This alert expired on 19 July 2026 at 00:30 UTC. It is kept here as a record.
It is the 13th strongest of the 33 detections recorded within 20 km of this point since 14 June 2026. Another comparable one was recorded here earlier the same day. 16 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 18 at 8:20PM EDT until July 18 at 8:30PM EDT by NWS Pittsburgh PA
Nearby, since 14 June 2026
- June 25, 2026 · score 28 · 11.3 km
- July 18, 2026 · score 46 · 12.2 km
- June 14, 2026 · score 46 · 17.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 59 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 59% |
| Coordinates | 40.8780, -78.9660 |
| Nearest City | Johnstown (61 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-19T00:20:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.6ab56bfb533cab8e30b3b04cca617851120d0410.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Indiana, PA; Jefferson, PA |
| Headline | Severe Thunderstorm Warning issued July 18 at 8:20PM EDT until July 18 at 8:30PM EDT by NWS Pittsburgh PA |
| Expires | 2026-07-18T20:30:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.