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 14 June 2026 at 22:00 UTC. It is kept here as a record.
It is the 6th strongest of the 73 detections recorded within 20 km of this point since 17 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 5:40PM EDT until June 14 at 6:00PM EDT by NWS Pittsburgh PA
Urban PEI: 50,473 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- June 14, 2026 · score 39 · 4.8 km
- June 20, 2026 · score 34 · 15.1 km
- September 3, 2026 · score 40 · 19.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 41.0176, -79.8306 |
| Nearest City | New Castle (44 km) |
| Urban exposure index (PEI) | 50.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-14T21:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.9923831d716642dbd21981db8ee0c8d6 |
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: 2026-06-14T21:40:00.000Z.
First archived: 2026-06-14T21:42:07.784Z. 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; Carroll, OH; Columbiana, OH; Guernsey, OH; Harrison, OH; Muskingum, OH; Tuscarawas, OH; Clarion, PA; Forest, PA; Venango, PA and 2 more areas |
| Headline | Severe Thunderstorm Warning issued June 14 at 5:40PM 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 | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9923831d716642dbd21981db8ee0c8d640ba0989.001.1","noaa_urn:oid:2.49.0.1.840.0.86f7252e01d87c95ddd0a926887613c657c52d5c.001.1","noaa_urn:oid:2.49.0.1.840.0.61b6979cacf55d247c09782807734e2882345aa9.002.1","noaa_urn:oid:2.49.0.1.840.0.3226e35fb6648989d6918484903c0fd7ac813d89.001.1","noaa_urn:oid:2.49.0.1.840.0.5b393102b88c194aa016dbcce97f763b5e563c6a.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.
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