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 3 September 2026 at 02:00 UTC. It is kept here as a record.
No stronger detection stands among the 29 recorded within 20 km of this point since 9 March 2026 — one other scored the same. The last comparable one was on 28 August 2026.
What the source measured
NOAA reported: Tornado Warning issued September 2 at 9:09PM EDT until September 2 at 10:00PM EDT by NWS Binghamton NY
Urban PEI: 193,837 within a heuristic 50 km radius; not unique people.
Nearby, since 9 March 2026
- June 18, 2026 · 3.2 km
- September 3, 2026 · score 67 · 7.9 km
- March 17, 2026 · 15.1 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 67 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 | Critical |
| Calamity Score (ours) | 67 / 100 |
| Legacy data-support index | 0.86/1 |
| Coordinates | 42.6557, -76.0286 |
| Nearest City | Cortland (14 km) |
| Urban exposure index (PEI) | 193.8K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-09-03T01:09:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.d31155b1039299442ae5c9e801500ddd2015417a.001.1 |
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: noaa. Occurrence: 2026-09-03T01:09:00.000Z.
First archived: 2026-09-03T01:16:23.981Z. 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 | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cayuga, NY; Chenango, NY; Cortland, NY; Madison, NY; Onondaga, NY |
| Headline | Tornado Warning issued September 2 at 9:09PM EDT until September 2 at 10:00PM EDT by NWS Binghamton NY |
| Expires | 2026-09-02T22:00:00-04:00 |
| SenderName | NWS Binghamton NY |
| HasExactCoords | true |
| Spc ReportType | wind |
| Spc Speed | 76 |
| Spc Location | 2 SSW Seneca Falls |
| Spc County | Seneca |
| Spc State | NY |
| Spc Comments | Waterloo NYS Mesonet. (BGM) |
| MergedSources | [{"id":"spc_wind_42.88_-76.81_188","source":"spc","severity":"high","severityValue":70,"timestamp":1788396000000,"latitude":42.88,"longitude":-76.81}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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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