Right now
The most recent data we hold from NOAA arrived 17 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 01:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 128 detections recorded within 20 km of this point since 9 March 2026. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 2 at 7:10PM EDT until August 2 at 9:45PM EDT by NWS Buffalo NY
Urban PEI: 1,028,321 within a heuristic 50 km radius; not unique people.
Nearby, since 9 March 2026
- August 3, 2026 · score 52 · 0.0 km
- July 18, 2026 · score 48 · 5.2 km
- September 13, 2026 · score 46 · 6.0 km
How we know
6 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 52 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) | 52 / 100 |
| Legacy data-support index | 0.92/1 |
| Coordinates | 43.1640, -78.6240 |
| Nearest City | Lockport (5 km) |
| Urban exposure index (PEI) | 1.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-02T23:10:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.52c5cfaa3661876a4548c1271eb49961332adb20.001.1 |
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: 2026-08-02T23:10:00.000Z.
First archived: 2026-08-03T00:18:33.564Z. 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 | Niagara, NY; Orleans, NY |
| Headline | Flash Flood Warning issued August 2 at 7:10PM EDT until August 2 at 9:45PM EDT by NWS Buffalo NY |
| Expires | 2026-08-02T21:45:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 2 ESE Sanborn |
| Iem County | Niagara |
| Iem State | NY |
| Iem Wfo | BUF |
| Iem Remark | Lockport Road at Shawnee Road impassible with water over the road. |
| MergedSources | [{"id":"iem_F_43.170_-78.690_1785709020000","source":"iem","severity":"low","severityValue":25,"timestamp":1785709020000,"latitude":43.17,"longitude":-78.69},{"id":"iem_F_43.120_-78.860_1785707520000","source":"iem","severity":"low","severityValue":25,"timestamp":1785707520000,"latitude":43.12,"longitude":-78.86},{"id":"iem_F_43.180_-78.820_1785709500000","source":"iem","severity":"low","severityValue":25,"timestamp":1785709500000,"latitude":43.18,"longitude":-78.82},{"id":"iem_F_43.120_-78.830_1785710580000","source":"iem","severity":"low","severityValue":25,"timestamp":1785710580000,"latitude":43.12,"longitude":-78.83},{"id":"iem_F_43.130_-78.840_1785712500000","source":"iem","severity":"low","severityValue":25,"timestamp":1785712500000,"latitude":43.13,"longitude":-78.84}] |
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.
Review the area, threshold and delivery channel in your account.
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