Right now
The most recent data we hold from NOAA arrived 20 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 1 July 2026 at 17:45 UTC. It is kept here as a record.
It is the 16th strongest of the 74 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 1 at 11:41AM CDT until July 1 at 12:45PM CDT by NWS Milwaukee/Sullivan WI
Urban PEI: 169,416 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- June 6, 2026 · score 37 · 4.6 km
- July 27, 2026 · score 67 · 14.9 km
- September 2, 2026 · score 37 · 17.3 km
How we know
7 recorded sources include NOAA; independence is not established by this count.
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 | 0.91/1 |
| Coordinates | 43.8067, -88.6400 |
| Nearest City | Fond du Lac (16 km) |
| Urban exposure index (PEI) | 169.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-01T16:41:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.df03f5de3391e7da7b4aa5b73590b21bed27ea9e.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: 2026-07-01T16:41:00.000Z.
First archived: 2026-07-01T17:10:36.547Z. 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 | Fond du Lac, WI |
| Headline | Severe Thunderstorm Warning issued July 1 at 11:41AM CDT until July 1 at 12:45PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-07-01T12:45:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 3 NE Lind Center |
| Iem County | Waupaca |
| Iem State | WI |
| Iem Wfo | GRB |
| Iem Remark | One tree down on Galilee Road. |
| MergedSources | [{"id":"iem_H_43.830_-88.020_1782915300000","source":"iem","severity":"low","severityValue":25,"timestamp":1782915300000,"latitude":43.83,"longitude":-88.02},{"id":"iem_G_43.980_-88.560_1782909840000","source":"iem","severity":"low","severityValue":25,"timestamp":1782909840000,"latitude":43.98,"longitude":-88.56},{"id":"iem_D_44.180_-88.280_1782910380000","source":"iem","severity":"low","severityValue":25,"timestamp":1782910380000,"latitude":44.18,"longitude":-88.28},{"id":"iem_D_44.010_-88.550_1782909900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782909900000,"latitude":44.01,"longitude":-88.55},{"id":"iem_D_44.280_-88.420_1782909540000","source":"iem","severity":"low","severityValue":25,"timestamp":1782909540000,"latitude":44.28,"longitude":-88.42},{"id":"iem_D_44.310_-88.990_1782907860000","source":"iem","severity":"low","severityValue":25,"timestamp":1782907860000,"latitude":44.31,"longitude":-88.99}] |
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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