Right now
The most recent data we hold from SPC arrived 12 hours 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 yesterday.
It is the 17th strongest of the 98 detections recorded within 20 km of this point since 2 April 2026. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind 68 kt near 8.7 WSW Guernsey, Platte, WY. Personal weather station gusted 68mph near Guernsey. (CYS)
Nearby, since 2 April 2026
- September 7, 2026 · score 16 · 0.0 km
- June 24, 2026 · score 22 · 16.2 km
- August 30, 2026 · score 28 · 16.6 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 16 out of 100, at 51 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. 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 | 51% |
| Coordinates | 42.2200, -104.9000 |
| Nearest City | Laramie (116 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-07T03:30:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 68 |
| Location | 8.7 WSW Guernsey |
| County | Platte |
| State | WY |
| Comments | Personal weather station gusted 68mph near Guernsey. (CYS) |
| Iem TypeSummary | H |
| Iem Magnitude | 0.75 |
| Iem Unit | Inch |
| Iem City | 10 WNW Hawk Springs |
| Iem County | Goshen |
| Iem State | WY |
| Iem Wfo | CYS |
| Iem Remark | Trained spotter reported penny sized hail near Hawk Springs. |
| MergedSources | [{"id":"iem_H_41.850_-104.450_1788736140000","source":"iem","severity":"low","severityValue":25,"timestamp":1788736140000,"latitude":41.85,"longitude":-104.45}] |
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 16/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.