Right now
The most recent data we hold from NOAA arrived 19 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 August 2026 at 02:15 UTC. It is kept here as a record.
It is the 4th strongest of the 44 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 2 at 8:42PM EDT until August 2 at 10:15PM EDT by NWS Binghamton NY
Urban PEI: 26,973 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- September 1, 2026 · score 46 · 11.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 41.5521, -76.4851 |
| Nearest City | Back Mountain (47 km) |
| Urban exposure index (PEI) | 27.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-03T00:42:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.84dacf34afe18d884775d8dec50d9c74 |
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: 2026-08-03T00:42:00.000Z.
First archived: 2026-08-03T00:44:49.757Z. 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 | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Bradford, PA; Broome, NY; Chenango, NY; Tioga, NY; Susquehanna, PA; Lycoming, PA and 1 more areas |
| Headline | Flash Flood Warning issued August 2 at 8:42PM EDT until August 2 at 10:15PM EDT by NWS Binghamton NY |
| Expires | 2026-08-02T22:15:00-04:00 |
| SenderName | NWS Binghamton NY |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.84dacf34afe18d884775d8dec50d9c74dcf3c5ff.001.1","noaa_urn:oid:2.49.0.1.840.0.931f998eabfab75035af9ec86ac170fc08cebdbd.001.1","noaa_urn:oid:2.49.0.1.840.0.b3dc02fb4c34a38e348855df89f50ade077f3cff.001.1","noaa_urn:oid:2.49.0.1.840.0.7afdb1668fbacf1fcd5f51e7da3f554a9c828a7a.001.1","noaa_urn:oid:2.49.0.1.840.0.24588da49bc62840192e3b07c2c0a6ec5baf32bc.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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