Right now
The most recent data we hold from NOAA arrived 12 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 10 June 2026 at 18:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 16 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 1:31PM CDT until June 10 at 1:45PM CDT by NWS Twin Cities/Chanhassen MN
Nearby, since 16 March 2026
- June 10, 2026 · score 46 · 20.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 22 / 100 |
| Legacy data-support index | 0.61/1 |
| Coordinates | 43.2586, -90.3520 |
| Nearest City | Middleton (71 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-10T18:31:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0da0c3875e50e89639ba8ad5a919b38e |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-10T18:31:00.000Z.
First archived: 2026-06-10T18:33:17.279Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Chippewa, WI; Eau Claire, WI; Jackson, WI; Trempealeau, WI; Grant, WI; Richland, WI and 6 more areas |
| Headline | Severe Thunderstorm Warning issued June 10 at 1:31PM CDT until June 10 at 1:45PM CDT by NWS Twin Cities/Chanhassen MN |
| Expires | 2026-06-10T13:45:00-05:00 |
| SenderName | NWS Twin Cities/Chanhassen MN |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0da0c3875e50e89639ba8ad5a919b38e10d734db.002.1","noaa_urn:oid:2.49.0.1.840.0.7f4b92ee5dc8dcc479070a19c856615895a947a1.001.1","noaa_urn:oid:2.49.0.1.840.0.52b517ee719dcb5a838d4ee7e8fb7ef582ba7c00.001.1","noaa_urn:oid:2.49.0.1.840.0.42a4d36bf69af9bdede0ac1f647230d3d64802a8.001.1","noaa_urn:oid:2.49.0.1.840.0.a70d482365915a5d8525de3d65a7284a5e34fa78.001.1","noaa_urn:oid:2.49.0.1.840.0.e7ed7d113e28dab7c46305944b0d778f08f80bbe.002.1","noaa_urn:oid:2.49.0.1.840.0.e12c7eb71bcd218201bfd82456d06b17909d2314.001.1","noaa_urn:oid:2.49.0.1.840.0.22df6611dd8c78a9fa8ddb162c056a57a80fba64.002.1","noaa_urn:oid:2.49.0.1.840.0.a4654d2cfe962790ea4ed0567feb96536c87e907.001.1","noaa_urn:oid:2.49.0.1.840.0.e14bb6f73aa4a1a6ce3fa9796736ea8d993d0cc1.001.1","noaa_urn:oid:2.49.0.1.840.0.ab0f878818105062a027e53e0d72f68bf0111f22.001.1"] |
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 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.
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