This alert expired on 6 June 2026 at 19:00 UTC. It is kept here as a record.
It is the 4th strongest of the 51 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 6 at 2:27PM EDT until June 6 at 3:00PM EDT by NWS Pittsburgh PA
An estimated 181,705 people live within 50 km of this point.
Nearby, since 17 March 2026
- August 11, 2026 · score 43 · 1.8 km
- June 11, 2026 · score 41 · 5.8 km
- June 6, 2026 · score 48 · 6.3 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, at 81 % 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 39.9981, -80.2262 |
| Nearest City | Upper Saint Clair (40 km) |
| Population Exposed | 181.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-06T18:27:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.5a6256b77b5c653a6fc500cfc76bb4847263b0fe.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Monroe, OH; Allegheny, PA; Greene, PA; Washington, PA; Marion, WV; Marshall, WV; Monongalia, WV; Wetzel, WV |
| Headline | Severe Thunderstorm Warning issued June 6 at 2:27PM EDT until June 6 at 3:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-06-06T15:00:00-04:00 |
| 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 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.