This alert expired on 11 June 2026 at 20:45 UTC. It is kept here as a record.
It is the 51st strongest of the 113 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 11 at 4:18PM EDT until June 11 at 4:45PM EDT by NWS Charleston WV
An estimated 195,503 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 6, 2026 · score 39 · 7.8 km
- March 12, 2026 · score 49 · 8.8 km
- June 6, 2026 · score 72 · 13.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100, at 80 % 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) | 37 / 100 |
| Our confidence | 80% |
| Coordinates | 40.1571, -79.4956 |
| Nearest City | Murrysville (35 km) |
| Population Exposed | 195.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-11T20:18:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0229c5d9e42cf72cbfae3946416165c8 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Barbour, WV; Harrison, WV; Lewis, WV; Randolph, WV; Upshur, WV; Cambria, PA; Somerset, PA; Armstrong, PA; Clarion, PA; Indiana, PA; Jefferson, PA; Westmoreland, PA and 2 more areas |
| Headline | Severe Thunderstorm Warning issued June 11 at 4:18PM EDT until June 11 at 4:45PM EDT by NWS Charleston WV |
| Expires | 2026-06-11T16:45:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0229c5d9e42cf72cbfae3946416165c804aa81c5.002.1","noaa_urn:oid:2.49.0.1.840.0.702cf158151fd6e76cf7d4ae0cde91e230b77fa3.001.1","noaa_urn:oid:2.49.0.1.840.0.99fdb5adcbc7a94f835028e18f0a67d19898dde5.001.1","noaa_urn:oid:2.49.0.1.840.0.9b34b61fd228b623fbffd9a839aed2a629d6b170.001.1","noaa_urn:oid:2.49.0.1.840.0.bebf31aed5b01d06366512bf371dfee86a620c04.002.1"] |
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 37/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.