Right now
The most recent data we hold from NOAA arrived 4 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 27 July 2026 at 20:19 UTC. It is kept here as a record.
It is the 4th strongest of the 33 detections recorded within 20 km of this point since 13 March 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 27 at 4:09PM EDT until July 27 at 4:15PM EDT by NWS Northern Indiana
Urban PEI: 997,897 within a heuristic 50 km radius; not unique people.
Nearby, since 13 March 2026
- August 9, 2026 · score 52 · 9.4 km
- March 13, 2026 · score 52 · 11.2 km
- July 27, 2026 · score 46 · 13.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 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) | 48 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 42.5896, -87.8431 |
| Nearest City | Kenosha (2 km) |
| Urban exposure index (PEI) | 997.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-27T20:09:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.61f2e0e87f3fde7c947eb120a3619231 |
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: 2026-07-27T20:09:00.000Z.
First archived: 2026-07-27T20:14:26.740Z. 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 | Elkhart, IN; Kosciusko, IN; Marshall, IN; Kenosha, WI; Racine, WI and 3 more areas |
| Headline | Severe Thunderstorm Warning issued July 27 at 4:09PM EDT until July 27 at 4:15PM EDT by NWS Northern Indiana |
| Expires | 2026-07-27T16:19:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.61f2e0e87f3fde7c947eb120a3619231cbb2e849.001.1","noaa_urn:oid:2.49.0.1.840.0.a20399577f026b9121adf1cb5313fe602953fbcc.001.1","noaa_urn:oid:2.49.0.1.840.0.879b5985f3dbd0a7258535cdb6788e73c0fc1a35.001.1","noaa_urn:oid:2.49.0.1.840.0.f9a27c1e2a390b777d140f08b4c664ba2146dd0c.001.1","noaa_urn:oid:2.49.0.1.840.0.6f06cced93c3df6548155bb887a3abc2cd62aad4.001.1","noaa_urn:oid:2.49.0.1.840.0.66743113bf1093975e10e8a9040056f4fc44c1aa.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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