Right now
The most recent data we hold from SPC arrived 6 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
119 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
Reported by SPC today.
No stronger detection stands among the 157 recorded within 20 km of this point since 5 May 2026 — 102 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Hail 150 in near 6 W Alliance, Box Butte, NE. Trained Spotter reported 1.5 inch hail 7 Miles S of Berea and 16 miles SSE of Hemingford. (CYS)
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 28 out of 100, at 49 % 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 | High |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 49% |
| Coordinates | 42.1000, -102.9900 |
| Nearest City | Cheyenne (186 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-06T04:08:09.832Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 150 |
| Location | 6 W Alliance |
| County | Box Butte |
| State | NE |
| Comments | Trained Spotter reported 1.5 inch hail 7 Miles S of Berea and 16 miles SSE of Hemingford. (CYS) |
| Iem TypeSummary | R |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | 7.4 SSW Berea |
| Iem County | Box Butte |
| Iem State | NE |
| Iem Wfo | CYS |
| Iem Remark | Heavy rain reported with personal weather station near Berea. |
| MergedSources | [{"id":"iem_R_42.100_-103.050_1788651900000","source":"iem","severity":"low","severityValue":25,"timestamp":1788651900000,"latitude":42.1,"longitude":-103.05}] |
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 28/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.