This alert expired on 7 August 2026 at 23:45 UTC. It is kept here as a record.
It is the 30th strongest of the 92 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 7 at 7:06PM EDT until August 7 at 7:45PM EDT by NWS Pittsburgh PA
An estimated 633,621 people live within 50 km of this point.
Nearby, since 15 March 2026
- August 7, 2026 · score 48 · 8.2 km
- July 4, 2026 · score 48 · 11.6 km
- August 16, 2026 · score 48 · 15.9 km
How we know
Confirmed by 20 independent sources, including NOAA.
Our own score for this event is 41 out of 100, at 88 % 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) | 41 / 100 |
| Our confidence | 88% |
| Coordinates | 40.5456, -79.8467 |
| Nearest City | Penn Hills (5 km) |
| Population Exposed | 633.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T23:06:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.07007bf70173a2d71b43492e838b169202acc8fd.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Allegheny, PA |
| Headline | Severe Thunderstorm Warning issued August 7 at 7:06PM EDT until August 7 at 7:45PM EDT by NWS Pittsburgh PA |
| Expires | 2026-08-07T19:45:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 1 S Penn Hills |
| Iem County | Allegheny |
| Iem State | PA |
| Iem Wfo | PBZ |
| Iem Remark | Rodi Road flooded. |
| MergedSources | [{"id":"iem_F_40.310_-79.530_1786140000000","source":"iem","severity":"low","severityValue":25,"timestamp":1786140000000,"latitude":40.31,"longitude":-79.53},{"id":"iem_E_40.360_-80.600_1786130160000","source":"iem","severity":"low","severityValue":25,"timestamp":1786130160000,"latitude":40.36,"longitude":-80.6},{"id":"iem_F_40.350_-80.610_1786130700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786130700000,"latitude":40.35,"longitude":-80.61},{"id":"iem_F_40.390_-79.640_1786136460000","source":"iem","severity":"low","severityValue":25,"timestamp":1786136460000,"latitude":40.39,"longitude":-79.64},{"id":"iem_D_40.310_-79.530_1786135740000","source":"iem","severity":"low","severityValue":25,"timestamp":1786135740000,"latitude":40.31,"longitude":-79.53},{"id":"iem_D_40.330_-79.600_1786135320000","source":"iem","severity":"low","severityValue":25,"timestamp":1786135320000,"latitude":40.33,"longitude":-79.6},{"id":"iem_F_40.510_-79.850_1786135020000","source":"iem","severity":"low","severityValue":25,"timestamp":1786135020000,"latitude":40.51,"longitude":-79.85},{"id":"iem_F_40.500_-79.870_1786134600000","source":"iem","severity":"low","severityValue":25,"timestamp":1786134600000,"latitude":40.5,"longitude":-79.87},{"id":"iem_F_40.300_-79.520_1786137300000","source":"iem","severity":"low","severityValue":25,"timestamp":1786137300000,"latitude":40.3,"longitude":-79.52},{"id":"iem_F_40.250_-79.630_1786139340000","source":"iem","severity":"low","severityValue":25,"timestamp":1786139340000,"latitude":40.25,"longitude":-79.63},{"id":"iem_E_40.380_-80.560_1786129560000","source":"iem","severity":"low","severityValue":25,"timestamp":1786129560000,"latitude":40.38,"longitude":-80.56},{"id":"iem_F_40.290_-79.500_1786139760000","source":"iem","severity":"low","severityValue":25,"timestamp":1786139760000,"latitude":40.29,"longitude":-79.5},{"id":"iem_F_40.410_-79.830_1786138200000","source":"iem","severity":"low","severityValue":25,"timestamp":1786138200000,"latitude":40.41,"longitude":-79.83},{"id":"iem_F_40.360_-80.600_1786130160000","source":"iem","severity":"low","severityValue":25,"timestamp":1786130160000,"latitude":40.36,"longitude":-80.6},{"id":"iem_D_40.390_-79.590_1786135080000","source":"iem","severity":"low","severityValue":25,"timestamp":1786135080000,"latitude":40.39,"longitude":-79.59},{"id":"iem_D_40.550_-80.030_1786143420000","source":"iem","severity":"low","severityValue":25,"timestamp":1786143420000,"latitude":40.55,"longitude":-80.03},{"id":"iem_D_40.360_-79.590_1786135320000","source":"iem","severity":"low","severityValue":25,"timestamp":1786135320000,"latitude":40.36,"longitude":-79.59},{"id":"iem_F_40.410_-79.830_1786136940000","source":"iem","severity":"low","severityValue":25,"timestamp":1786136940000,"latitude":40.41,"longitude":-79.83},{"id":"iem_F_40.460_-79.820_1786134000000","source":"iem","severity":"low","severityValue":25,"timestamp":1786134000000,"latitude":40.46,"longitude":-79.82}] |
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 41/100, near Penn Hills (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.