This alert expired on 16 June 2026 at 18:30 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 15 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 16 at 12:52PM CDT until June 16 at 1:30PM CDT by NWS Green Bay WI
An estimated 109,919 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 24, 2026 · score 67 · 19.1 km
- June 11, 2026 · score 16 · 19.9 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.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 44.0206, -88.9808 |
| Nearest City | Oshkosh (35 km) |
| Population Exposed | 109.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-16T17:52:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.e44d6f1e437f6bcab9c73ed0e49f4206 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Outagamie, WI; Waupaca, WI; Green Lake, WI |
| Headline | Severe Thunderstorm Warning issued June 16 at 12:52PM CDT until June 16 at 1:30PM CDT by NWS Green Bay WI |
| Expires | 2026-06-16T13:30:00-05:00 |
| SenderName | NWS Green Bay WI |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e44d6f1e437f6bcab9c73ed0e49f420621696581.001.1","noaa_urn:oid:2.49.0.1.840.0.ff0f9ee226505bcafdad0a0fa6072af2eb228430.002.1"] |
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 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.