This alert expired on 8 July 2026 at 21:04 UTC. It is kept here as a record.
No stronger detection stands among the 60 recorded within 20 km of this point since 15 March 2026 — 9 others scored the same. Another comparable one was recorded here earlier the same day. 21 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 8 at 3:54PM CDT until July 8 at 4:00PM CDT by NWS Green Bay WI
An estimated 366,269 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 10, 2026 · score 37 · 6.0 km
- June 24, 2026 · score 43 · 17.5 km
- July 2, 2026 · score 43 · 22.7 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 81 % 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 | 81% |
| Coordinates | 44.4228, -88.5929 |
| Nearest City | Appleton (23 km) |
| Population Exposed | 366.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-08T20:54:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.564ad5f3fed8ca2b7816cfef7edf4b19 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Outagamie, WI; Waupaca, WI; Winnebago, WI; Outagamie, WI; Shawano, WI |
| Headline | Severe Thunderstorm Warning issued July 8 at 3:54PM CDT until July 8 at 4:00PM CDT by NWS Green Bay WI |
| Expires | 2026-07-08T16:04:00-05:00 |
| SenderName | NWS Green Bay WI |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.564ad5f3fed8ca2b7816cfef7edf4b197669f00a.001.1","noaa_urn:oid:2.49.0.1.840.0.60f527bdd6817bd1bdad9ae809c01f41c621d408.001.1"] |
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 Appleton?
Calamity.live data shows a weather event with CalamityScore 43/100, near Appleton (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.