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 1 July 2026 at 13:00 UTC. It is kept here as a record.
It is the 18th strongest of the 70 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 1 at 7:38AM CDT until July 1 at 8:00AM CDT by NWS Milwaukee/Sullivan WI
Urban PEI: 242,845 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- July 1, 2026 · score 43 · 12.6 km
- September 4, 2026 · score 49 · 13.5 km
- July 2, 2026 · score 43 · 13.7 km
How we know
2 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 | 0.86/1 |
| Coordinates | 44.0028, -88.5826 |
| Nearest City | Oshkosh (4 km) |
| Urban exposure index (PEI) | 242.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-01T12:38:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.309df8d690b009ff1415c8e69c523a79 |
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: 2026-07-01T12:38:00.000Z.
First archived: 2026-07-01T12:45:39.774Z. 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; Calumet, WI; Outagamie, WI; Winnebago, WI; Calumet, WI; Winnebago, WI |
| Headline | Severe Thunderstorm Warning issued July 1 at 7:38AM CDT until July 1 at 8:00AM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-07-01T08:00:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.309df8d690b009ff1415c8e69c523a79ff0539b4.002.1","noaa_urn:oid:2.49.0.1.840.0.fcb2469ca833d45022b4add4c6ef17f385c1a514.001.1","noaa_urn:oid:2.49.0.1.840.0.ec666a73996a63f36edd9b5272205f5151aa97fc.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 48 |
| Iem Unit | MPH |
| Iem City | 2 SSW Wautoma |
| Iem County | Waushara |
| Iem State | WI |
| Iem Wfo | GRB |
| MergedSources | [{"id":"iem_G_44.040_-89.310_1782905760000","source":"iem","severity":"low","severityValue":25,"timestamp":1782905760000,"latitude":44.04,"longitude":-89.31}] |
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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