Right now
The most recent data we hold from NOAA arrived 50 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 14 June 2026 at 22:00 UTC. It is kept here as a record.
It is the 11th strongest of the 97 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 14 at 4:54PM EDT until June 14 at 6:00PM EDT by NWS Pittsburgh PA
Urban PEI: 315,758 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- July 18, 2026 · score 43 · 4.5 km
- September 3, 2026 · score 49 · 9.1 km
- July 21, 2026 · score 43 · 9.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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) | 43 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 40.8519, -80.6370 |
| Nearest City | Boardman (19 km) |
| Urban exposure index (PEI) | 315.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-14T20:54:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d0025de0f52fecbd49d067f76d5b47b2 |
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: 2026-06-14T20:54:00.000Z.
First archived: 2026-06-14T21:00:11.493Z. 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 | Butler, PA; Lawrence, PA; Mercer, PA; Venango, PA; Mahoning, OH; Trumbull, OH; Crawford, PA; Erie, PA and 6 more areas |
| Headline | Severe Thunderstorm Warning issued June 14 at 4:54PM EDT until June 14 at 6:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-06-14T18:00:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d0025de0f52fecbd49d067f76d5b47b2ab705fd5.001.1","noaa_urn:oid:2.49.0.1.840.0.94e01dc0c25965dd438976d137aa4b348ac92298.002.1","noaa_urn:oid:2.49.0.1.840.0.1c24627468c5524b4b5f531e122c7fe76e77f74a.001.1","noaa_urn:oid:2.49.0.1.840.0.87df304cd9b5163fe464507416cdb9b1c35b9e32.001.1","noaa_urn:oid:2.49.0.1.840.0.918d1fb74c73f7b74b09f5c32d4f06071589a41a.002.1","noaa_urn:oid:2.49.0.1.840.0.0e118f651ac7424080d64f059b3d93036fb532ac.001.1","noaa_urn:oid:2.49.0.1.840.0.4aef9a023d79beaede646c885e932b052ac5a309.001.1","noaa_urn:oid:2.49.0.1.840.0.7d68aa1158d0a13386dd35f936a9b5e01a395c76.001.1","noaa_urn:oid:2.49.0.1.840.0.f6854608a6c68e9b93e227a4a20906804edec4d4.001.1"] |
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.
Want to know when something happens near Boardman?