This alert expired on 21 July 2026 at 01:45 UTC. It is kept here as a record.
No stronger detection stands among the 70 recorded within 20 km of this point since 15 March 2026 — 3 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: Tornado Warning issued July 20 at 8:26PM CDT until July 20 at 8:45PM CDT by NWS Green Bay WI
An estimated 98,664 people live within 50 km of this point.
Nearby, since 15 March 2026
- August 12, 2026 · score 43 · 2.0 km
- August 12, 2026 · score 39 · 15.3 km
- June 30, 2026 · score 43 · 18.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 63 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 | Critical |
| Calamity Score (ours) | 63 / 100 |
| Our confidence | 80% |
| Coordinates | 44.5998, -89.5282 |
| Nearest City | Stevens Point (9 km) |
| Population Exposed | 98.7K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-07-21T01:26:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.87b08a06681463b6d306083fd335f53c |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Marathon, WI; Portage, WI; Shawano, WI; Waupaca, WI; Wood, WI |
| Headline | Tornado Warning issued July 20 at 8:26PM CDT until July 20 at 8:45PM CDT by NWS Green Bay WI |
| Expires | 2026-07-20T20:45:00-05:00 |
| SenderName | NWS Green Bay WI |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.87b08a06681463b6d306083fd335f53ccb78c7c6.001.1","noaa_urn:oid:2.49.0.1.840.0.c9d3d6c327b3391887bc921b848d14984a34f211.002.1","noaa_urn:oid:2.49.0.1.840.0.577dd5e80bdee4f6cdbfb7e2863b46a22d4c781d.001.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 Stevens Point?
Calamity.live data shows a weather event with CalamityScore 63/100, near Stevens Point (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.