Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
2 other detections within 20 km in the last 24 hours, the nearest 11 km from here.
This alert expired on 13 September 2026 at 09:30 UTC. It is kept here as a record.
It is the 25th strongest of the 70 detections recorded within 20 km of this point since 17 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: Flash Flood Warning issued September 13 at 2:28AM EDT until September 13 at 5:30AM EDT by NWS Pittsburgh PA
Nearby, since 17 March 2026
- March 17, 2026 · score 22 · 3.8 km
- July 18, 2026 · score 46 · 18.4 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 16 out of 100, at 66 % 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) | 16 / 100 |
| Our confidence | 66% |
| Coordinates | 41.2514, -79.1877 |
| Nearest City | Jamestown (94 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-13T06:28:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a821187f4f9dc314dc4f099a2f02e2a3627c1db1.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Clarion, PA; Elk, PA |
| Headline | Flash Flood Warning issued September 13 at 2:28AM EDT until September 13 at 5:30AM EDT by NWS Pittsburgh PA |
| Expires | 2026-09-13T05:30:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a821187f4f9dc314dc4f099a2f02e2a3627c1db1.001.1","noaa_urn:oid:2.49.0.1.840.0.8a94c625b9925283f7860c20134b56485c09a3aa.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 4 SSE Plumville |
| Spc County | Indiana |
| Spc State | PA |
| Spc Comments | Trees down at Washington Church and Davis roads. (PBZ) |
| MergedSources | [{"id":"spc_wind_40.95_-79.13_15","source":"spc","severity":"medium","severityValue":45,"timestamp":1789281616709,"latitude":40.95,"longitude":-79.13},{"id":"spc_wind_40.74_-79.16_21","source":"spc","severity":"medium","severityValue":45,"timestamp":1789281616709,"latitude":40.74,"longitude":-79.16}] |
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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