This alert expired on 31 May 2026 at 02:30 UTC. It is kept here as a record.
It is the 10th strongest of the 50 detections recorded within 20 km of this point since 16 May 2026. The last comparable one was on 17 May 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 30 at 8:43PM CDT until May 30 at 9:30PM CDT by NWS North Platte NE
An estimated 33,021 people live within 50 km of this point.
Nearby, since 16 May 2026
- August 30, 2026 · score 34 · 16.8 km
- June 20, 2026 · score 39 · 18.7 km
- June 20, 2026 · score 43 · 22.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 80 % 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) | 34 / 100 |
| Our confidence | 80% |
| Coordinates | 40.9769, -98.9367 |
| Nearest City | Kearney (33 km) |
| Population Exposed | 33.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-31T01:43:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Custer, NE; Adams, NE; Clay, NE; Hall, NE; Hamilton, NE; Kearney, NE |
| Headline | Severe Thunderstorm Warning issued May 30 at 8:43PM CDT until May 30 at 9:30PM CDT by NWS North Platte NE |
| Expires | 2026-05-30T21:30:00-05:00 |
| SenderName | NWS North Platte NE |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6ac4a203422779478e5b076f332877cd133c3a59.001.1","noaa_urn:oid:2.49.0.1.840.0.adf021789caab3f7a5ad09006d8868671f440e23.001.1"] |
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 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.
Calamity.live data shows a weather event with CalamityScore 34/100, near Kearney (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.