This alert expired on 3 July 2026 at 18:00 UTC. It is kept here as a record.
It is the 3rd strongest of the 34 detections recorded within 20 km of this point since 3 April 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 3 at 12:36PM CDT until July 3 at 1:00PM CDT by NWS Milwaukee/Sullivan WI
An estimated 863,706 people live within 50 km of this point.
Nearby, since 3 April 2026
- August 11, 2026 · score 52 · 10.7 km
- June 11, 2026 · score 41 · 12.4 km
- June 10, 2026 · score 41 · 12.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 79 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 79% |
| Coordinates | 42.3882, -88.4805 |
| Nearest City | Woodstock (9 km) |
| Population Exposed | 863.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T17:36:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.9c68b93548962a4a80968d591c9c0e80 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Walworth, WI; Kenosha, WI; Racine, WI; De Kalb, IL; La Salle, IL; Lee, IL |
| Headline | Severe Thunderstorm Warning issued July 3 at 12:36PM CDT until July 3 at 1:00PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-07-03T13:00:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9c68b93548962a4a80968d591c9c0e80ef116612.001.1","noaa_urn:oid:2.49.0.1.840.0.1f2d6bde9f42fa34512a26e79e1c9136da024a4e.001.1","noaa_urn:oid:2.49.0.1.840.0.43f6c76d8c8e2d0ec8661532d7d996645bfce33f.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 10 February 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 Woodstock?
Calamity.live data shows a weather event with CalamityScore 48/100, near Woodstock (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.