Right now
The most recent data we hold from SPC arrived 27 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Reported by SPC 22 days ago.
What the source measured
SPC reported: Wind UNK kt near 1 SW Lewis Run, McKean, PA. Tree down on Decasper Drive off Route 219. (CTP)
How we know
2 recorded sources include SPC; independence is not established by this count.
Our own score for this event is 16 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 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 |
| Legacy data-support index | 0.58/1 |
| Coordinates | 41.8600, -78.6700 |
| Nearest City | Jamestown (54 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-03T03:20:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Physical priority index · v4 (historical). 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: spc. Occurrence: 2026-09-03T03:20:00.000Z.
First archived: 2026-09-03T08:02:29.834Z. 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
| ReportType | wind |
| Speed | UNK |
| Location | 1 SW Lewis Run |
| County | McKean |
| State | PA |
| Comments | Tree down on Decasper Drive off Route 219. (CTP) |
| Iem TypeSummary | D |
| Iem City | 1 SW Lewis Run |
| Iem County | McKean |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Tree down on Decasper Drive off Route 219. |
| MergedSources | [{"id":"iem_D_41.860_-78.670_1788405600000","source":"iem","severity":"low","severityValue":25,"timestamp":1788405600000,"latitude":41.86,"longitude":-78.67}] |
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.
Want to know when something happens in this area?