This alert expired on 6 June 2026 at 18:15 UTC. It is kept here as a record.
It is the 4th strongest of the 31 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 6 at 1:50PM EDT until June 6 at 2:15PM EDT by NWS Pittsburgh PA
Nearby, since 17 March 2026
- August 8, 2026 · score 22 · 7.1 km
- June 6, 2026 · score 22 · 11.4 km
- July 3, 2026 · score 22 · 15.0 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 61 % 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 | 61% |
| Coordinates | 41.5306, -79.7645 |
| Nearest City | Hermitage (66 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-06T17:50:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.9b8062d0f9f8a314b4d075af919a201b |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Clarion, PA; Forest, PA; Mercer, PA; Venango, PA; Forest, PA; Venango, PA; Crawford, PA |
| Headline | Severe Thunderstorm Warning issued June 6 at 1:50PM EDT until June 6 at 2:15PM EDT by NWS Pittsburgh PA |
| Expires | 2026-06-06T14:15:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9b8062d0f9f8a314b4d075af919a201b699f889c.001.1","noaa_urn:oid:2.49.0.1.840.0.30551c464202bae94869f1a919737480eeee2883.001.1","noaa_urn:oid:2.49.0.1.840.0.ce3d0692b83e5ea57e402e84b4ebecd4abd973e0.002.1"] |
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 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.