Right now
The most recent data we hold from NOAA arrived 8 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 21:00 UTC. It is kept here as a record.
It is the 15th strongest of the 52 detections recorded within 20 km of this point since 3 April 2026. The last comparable one was on 27 April 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 3:15PM CDT until June 10 at 4:00PM CDT by NWS Green Bay WI
Urban PEI: 485,841 within a heuristic 50 km radius; not unique people.
Nearby, since 3 April 2026
- June 10, 2026 · score 41 · 0.6 km
- June 11, 2026 · score 41 · 11.2 km
- June 24, 2026 · score 48 · 11.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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) | 37 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 42.3790, -88.8421 |
| Nearest City | Belvidere (13 km) |
| Urban exposure index (PEI) | 485.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-10T20:15:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f21fa27a56ca11ad9c27130c4f4809db |
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: 2026-06-10T20:15:00.000Z.
First archived: 2026-06-10T20:18:32.864Z. 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 | Calumet, WI; Winnebago, WI; Adams, WI; Juneau, WI; Dodge, WI; Fond du Lac, WI; Green Lake, WI; Washington, WI and 10 more areas |
| Headline | Severe Thunderstorm Warning issued June 10 at 3:15PM CDT until June 10 at 4:00PM CDT by NWS Green Bay WI |
| Expires | 2026-06-10T16:00:00-05:00 |
| SenderName | NWS Green Bay WI |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f21fa27a56ca11ad9c27130c4f4809dbed03402c.001.1","noaa_urn:oid:2.49.0.1.840.0.482c69c3b30e14134ee8fff39d0eac0551196ba0.001.1","noaa_urn:oid:2.49.0.1.840.0.8140b8dc02b40079ec39d641586e263f25c1c4b7.002.1","noaa_urn:oid:2.49.0.1.840.0.0ccf073f31cd398ce9cd2d225b306c766059cc0c.001.1","noaa_urn:oid:2.49.0.1.840.0.40199154494afc8292005e2dc1ad2db380b2f28a.001.1","noaa_urn:oid:2.49.0.1.840.0.6ba01552dea7f2ff54c4caff52fdf418916fb073.001.1","noaa_urn:oid:2.49.0.1.840.0.ec3d9cb7c1c16a25ac360cbdc19defb4831fcbcc.001.1","noaa_urn:oid:2.49.0.1.840.0.6c400970f51875132a228da75cf9f3699e5f916f.001.1","noaa_urn:oid:2.49.0.1.840.0.9cece69dabcf1f4c311e6adb416d0e0092432a22.001.1","noaa_urn:oid:2.49.0.1.840.0.53759e144ae9ed7359a6aa5a7d0f27c3868601ea.001.1","noaa_urn:oid:2.49.0.1.840.0.99b8ec0ef6bb411c1ffaad13b3731a2ad7e1b674.001.1","noaa_urn:oid:2.49.0.1.840.0.9cb439d3f8457c37414ebcdd493e11a47995ed4d.001.1","noaa_urn:oid:2.49.0.1.840.0.7a2d5da1db840dba3cecffb99eb187497b6405ad.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.
Review the area, threshold and delivery channel in your account.
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