This alert expired on 10 June 2026 at 21:00 UTC. It is kept here as a record.
It is the 18th strongest of the 51 detections recorded within 20 km of this point since 31 March 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 3:53PM CDT until June 10 at 4:00PM CDT by NWS Green Bay WI
An estimated 719,830 people live within 50 km of this point.
Nearby, since 31 March 2026
- July 27, 2026 · score 72 · 7.7 km
- April 18, 2026 · score 52 · 10.2 km
- August 10, 2026 · score 43 · 14.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 41 out of 100, at 80 % 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) | 41 / 100 |
| Our confidence | 80% |
| Coordinates | 42.6988, -88.3907 |
| Nearest City | Muskego (31 km) |
| Population Exposed | 719.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-10T20:53:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.3a0b67adfec85c8ee8a33edbdc4171f0 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Calumet, WI; Winnebago, WI; Marathon, WI; Portage, WI; Outagamie, WI and 8 more areas |
| Headline | Severe Thunderstorm Warning issued June 10 at 3:53PM CDT until June 10 at 4:00PM CDT by NWS Green Bay WI |
| Expires | 2026-06-10T16:00:00-05:00 |
| SenderName | NWS Green Bay WI |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3a0b67adfec85c8ee8a33edbdc4171f0265fe8bc.001.1","noaa_urn:oid:2.49.0.1.840.0.18191f6663a43c82f2369bef5f6a5df5cc7e8cfb.002.1","noaa_urn:oid:2.49.0.1.840.0.7973bf1e19bda5913538cb668019c2b219d4edd4.001.1","noaa_urn:oid:2.49.0.1.840.0.0901ef17537f8e28c5acb1bde78003c4f3da2c1c.002.1","noaa_urn:oid:2.49.0.1.840.0.64226806fcd8f713b368d07bebfa9803aeda130e.002.1","noaa_urn:oid:2.49.0.1.840.0.ecf84a60287f8296355e6227376ee56e5cad4094.001.1","noaa_urn:oid:2.49.0.1.840.0.f39683506f93f09528420bfa4e41825c11cfb096.001.1","noaa_urn:oid:2.49.0.1.840.0.7b43366cfa16161f8fb8cb377cf8a27440ed3b97.001.1","noaa_urn:oid:2.49.0.1.840.0.3c91bde099a40801c9e36c62d55a03c6f729a860.001.1","noaa_urn:oid:2.49.0.1.840.0.fbbf9bf297590eaa0e8e65aabbb6088efe802fb2.002.1","noaa_urn:oid:2.49.0.1.840.0.10b072e4c6195b345aa1f2a3de981c99adcb41e9.001.1"] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 41/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.