timestamp":1778982360000,"latitude":40.1,"longitude":-94.48}] |
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 10 February 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.
Want to know when something happens near Saint Joseph?
Calamity.live data shows a weather event with CalamityScore 39/100, near Saint Joseph (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.