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 16 May 2026 at 10:00 UTC. It is kept here as a record.
It is the 11th strongest of the 139 detections recorded within 20 km of this point since 10 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 Watch issued May 16 at 12:01AM CDT until May 16 at 5:00AM CDT by NWS La Crosse WI
Nearby, since 10 March 2026
- September 2, 2026 · score 16 · 0.0 km
- August 11, 2026 · score 22 · 0.0 km
- August 9, 2026 · score 22 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
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 | 0.60/1 |
| Coordinates | 43.8000, -89.6000 |
| Nearest City | Wisconsin Rapids (67 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-16T05:01:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.1d824db2ede42396e0a66a513d2de0a2 |
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: 2026-05-16T05:01:00.000Z.
First archived: 2026-05-16T06:07:24.068Z. 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 Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Grant, WI; Dane, WI; Green, WI; Iowa, WI; Jefferson, WI; Kenosha, WI; Lafayette, WI; Milwaukee, WI; Racine, WI; Rock, WI; Walworth, WI; Waukesha, WI |
| Headline | Severe Thunderstorm Watch issued May 16 at 12:01AM CDT until May 16 at 5:00AM CDT by NWS La Crosse WI |
| Expires | 2026-05-16T05:00:00-05:00 |
| SenderName | NWS La Crosse WI |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1d824db2ede42396e0a66a513d2de0a211a3e775.003.1","noaa_urn:oid:2.49.0.1.840.0.2cdbc70c0b97a6efaec95946f464cd4040265030.001.1"] |
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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