Right now
The most recent data we hold from NOAA arrived 7 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 7 August 2026 at 23:45 UTC. It is kept here as a record.
It is the 56th strongest of the 163 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 7 at 6:54PM EDT until August 7 at 7:45PM EDT by NWS Pittsburgh PA
Urban PEI: 633,621 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- August 7, 2026 · score 41 · 1.7 km
- August 7, 2026 · score 48 · 6.9 km
- September 4, 2026 · score 54 · 8.3 km
How we know
18 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 41 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 41 / 100 |
| Legacy data-support index | 0.87/1 |
| Coordinates | 40.5456, -79.8667 |
| Nearest City | Penn Hills (6 km) |
| Urban exposure index (PEI) | 633.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T22:54:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.84b0da051450e026d0f9b91456cfbce69b6047f8.001.1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-08-07T22:54:00.000Z.
First archived: 2026-08-07T23:04:48.402Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Allegheny, PA |
| Headline | Severe Thunderstorm Warning issued August 7 at 6:54PM 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_40.410_-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_40.360_-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 8 March 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.
Review the area, threshold and delivery channel in your account.
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