This alert expired on 1 July 2026 at 18:45 UTC. It is kept here as a record.
No stronger detection stands among the 50 recorded within 20 km of this point since 16 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 1 at 1:24PM CDT until July 1 at 1:45PM CDT by NWS Milwaukee/Sullivan WI
An estimated 113,502 people live within 50 km of this point.
Nearby, since 16 March 2026
- September 4, 2026 · score 37 · 1.4 km
- May 17, 2026 · score 43 · 12.2 km
- July 27, 2026 · score 37 · 16.1 km
How we know
Confirmed by 18 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 89 % 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 | 89% |
| Coordinates | 43.7551, -87.7561 |
| Nearest City | Sheboygan (4 km) |
| Population Exposed | 113.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-01T18:24:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.088f73b98875d7eef902ad5fdb94fe8b |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Sheboygan, WI |
| Headline | Severe Thunderstorm Warning issued July 1 at 1:24PM CDT until July 1 at 1:45PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-07-01T13:45:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.088f73b98875d7eef902ad5fdb94fe8b9343eb87.001.1","noaa_urn:oid:2.49.0.1.840.0.76268a2d5ad11aa26988b306ec3ad3c4ed23a80f.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | 4 W Eden |
| Iem County | Fond du Lac |
| Iem State | WI |
| Iem Wfo | MKX |
| Iem Remark | Report from mPING: Half Dollar (1.25 in.). |
| MergedSources | [{"id":"iem_H_43.830_-88.020_1782915300000","source":"iem","severity":"low","severityValue":25,"timestamp":1782915300000,"latitude":43.83,"longitude":-88.02},{"id":"iem_H_43.750_-88.460_1782926640000","source":"iem","severity":"low","severityValue":25,"timestamp":1782926640000,"latitude":43.75,"longitude":-88.46},{"id":"iem_H_43.740_-87.970_1782929100000","source":"iem","severity":"low","severityValue":25,"timestamp":1782929100000,"latitude":43.74,"longitude":-87.97},{"id":"iem_H_43.710_-88.440_1782926580000","source":"iem","severity":"low","severityValue":25,"timestamp":1782926580000,"latitude":43.71,"longitude":-88.44},{"id":"iem_G_43.980_-88.560_1782909840000","source":"iem","severity":"low","severityValue":25,"timestamp":1782909840000,"latitude":43.98,"longitude":-88.56},{"id":"iem_D_44.180_-88.280_1782910380000","source":"iem","severity":"low","severityValue":25,"timestamp":1782910380000,"latitude":44.18,"longitude":-88.28},{"id":"iem_H_43.720_-88.450_1782926880000","source":"iem","severity":"low","severityValue":25,"timestamp":1782926880000,"latitude":43.72,"longitude":-88.45},{"id":"iem_H_43.750_-88.510_1782926580000","source":"iem","severity":"low","severityValue":25,"timestamp":1782926580000,"latitude":43.75,"longitude":-88.51},{"id":"iem_H_43.760_-88.470_1782926400000","source":"iem","severity":"low","severityValue":25,"timestamp":1782926400000,"latitude":43.76,"longitude":-88.47},{"id":"iem_H_43.750_-87.940_1782928800000","source":"iem","severity":"low","severityValue":25,"timestamp":1782928800000,"latitude":43.75,"longitude":-87.94},{"id":"iem_H_43.760_-88.400_1782927480000","source":"iem","severity":"low","severityValue":25,"timestamp":1782927480000,"latitude":43.76,"longitude":-88.4},{"id":"iem_D_44.010_-88.550_1782909900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782909900000,"latitude":44.01,"longitude":-88.55},{"id":"iem_H_43.740_-88.380_1782927000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782927000000,"latitude":43.74,"longitude":-88.38},{"id":"iem_H_43.750_-88.430_1782927000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782927000000,"latitude":43.75,"longitude":-88.43},{"id":"iem_G_43.770_-88.480_1782926280000","source":"iem","severity":"low","severityValue":25,"timestamp":1782926280000,"latitude":43.77,"longitude":-88.48},{"id":"iem_H_43.760_-88.450_1782926760000","source":"iem","severity":"low","severityValue":25,"timestamp":1782926760000,"latitude":43.76,"longitude":-88.45},{"id":"iem_H_43.710_-88.440_1782927000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782927000000,"latitude":43.71,"longitude":-88.44}] |
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.