Right now
The most recent data we hold from NOAA arrived 1 minute 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 18 June 2026 at 08:45 UTC. It is kept here as a record.
It is the 16th strongest of the 41 detections recorded within 20 km of this point since 16 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 Warning issued June 18 at 4:00AM EDT until June 18 at 4:45AM EDT by NWS Wilmington OH
Urban PEI: 477,615 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- August 15, 2026 · score 43 · 8.1 km
- May 16, 2026 · score 43 · 12.0 km
- September 6, 2026 · score 41 · 19.0 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 | 38.7109, -84.6672 |
| Nearest City | Independence (28 km) |
| Urban exposure index (PEI) | 477.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-18T08:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.4b606a14e1396ddae32c050af29a9fce |
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: 2026-06-18T08:00:00.000Z.
First archived: 2026-06-18T08:02:01.280Z. 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 | Adams, OH; Brown, OH; Clermont, OH; Highland, OH; Clark, IN; Floyd, IN; Henry, KY; Jefferson, KY; Oldham, KY; Shelby, KY; Trimble, KY; Highland, OH; Pike, OH; Ross, OH and 2 more areas |
| Headline | Severe Thunderstorm Warning issued June 18 at 4:00AM EDT until June 18 at 4:45AM EDT by NWS Wilmington OH |
| Expires | 2026-06-18T04:45:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4b606a14e1396ddae32c050af29a9fce7e277b34.001.1","noaa_urn:oid:2.49.0.1.840.0.6fa7cd09526f5d77223cdaef84529cb738d23bb1.002.1","noaa_urn:oid:2.49.0.1.840.0.43c09810bb77d7d1d637de3d70279455f368c511.001.1","noaa_urn:oid:2.49.0.1.840.0.836ff9593024072176eb227784e0317375e041b4.001.1","noaa_urn:oid:2.49.0.1.840.0.fdee7c4b35c2802e6f7aa404defa6caf5cd1edd3.001.1"] |
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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