Right now
The most recent data we hold from NOAA arrived 11 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 13 August 2026 at 01:00 UTC. It is kept here as a record.
No stronger detection stands among the 43 recorded within 20 km of this point since 9 June 2026 — 20 others scored the same. Another comparable one was recorded here earlier the same day. 18 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 12 at 6:39PM MDT until August 12 at 7:00PM MDT by NWS North Platte NE
Nearby, since 9 June 2026
- June 9, 2026 · score 16 · 4.8 km
- July 9, 2026 · score 22 · 5.3 km
- July 6, 2026 · score 22 · 19.2 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 68 % 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 | 68% |
| Coordinates | 42.6200, -102.2460 |
| Nearest City | Rapid City (181 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-13T00:39:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.fd8579216805e6e7bb8e062ea8904a87023488d5.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cherry, NE; Sheridan, NE |
| Headline | Severe Thunderstorm Warning issued August 12 at 6:39PM MDT until August 12 at 7:00PM MDT by NWS North Platte NE |
| Expires | 2026-08-12T19:00:00-06:00 |
| SenderName | NWS North Platte NE |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | Rushville |
| Iem County | Sheridan |
| Iem State | NE |
| Iem Wfo | LBF |
| Iem Remark | mPing report of 3-inch tree limbs broken. |
| MergedSources | [{"id":"iem_H_42.850_-102.740_1786578360000","source":"iem","severity":"low","severityValue":25,"timestamp":1786578360000,"latitude":42.85,"longitude":-102.74},{"id":"iem_D_42.810_-102.900_1786577940000","source":"iem","severity":"low","severityValue":25,"timestamp":1786577940000,"latitude":42.81,"longitude":-102.9},{"id":"iem_G_42.690_-102.440_1786580340000","source":"iem","severity":"low","severityValue":25,"timestamp":1786580340000,"latitude":42.69,"longitude":-102.44},{"id":"iem_G_42.690_-102.440_1786580160000","source":"iem","severity":"low","severityValue":25,"timestamp":1786580160000,"latitude":42.69,"longitude":-102.44},{"id":"iem_D_42.720_-102.470_1786580640000","source":"iem","severity":"low","severityValue":25,"timestamp":1786580640000,"latitude":42.72,"longitude":-102.47}] |
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.