Right now
The most recent data we hold from NOAA arrived 2 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 2 July 2026 at 23:15 UTC. It is kept here as a record.
It is the 4th strongest of the 78 detections recorded within 20 km of this point since 14 April 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 2 at 5:01PM CDT until July 2 at 6:15PM CDT by NWS Milwaukee/Sullivan WI
Urban PEI: 327,280 within a heuristic 50 km radius; not unique people.
Nearby, since 14 April 2026
- July 2, 2026 · score 67 · 6.9 km
- June 18, 2026 · score 43 · 11.2 km
- May 16, 2026 · score 43 · 12.4 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.
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) | 43 / 100 |
| Legacy data-support index | 0.78/1 |
| Coordinates | 43.0371, -89.9513 |
| Nearest City | Middleton (37 km) |
| Urban exposure index (PEI) | 327.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-02T22:01:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0c2a08418734e8eca1b3d70936301f2b |
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: 2026-07-02T22:01:00.000Z.
First archived: 2026-07-02T22:11:46.617Z. 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 | Columbia, WI; Dane, WI; Sauk, WI; Dane, WI; Green, WI; Iowa, WI; Lafayette, WI; Iowa, WI and 2 more areas |
| Headline | Severe Thunderstorm Warning issued July 2 at 5:01PM CDT until July 2 at 6:15PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-07-02T18:15:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0c2a08418734e8eca1b3d70936301f2be61236d5.001.1","noaa_urn:oid:2.49.0.1.840.0.d55453f3636d1bee0c407f9dccd1a9a8f1e75f6e.001.1","noaa_urn:oid:2.49.0.1.840.0.46d7f04e3d06d21d7dc23c9aea3ce3a8fcd644b7.001.1","noaa_urn:oid:2.49.0.1.840.0.bb7c80f9a4f1d06fe237850b427604726179107b.001.1","noaa_urn:oid:2.49.0.1.840.0.47c9b81cea9a252b9ac8f7fc176012cd18f3c4ea.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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