This alert expired on 30 May 2026 at 05:01 UTC. It is kept here as a record.
It is the 2nd strongest of the 30 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 12 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 29 at 11:51PM CDT until May 30 at 12:00AM CDT by NWS Hastings NE
An estimated 33,021 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 31, 2026 · score 34 · 18.8 km
- June 9, 2026 · score 58 · 19.2 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 84 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 34 / 100 |
| Our confidence | 84% |
| Coordinates | 40.5555, -99.4873 |
| Nearest City | Kearney (38 km) |
| Population Exposed | 33.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-30T04:51:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b0ef63feefc533ec2538b42d3fa06c0c678e08fd.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Dawson, NE; Gosper, NE; Harlan, NE; Phelps, NE |
| Headline | Severe Thunderstorm Warning issued May 29 at 11:51PM CDT until May 30 at 12:00AM CDT by NWS Hastings NE |
| Expires | 2026-05-30T00:01:00-05:00 |
| SenderName | NWS Hastings NE |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 67 |
| Iem Unit | MPH |
| Iem City | 5 NNW Oxford |
| Iem County | Furnas |
| Iem State | NE |
| Iem Wfo | GID |
| Iem Remark | Personal Weather Station reports gust to 67mph. |
| MergedSources | [{"id":"iem_G_40.310_-99.670_1780114500000","source":"iem","severity":"low","severityValue":25,"timestamp":1780114500000,"latitude":40.31,"longitude":-99.67}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.