Right now
The most recent data we hold from NOAA arrived 16 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 17 May 2026 at 19:15 UTC. It is kept here as a record.
It is the 5th strongest of the 43 detections recorded within 20 km of this point since 31 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 17 at 1:54PM CDT until May 17 at 2:15PM CDT by NWS Milwaukee/Sullivan WI
An estimated 166,550 people live within 50 km of this point.
Nearby, since 31 March 2026
- May 17, 2026 · score 43 · 9.1 km
- July 27, 2026 · score 37 · 9.6 km
- May 17, 2026 · score 43 · 12.9 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 84% |
| Coordinates | 43.6540, -88.0260 |
| Nearest City | Sheboygan (28 km) |
| Population Exposed | 166.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-17T18:54:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d36d597f5ad60d11b78b9076214a03be4cc66bcb.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Sheboygan, WI |
| Headline | Severe Thunderstorm Warning issued May 17 at 1:54PM CDT until May 17 at 2:15PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-05-17T14:15:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| Google News RssFeed | weather |
| Google News SourceName | Milwaukee Journal Sentinel |
| MergedSources | [{"id":"gnews_weather_494176_133","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779036120000,"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 Sheboygan?
Calamity.live data shows a weather event with CalamityScore 43/100, near Sheboygan (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.