This alert expired on 16 June 2026 at 19:45 UTC. It is kept here as a record.
No stronger detection stands among the 43 recorded within 20 km of this point since 15 March 2026 — 11 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: Severe Thunderstorm Warning issued June 16 at 2:24PM CDT until June 16 at 2:45PM CDT by NWS Milwaukee/Sullivan WI
An estimated 348,041 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 1, 2026 · score 43 · 12.9 km
- June 16, 2026 · score 43 · 15.0 km
- July 27, 2026 · score 43 · 18.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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 | Medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 44.2026, -87.9156 |
| Nearest City | Manitowoc (24 km) |
| Population Exposed | 348.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-16T19:24:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.5e222e369c52aa8829da1b27e266e853 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Sheboygan, WI; Brown, WI; Brown, WI; Kewaunee, WI |
| Headline | Severe Thunderstorm Warning issued June 16 at 2:24PM CDT until June 16 at 2:45PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-06-16T14:45:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5e222e369c52aa8829da1b27e266e853e9ec6a2c.002.1","noaa_urn:oid:2.49.0.1.840.0.aa8abaf30d6ce77b1845cfa581a728a0d86109e5.002.1","noaa_urn:oid:2.49.0.1.840.0.adae66f44b359417071223b4884a2af47f7d4398.001.1"] |
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 Manitowoc?
Calamity.live data shows a weather event with CalamityScore 43/100, near Manitowoc (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.