This alert expired on 10 June 2026 at 21:31 UTC. It is kept here as a record.
No stronger detection stands among the 35 recorded within 20 km of this point since 15 March 2026 — 3 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 10 at 4:21PM CDT until June 10 at 4:30PM CDT by NWS Green Bay WI
An estimated 54,163 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 10, 2026 · score 63 · 3.3 km
- June 24, 2026 · score 39 · 22.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 63 out of 100, at 80 % 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 | Critical |
| Calamity Score (ours) | 63 / 100 |
| Our confidence | 80% |
| Coordinates | 45.0433, -89.3517 |
| Nearest City | Weston (23 km) |
| Population Exposed | 54.2K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-06-10T21:21:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e4cfe6601dd43df3e952dc6abad9ba485f4cc026.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Marathon, WI |
| Headline | Tornado Warning issued June 10 at 4:21PM CDT until June 10 at 4:30PM CDT by NWS Green Bay WI |
| Expires | 2026-06-10T16:31:00-05:00 |
| SenderName | NWS Green Bay WI |
| HasExactCoords | true |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 near Weston?
Calamity.live data shows a weather event with CalamityScore 63/100, near Weston (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.