Reported by IEM 21 days ago.
It is the 3rd strongest of the 105 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 22 more were recorded here in the fortnight before it.
What the source measured
IEM reported: ASOS station KAGC Allegheny County Airport.
An estimated 633,621 people live within 50 km of this point.
Nearby, since 17 March 2026
- August 7, 2026 · score 48 · 1.4 km
- June 26, 2026 · score 48 · 2.9 km
- March 27, 2026 · score 48 · 4.8 km
How we know
Confirmed by 2 independent sources, including IEM.
Our own score for this event is 48 out of 100, at 64 % 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) | 48 / 100 |
| Our confidence | 64% |
| Coordinates | 40.3600, -79.9200 |
| Nearest City | West Mifflin (4 km) |
| Population Exposed | 633.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-10T16:42:00.000Z |
| Source | https://mesonet.agron.iastate.edu/lsr/ |
Score Breakdown
Technical Details
| TypeSummary | G |
| Magnitude | 40 |
| Unit | MPH |
| City | 1 W West Mifflin |
| County | Allegheny |
| State | PA |
| Wfo | PBZ |
| Remark | ASOS station KAGC Allegheny County Airport. |
| Google News RssFeed | weather |
| Google News SourceName | CBS News |
| MergedSources | [{"id":"gnews_weather_496211_299","source":"google_news","severity":"medium","severityValue":40,"timestamp":1786361071000,"latitude":40.44,"longitude":-80}] |
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 48/100, near West Mifflin (United States), based on data from iem. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.