This alert expired on 9 August 2026 at 17:30 UTC. It is kept here as a record.
No stronger detection stands among the 25 recorded within 20 km of this point since 16 March 2026 — 10 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 9 at 11:44AM CDT until August 9 at 12:30PM CDT by NWS Milwaukee/Sullivan WI
An estimated 1,302,540 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 2, 2026 · score 52 · 1.7 km
- May 16, 2026 · score 52 · 6.1 km
- June 10, 2026 · score 52 · 9.3 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 86 % 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 | 86% |
| Coordinates | 43.0088, -87.7050 |
| Nearest City | Cudahy (14 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-09T16:44:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.22cb01417eca711b9076eb17f89d9f97ff362454.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Sheboygan to Port Washington WI; Port Washington to North Point Light WI; North Point Light to Wind Point WI; Wind Point WI to Winthrop Harbor IL; Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake; Lake Michigan from Port Washington to North Point Light WI 5NM offshore to Mid Lake; Lake Michigan from North Point Light to Wind Point WI 5NM offshore to Mid Lake; Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM offshore to Mid Lake |
| Headline | Special Marine Warning issued August 9 at 11:44AM CDT until August 9 at 12:30PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-08-09T12:30:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| Google News RssFeed | weather |
| Google News SourceName | Milwaukee Journal Sentinel |
| MergedSources | [{"id":"gnews_weather_496191_213","source":"google_news","severity":"medium","severityValue":40,"timestamp":1786290348000,"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 Cudahy?
Calamity.live data shows a weather event with CalamityScore 52/100, near Cudahy (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.