Right now
The most recent data we hold from NOAA arrived 3 hours 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 11 June 2026 at 01:30 UTC. It is kept here as a record.
It is the 22nd strongest of the 43 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 4 April 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 7:50PM CDT until June 10 at 8:30PM CDT by NWS La Crosse WI
Nearby, since 16 March 2026
- July 4, 2026 · score 43 · 20.2 km
- July 3, 2026 · score 43 · 21.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 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) | 16 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 43.3926, -91.6452 |
| Nearest City | La Crosse (56 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-11T00:50:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.523b5abe0e0ec74047202cdc42dea167 |
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: 2026-06-11T00:50:00.000Z.
First archived: 2026-06-11T00:52:13.835Z. 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 | Howard, IA; Adams, WI; Juneau, WI; Butler, IA |
| Headline | Severe Thunderstorm Warning issued June 10 at 7:50PM CDT until June 10 at 8:30PM CDT by NWS La Crosse WI |
| Expires | 2026-06-10T20:30:00-05:00 |
| SenderName | NWS La Crosse WI |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.523b5abe0e0ec74047202cdc42dea167635d1e17.001.1","noaa_urn:oid:2.49.0.1.840.0.e557f64017b4dfa86f7a82eb8143b9c024a4668a.001.1","noaa_urn:oid:2.49.0.1.840.0.a94a45281202b1f11181cab074836d04767183ae.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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