Right now
The most recent data we hold from NOAA arrived 22 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 6 June 2026 at 22:00 UTC. It is kept here as a record.
No stronger detection stands among the 88 recorded within 20 km of this point since 12 March 2026 — 21 others scored the same. The last comparable one was on 23 May 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 6 at 4:55PM EDT until June 6 at 6:00PM EDT by NWS Wilmington OH
Urban PEI: 1,290,845 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- June 6, 2026 · score 52 · 1.8 km
- September 10, 2026 · score 46 · 5.0 km
- March 27, 2026 · score 52 · 7.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 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) | 52 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 40.1342, -83.1279 |
| Nearest City | Dublin (4 km) |
| Urban exposure index (PEI) | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-06T20:55:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0f71e092cb2669c21bbb76478ed45c5d |
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: 2026-06-06T20:55:00.000Z.
First archived: 2026-06-06T21:03:02.091Z. 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 | Delaware, OH; Franklin, OH; Licking, OH; Madison, OH; Union, OH; Champaign, OH; Madison, OH; Union, OH |
| Headline | Severe Thunderstorm Warning issued June 6 at 4:55PM EDT until June 6 at 6:00PM EDT by NWS Wilmington OH |
| Expires | 2026-06-06T18:00:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0f71e092cb2669c21bbb76478ed45c5df67cd5c9.001.1","noaa_urn:oid:2.49.0.1.840.0.dda76758a6e9b51153176382fcd53bd855f71151.001.1"] |
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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