This alert expired on 24 June 2026 at 20:00 UTC. It is kept here as a record.
It is the 3rd strongest of the 35 detections recorded within 20 km of this point since 15 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 24 at 2:24PM CDT until June 24 at 3:00PM CDT by NWS La Crosse WI
An estimated 63,121 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 27, 2026 · score 39 · 11.9 km
- August 12, 2026 · score 43 · 19.4 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 84 % 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) | 39 / 100 |
| Our confidence | 84% |
| Coordinates | 44.4742, -90.1616 |
| Nearest City | Marshfield (22 km) |
| Population Exposed | 63.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-24T19:24:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.15c88761e88f24c8bd71b75745bfd7cd |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Houston, MN; La Crosse, WI; Vernon, WI; Dane, WI; Clark, WI and 3 more areas |
| Headline | Severe Thunderstorm Warning issued June 24 at 2:24PM CDT until June 24 at 3:00PM CDT by NWS La Crosse WI |
| Expires | 2026-06-24T15:00:00-05:00 |
| SenderName | NWS La Crosse WI |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.15c88761e88f24c8bd71b75745bfd7cd6af559cd.001.1","noaa_urn:oid:2.49.0.1.840.0.6b5a9eca3537c4b7a6d48b7917074c2b7b4be76d.002.1","noaa_urn:oid:2.49.0.1.840.0.18a54718a8388d1471ec1bb47f66c938f4cd7cda.001.1","noaa_urn:oid:2.49.0.1.840.0.002888045a5a943e2515b80122867b9a208178a7.001.1","noaa_urn:oid:2.49.0.1.840.0.667b93ca8f386fba53a6ee9f6cb7179727bde634.001.1","noaa_urn:oid:2.49.0.1.840.0.09695c140f565973802ea02a7d6c167f77e9f9ec.001.1","noaa_urn:oid:2.49.0.1.840.0.65b2035f9cf894c961b5ce5e5937fc417f7e4b5b.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | Longwood |
| Iem County | Clark |
| Iem State | WI |
| Iem Wfo | ARX |
| MergedSources | [{"id":"iem_H_44.890_-90.600_1782326400000","source":"iem","severity":"low","severityValue":25,"timestamp":1782326400000,"latitude":44.89,"longitude":-90.6}] |
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 Marshfield?
Calamity.live data shows a weather event with CalamityScore 39/100, near Marshfield (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.