Right now
The most recent data we hold from NOAA arrived 5 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 11:00 UTC. It is kept here as a record.
No stronger detection stands among the 53 recorded within 20 km of this point since 15 March 2026 — 12 others scored the same. The last comparable one was on 17 April 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 5:42AM CDT until June 10 at 6:00AM CDT by NWS Twin Cities/Chanhassen MN
Urban PEI: 84,083 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- June 19, 2026 · score 39 · 13.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.82/1 |
| Coordinates | 44.7171, -91.3500 |
| Nearest City | Eau Claire (16 km) |
| Urban exposure index (PEI) | 84.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-10T10:42:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.180b18a80005fa6533b0b694775d5952243c6d73.001.1 |
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: 2026-06-10T10:42:00.000Z.
First archived: 2026-06-10T10:46:47.132Z. 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 | Eau Claire, WI |
| Headline | Severe Thunderstorm Warning issued June 10 at 5:42AM CDT until June 10 at 6:00AM CDT by NWS Twin Cities/Chanhassen MN |
| Expires | 2026-06-10T06:00:00-05:00 |
| SenderName | NWS Twin Cities/Chanhassen MN |
| HasExactCoords | true |
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.
Review the area, threshold and delivery channel in your account.
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