Right now
The most recent data we hold from NOAA arrived 15 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 21 July 2026 at 18:45 UTC. It is kept here as a record.
It is the 11th strongest of the 39 detections recorded within 20 km of this point since 23 May 2026. The last comparable one was on 18 July 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 21 at 2:04PM EDT until July 21 at 2:45PM EDT by NWS Indianapolis IN
Urban PEI: 693,832 within a heuristic 50 km radius; not unique people.
Nearby, since 23 May 2026
- July 18, 2026 · score 48 · 6.3 km
- June 18, 2026 · score 72 · 8.7 km
- July 21, 2026 · score 72 · 12.2 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 | 39.0949, -84.1729 |
| Nearest City | Fort Thomas (24 km) |
| Urban exposure index (PEI) | 693.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-21T18:04:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a4178916b7514e01f897ee338900ae61 |
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: 2026-07-21T18:04:00.000Z.
First archived: 2026-07-21T18:07:20.633Z. 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 | Jackson, IN; Jennings, IN; Lawrence, IN; Daviess, IN; Martin, IN; Ripley, IN and 4 more areas |
| Headline | Severe Thunderstorm Warning issued July 21 at 2:04PM EDT until July 21 at 2:45PM EDT by NWS Indianapolis IN |
| Expires | 2026-07-21T14:45:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a4178916b7514e01f897ee338900ae6198d4446c.001.1","noaa_urn:oid:2.49.0.1.840.0.075573596bdefdae476fc2a69dcb855ad54c01f5.001.1","noaa_urn:oid:2.49.0.1.840.0.faaaa34b8d489012ac72b7c4d939102252a85240.001.1","noaa_urn:oid:2.49.0.1.840.0.2e2a2b286c02e40b15d33b7507c35dfd1f3c74cd.001.1","noaa_urn:oid:2.49.0.1.840.0.14704f0ba504fe9cf8694ba05bd4b8c5132ac7d0.002.1","noaa_urn:oid:2.49.0.1.840.0.e6536a62cb35ed2f6567de851e21de0a74948108.001.1","noaa_urn:oid:2.49.0.1.840.0.0d9687ce59f2c714c38bcee9f011258df178a242.001.1"] |
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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