This alert expired on 13 August 2026 at 09:30 UTC. It is kept here as a record.
No stronger detection stands among the 28 recorded within 20 km of this point since 15 March 2026 — 5 others scored the same. The last comparable one was on 8 July 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 13 at 3:43AM CDT until August 13 at 4:30AM CDT by NWS Omaha/Valley NE
An estimated 512,525 people live within 50 km of this point.
Nearby, since 15 March 2026
- September 3, 2026 · score 41 · 17.8 km
- May 16, 2026 · score 48 · 19.9 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 91 % 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) | 48 / 100 |
| Our confidence | 91% |
| Coordinates | 41.6220, -96.2315 |
| Nearest City | Fremont (31 km) |
| Population Exposed | 512.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-13T08:43:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.55dfae822bbc9c28c13765a7cec5348ec276b67b.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Burt, NE; Cuming, NE; Dodge, NE; Washington, NE |
| Headline | Severe Thunderstorm Warning issued August 13 at 3:43AM CDT until August 13 at 4:30AM CDT by NWS Omaha/Valley NE |
| Expires | 2026-08-13T04:30:00-05:00 |
| SenderName | NWS Omaha/Valley NE |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 63 |
| Iem Unit | MPH |
| Iem City | Howells |
| Iem County | Colfax |
| Iem State | NE |
| Iem Wfo | OAX |
| MergedSources | [{"id":"iem_G_41.740_-96.770_1786609800000","source":"iem","severity":"low","severityValue":25,"timestamp":1786609800000,"latitude":41.74,"longitude":-96.77},{"id":"iem_G_41.720_-97.000_1786608900000","source":"iem","severity":"low","severityValue":25,"timestamp":1786608900000,"latitude":41.72,"longitude":-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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 48/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.