Right now
The most recent data we hold from NOAA arrived 2 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 30 June 2026 at 23:30 UTC. It is kept here as a record.
No stronger detection stands among the 27 recorded within 20 km of this point since 15 March 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 30 at 5:55PM CDT until June 30 at 6:30PM CDT by NWS Green Bay WI
How we know
4 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.69/1 |
| Coordinates | 45.3014, -87.8375 |
| Nearest City | Howard (87 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-30T22:55:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d3b68db5aaedf8033ba22e17e8a00e8c |
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: 2026-06-30T22:55:00.000Z.
First archived: 2026-06-30T22:58:16.236Z. 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 | Oconto, WI; Shawano, WI; Menominee, MI |
| Headline | Severe Thunderstorm Warning issued June 30 at 5:55PM CDT until June 30 at 6:30PM CDT by NWS Green Bay WI |
| Expires | 2026-06-30T18:30:00-05:00 |
| SenderName | NWS Green Bay WI |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d3b68db5aaedf8033ba22e17e8a00e8c58ea62cf.001.1","noaa_urn:oid:2.49.0.1.840.0.30269eaee8b2130365e14c0fc01ada1f98d3f1e7.002.1"] |
| Iem TypeSummary | I |
| Iem Magnitude | 103 |
| Iem Unit | F |
| Iem City | 1 WNW La Branche |
| Iem County | Menominee |
| Iem State | MI |
| Iem Wfo | MQT |
| Iem Remark | Mesonet station LBRM4 La Branche RAWS. |
| MergedSources | [{"id":"iem_I_45.820_-88.120_1782845640000","source":"iem","severity":"low","severityValue":25,"timestamp":1782845640000,"latitude":45.82,"longitude":-88.12},{"id":"iem_I_45.120_-87.620_1782849420000","source":"iem","severity":"low","severityValue":25,"timestamp":1782849420000,"latitude":45.12,"longitude":-87.62},{"id":"iem_I_45.880_-87.490_1782850320000","source":"iem","severity":"low","severityValue":25,"timestamp":1782850320000,"latitude":45.88,"longitude":-87.49}] |
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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