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.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 3 August 2026 at 00:45 UTC. It is kept here as a record.
It is the 10th strongest of the 96 detections recorded within 20 km of this point since 9 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 2 at 8:36PM EDT until August 2 at 8:45PM EDT by NWS Buffalo NY
Urban PEI: 855,206 within a heuristic 50 km radius; not unique people.
Nearby, since 9 March 2026
- July 21, 2026 · score 48 · 6.5 km
- September 2, 2026 · score 41 · 9.8 km
- July 18, 2026 · score 48 · 10.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 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) | 48 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 43.1048, -78.4718 |
| Nearest City | Lockport (19 km) |
| Urban exposure index (PEI) | 855.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-03T00:36:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.a6e36a16571de98be4f4d20f62629f94 |
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: 2026-08-03T00:36:00.000Z.
First archived: 2026-08-03T00:44:49.720Z. 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 | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Niagara River to Hamlin Beach NY; Hamlin Beach to Sodus Bay NY; Niagara River to Hamlin Beach NY beyond 5NM off shoreline to US-Canadian border; Hamlin Beach to Sodus Bay NY beyond 5NM off shoreline to US-Canadian border; Upper Niagara River and Buffalo Harbor; Dunkirk to Buffalo NY; Ripley to Buffalo NY extending from 5NM off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued August 2 at 8:36PM EDT until August 2 at 8:45PM EDT by NWS Buffalo NY |
| Expires | 2026-08-02T20:45:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a6e36a16571de98be4f4d20f62629f946108cbb3.001.1","noaa_urn:oid:2.49.0.1.840.0.f623e7dd5ebb1cb01aeca1c2688cc4b1e5dde137.002.1"] |
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.
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