This alert expired on 24 June 2026 at 21:30 UTC. It is kept here as a record.
No stronger detection stands among the 29 recorded within 20 km of this point since 14 April 2026 — 4 others scored the same. The last comparable one was on 10 June 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 24 at 3:41PM CDT until June 24 at 4:30PM CDT by NWS Green Bay WI
An estimated 327,280 people live within 50 km of this point.
Nearby, since 14 April 2026
- May 28, 2026 · score 43 · 12.9 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 78 % 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 | 78% |
| Coordinates | 43.2740, -89.8909 |
| Nearest City | Middleton (37 km) |
| Population Exposed | 327.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-24T20:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.b95d3bfe0d97ec4a2f28875bdb241982 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Portage, WI; Wood, WI; Crawford, WI; Vernon, WI; Rock, WI and 1 more areas |
| Headline | Severe Thunderstorm Warning issued June 24 at 3:41PM CDT until June 24 at 4:30PM CDT by NWS Green Bay WI |
| Expires | 2026-06-24T16:30:00-05:00 |
| SenderName | NWS Green Bay WI |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b95d3bfe0d97ec4a2f28875bdb241982586054f1.001.1","noaa_urn:oid:2.49.0.1.840.0.a3b84690259d3ddfe4d05409a2110505abfe6484.001.1","noaa_urn:oid:2.49.0.1.840.0.53c38b9904d851f7a806f8edf8b56650269f05fc.002.1","noaa_urn:oid:2.49.0.1.840.0.5e908761def1053ccdaecd9f2cada2307703bdee.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 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.