Right now
The most recent data we hold from NOAA arrived 21 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 12 August 2026 at 11:00 UTC. It is kept here as a record.
It is the 4th strongest of the 26 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 August 12 at 5:50AM CDT until August 12 at 6:00AM CDT by NWS Omaha/Valley NE
Nearby, since 15 March 2026
- June 13, 2026 · score 22 · 16.7 km
- June 1, 2026 · score 22 · 21.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 61 % 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 | 61% |
| Coordinates | 41.8375, -96.2265 |
| Nearest City | Fremont (51 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-12T10:50:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.17095f7e6cacd7c24daecfe65d11a95d10f2adef.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Harrison, IA; Burt, NE; Cuming, NE; Dodge, NE; Thurston, NE; Washington, NE |
| Headline | Severe Thunderstorm Warning issued August 12 at 5:50AM CDT until August 12 at 6:00AM CDT by NWS Omaha/Valley NE |
| Expires | 2026-08-12T06:00:00-05:00 |
| SenderName | NWS Omaha/Valley NE |
| HasExactCoords | true |
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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.