This alert expired on 25 June 2026 at 02:15 UTC. It is kept here as a record.
No stronger detection stands among the 64 recorded within 20 km of this point since 13 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 24 at 8:29PM CDT until June 24 at 9:15PM CDT by NWS Milwaukee/Sullivan WI
An estimated 1,058,256 people live within 50 km of this point.
Nearby, since 13 March 2026
- June 25, 2026 · score 52 · 6.6 km
- June 18, 2026 · score 48 · 7.7 km
- March 16, 2026 · score 48 · 7.7 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 84 % 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) | 52 / 100 |
| Our confidence | 84% |
| Coordinates | 43.3427, -87.9391 |
| Nearest City | Mequon (16 km) |
| Population Exposed | 1.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-25T01:29:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.f5c8a1da029e0f377797e7065efc0a3b8eab3ca4.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ozaukee, WI; Washington, WI |
| Headline | Severe Thunderstorm Warning issued June 24 at 8:29PM CDT until June 24 at 9:15PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-06-24T21:15:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| Google News RssFeed | weather |
| Google News SourceName | Milwaukee Journal Sentinel |
| MergedSources | [{"id":"gnews_weather_495094_238","source":"google_news","severity":"medium","severityValue":40,"timestamp":1782339712000,"latitude":43.04,"longitude":-87.91}] |
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 near Mequon?
Calamity.live data shows a weather event with CalamityScore 52/100, near Mequon (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.