This alert expired on 10 June 2026 at 21:00 UTC. It is kept here as a record.
It is the 6th strongest of the 34 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 2:56PM CDT until June 10 at 4:00PM CDT by NWS Milwaukee/Sullivan WI
An estimated 460,659 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 10, 2026 · score 43 · 7.6 km
- May 16, 2026 · score 43 · 16.7 km
- May 17, 2026 · score 67 · 19.2 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 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) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 42.8238, -89.2675 |
| Nearest City | Fitchburg (22 km) |
| Population Exposed | 460.7K within 50 km |
| Impact Tier | significant |
| Date | 2026-06-10 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.6ba01552dea7f2ff54c4caff52fdf418 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Dodge, WI; Fond du Lac, WI; Ozaukee, WI; Sheboygan, WI; Washington, WI; Calumet, WI; Winnebago, WI; Jefferson, WI and 15 more areas |
| Headline | Severe Thunderstorm Warning issued June 10 at 2:56PM CDT until June 10 at 4:00PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-06-10T16:00:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| MergedCount | 18 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6ba01552dea7f2ff54c4caff52fdf418916fb073.001.1","noaa_urn:oid:2.49.0.1.840.0.55b37acfd7a4ece53ab6c57bfcaabf707b90a6b2.001.1","noaa_urn:oid:2.49.0.1.840.0.719495088e321a23cf5e22ab562325a297bc7eec.001.1","noaa_urn:oid:2.49.0.1.840.0.a7f528562532dbc10bdb30581c769b8230013440.001.1","noaa_urn:oid:2.49.0.1.840.0.ac87df99546c62ba38e3a8dc093858dbfb2bc2a8.001.1","noaa_urn:oid:2.49.0.1.840.0.ae34aed1c87dfba40232cc6b88d79444b721dfe1.001.1","noaa_urn:oid:2.49.0.1.840.0.7de44826bd35970cdacdc224cfa024d0164d029c.001.1","noaa_urn:oid:2.49.0.1.840.0.a346687902282e44332fdab6e946c408f835e973.002.1","noaa_urn:oid:2.49.0.1.840.0.00b7722d3b8289ce4e3989c3e9d3ea7f101b254b.001.1","noaa_urn:oid:2.49.0.1.840.0.b7161f3c87185073684b1c5f22c2ff8a05231f6f.001.1","noaa_urn:oid:2.49.0.1.840.0.ec3d9cb7c1c16a25ac360cbdc19defb4831fcbcc.001.1","noaa_urn:oid:2.49.0.1.840.0.555e78e82f9f1614b4b1f8bda3451c7930fe99b0.001.1","noaa_urn:oid:2.49.0.1.840.0.0f5ccb91a02882403ffd9790fe81130bbb644d18.001.1","noaa_urn:oid:2.49.0.1.840.0.4e9fb92595c959342f3fb0567bba35c3d933eeae.001.1","noaa_urn:oid:2.49.0.1.840.0.52c5914dc04fdb415adb390c14c49e539a48136e.001.1","noaa_urn:oid:2.49.0.1.840.0.729a0eb68c93b17cb33b2b8ad02393c91fd55f2e.002.1","noaa_urn:oid:2.49.0.1.840.0.668427a8607a2739b9c1208745d5729801cdc34d.001.1","noaa_urn:oid:2.49.0.1.840.0.636282eda2a7180872febe71f7d767d077efb877.002.1"] |
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 near Fitchburg?
Calamity.live data shows a weather event with CalamityScore 43/100, near Fitchburg (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.