This alert expired on 3 July 2026 at 00:30 UTC. It is kept here as a record.
No stronger detection stands among the 60 recorded within 20 km of this point since 16 March 2026 — 9 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: Severe Thunderstorm Warning issued July 2 at 6:53PM CDT until July 2 at 7:30PM CDT by NWS Milwaukee/Sullivan WI
An estimated 1,105,946 people live within 50 km of this point.
Nearby, since 16 March 2026
- September 3, 2026 · score 46 · 9.1 km
- May 16, 2026 · score 52 · 11.6 km
- July 3, 2026 · score 52 · 15.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 79 % 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 | 79% |
| Coordinates | 43.2647, -88.3022 |
| Nearest City | Germantown (16 km) |
| Population Exposed | 1.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-02T23:53:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f090e68f9eba93e7e8191328937e08bb |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Waukesha, WI; Dodge, WI; Fond du Lac, WI; Washington, WI |
| Headline | Severe Thunderstorm Warning issued July 2 at 6:53PM CDT until July 2 at 7:30PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-07-02T19:30:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f090e68f9eba93e7e8191328937e08bb646ce334.001.1","noaa_urn:oid:2.49.0.1.840.0.abb80b1d4894ca6705a431d3a19c16574847c963.001.1"] |
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 Germantown?
Calamity.live data shows a weather event with CalamityScore 52/100, near Germantown (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.