Right now
The most recent data we hold from NOAA arrived 5 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 26 May 2026 at 04:00 UTC. It is kept here as a record.
It is the 139th strongest of the 149 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 25 at 10:09PM CDT until May 25 at 11:00PM CDT by NWS Omaha/Valley NE
Nearby, since 15 March 2026
- June 30, 2026 · score 40 · 22.2 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 71 % 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) | 22 / 100 |
| Our confidence | 71% |
| Coordinates | 42.1980, -98.1220 |
| Nearest City | Norfolk (61 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-26T03:09:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.9c7d4b32e340e60020bf888e9deef041977cb8de.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Antelope, NE |
| Headline | Severe Thunderstorm Warning issued May 25 at 10:09PM CDT until May 25 at 11:00PM CDT by NWS Omaha/Valley NE |
| Expires | 2026-05-25T23:00:00-05:00 |
| SenderName | NWS Omaha/Valley NE |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | Oakdale |
| Iem County | Antelope |
| Iem State | NE |
| Iem Wfo | OAX |
| MergedSources | [{"id":"iem_G_42.140_-98.020_1779762540000","source":"iem","severity":"low","severityValue":25,"timestamp":1779762540000,"latitude":42.14,"longitude":-98.02},{"id":"iem_H_42.070_-97.970_1779761940000","source":"iem","severity":"low","severityValue":25,"timestamp":1779761940000,"latitude":42.07,"longitude":-97.97}] |
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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