This alert expired on 9 August 2026 at 05:30 UTC. It is kept here as a record.
It is the 18th strongest of the 71 detections recorded within 20 km of this point since 13 May 2026. The last comparable one was on 8 August 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 9 at 12:51AM EDT until August 9 at 1:30AM EDT by NWS Pittsburgh PA
An estimated 27,648 people live within 50 km of this point.
Nearby, since 13 May 2026
- July 18, 2026 · score 34 · 5.6 km
- July 21, 2026 · score 39 · 7.1 km
- July 18, 2026 · score 34 · 12.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 82 % 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) | 34 / 100 |
| Our confidence | 82% |
| Coordinates | 39.6377, -80.7338 |
| Nearest City | Wheeling (47 km) |
| Population Exposed | 27.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-09T04:51:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Fayette, PA; Greene, PA; Washington, PA; Washington, OH; Wood, WV |
| Headline | Severe Thunderstorm Warning issued August 9 at 12:51AM EDT until August 9 at 1:30AM EDT by NWS Pittsburgh PA |
| Expires | 2026-08-09T01:30:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.aabff1cdfe978da0f17f3fa6a245442743dbb96b.001.1","noaa_urn:oid:2.49.0.1.840.0.ba8b7885eec14297d45e4714be0a7e04a03cc618.001.1"] |
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 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 34/100, near Wheeling (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.