Right now
The most recent data we hold from NOAA arrived 6 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
One other detection within 20 km in the last 24 hours, 8 km from here.
This alert expired on 13 September 2026 at 00:00 UTC. It is kept here as a record.
It is the 55th strongest of the 103 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 10 September 2026. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued September 12 at 4:55PM EDT until September 12 at 8:00PM EDT by NWS Pittsburgh PA
An estimated 34,885 people live within 50 km of this point.
Nearby, since 17 March 2026
- May 27, 2026 · score 39 · 5.3 km
- August 8, 2026 · score 34 · 9.3 km
- August 7, 2026 · score 34 · 9.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 80% |
| Coordinates | 39.4904, -80.5277 |
| Nearest City | Clarksburg (28 km) |
| Population Exposed | 34.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-12T20:55:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.5d0a872ff946c50013f0aba80aaff2e6febc1306.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Armstrong, PA; Indiana, PA; Garrett, MD; Clay, WV; Kanawha, WV; Roane, WV and 5 more areas |
| Headline | Flash Flood Warning issued September 12 at 4:55PM EDT until September 12 at 8:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-09-12T20:00:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5d0a872ff946c50013f0aba80aaff2e6febc1306.001.1","noaa_urn:oid:2.49.0.1.840.0.631ea24f7a2c1b840d2ab54b0e37cf366348017a.001.1","noaa_urn:oid:2.49.0.1.840.0.48baafe5b810ecb2f407f4bebe001b44fe05d02d.001.1","noaa_urn:oid:2.49.0.1.840.0.408d5c4f1076b18477888d9bcedbb67e2a59ca7d.001.1","noaa_urn:oid:2.49.0.1.840.0.2d5d3159df44d8eb76de296918a9fb6754873736.001.1","noaa_urn:oid:2.49.0.1.840.0.f0e740322e42ae84a8b7c0fc5c043d8ef917c23e.001.1","noaa_urn:oid:2.49.0.1.840.0.93fa3f7f2438b90ef4828146351e685641151d89.001.1","noaa_urn:oid:2.49.0.1.840.0.db1a6a9bf3b7dd9e8ab2585b5b7554b4a7cfe4ae.001.1"] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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.
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