Right now
The most recent data we hold from SPC arrived 56 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.
Reported by SPC 104 days ago.
It is the 29th strongest of the 91 detections recorded within 20 km of this point since 23 April 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Wind 64 kt near 8 SE Sidney, Cheyenne, NE. AWOS station K1IW 7 SE Sidney. (CYS)
Nearby, since 23 April 2026
- July 1, 2026 · score 22 · 6.4 km
- August 10, 2026 · score 22 · 6.7 km
- August 10, 2026 · score 22 · 9.7 km
How we know
Confirmed by 3 independent sources, including SPC.
Our own score for this event is 16 out of 100, at 60 % 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) | 16 / 100 |
| Our confidence | 60% |
| Coordinates | 41.0500, -102.8700 |
| Nearest City | Cheyenne (164 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-31T00:18:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 64 |
| Location | 8 SE Sidney |
| County | Cheyenne |
| State | NE |
| Comments | AWOS station K1IW 7 SE Sidney. (CYS) |
| Iem TypeSummary | G |
| Iem Magnitude | 66 |
| Iem Unit | MPH |
| Iem City | 7 ENE Peetz |
| Iem County | Logan |
| Iem State | CO |
| Iem Wfo | BOU |
| Iem Remark | Private Weather Station. |
| MergedSources | [{"id":"iem_G_41.050_-102.870_1780186680000","source":"iem","severity":"low","severityValue":25,"timestamp":1780186680000,"latitude":41.05,"longitude":-102.87},{"id":"iem_G_40.990_-102.980_1780185540000","source":"iem","severity":"low","severityValue":25,"timestamp":1780185540000,"latitude":40.99,"longitude":-102.98}] |
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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