This alert expired on 8 August 2026 at 00:00 UTC. It is kept here as a record.
No stronger detection stands among the 86 recorded within 20 km of this point since 15 March 2026 — 25 others scored the same. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 7 at 7:15PM EDT until August 7 at 8:00PM EDT by NWS Pittsburgh PA
An estimated 633,621 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 4, 2026 · score 48 · 4.7 km
- August 16, 2026 · score 48 · 8.0 km
- August 7, 2026 · score 41 · 8.2 km
How we know
Confirmed by 9 independent sources, including NOAA.
Our own score for this event is 48 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) | 48 / 100 |
| Our confidence | 88% |
| Coordinates | 40.5050, -79.9278 |
| Nearest City | Allison Park (7 km) |
| Population Exposed | 633.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T23:15:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.41309caedb2a661cd1f9b5472d342d25 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Allegheny, PA |
| Headline | Severe Thunderstorm Warning issued August 7 at 7:15PM EDT until August 7 at 8:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-08-07T20:00:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.41309caedb2a661cd1f9b5472d342d25f7fd16d9.001.1","noaa_urn:oid:2.49.0.1.840.0.07007bf70173a2d71b43492e838b169202acc8fd.001.1"] |
| 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_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_40.510_-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_E_40.380_-80.560_1786129560000","source":"iem","severity":"low","severityValue":25,"timestamp":1786129560000,"latitude":40.38,"longitude":-80.56},{"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_40.550_-80.030_1786143420000","source":"iem","severity":"low","severityValue":25,"timestamp":1786143420000,"latitude":40.55,"longitude":-80.03},{"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 48/100, near Allison Park (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.