Right now
The most recent data we hold from NOAA arrived 3 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 2 July 2026 at 01:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 5 detections recorded within 20 km of this point since 16 May 2026. The last comparable one was on 18 June 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 1 at 7:34PM EDT until July 1 at 9:00PM EDT by NWS Buffalo NY
An estimated 43,283 people live within 50 km of this point.
Nearby, since 16 May 2026
- July 9, 2026 · score 43 · 18.0 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, at 78 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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 |
| Our confidence | 78% |
| Coordinates | 43.8022, -76.7154 |
| Nearest City | Oswego (41 km) |
| Population Exposed | 43.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-01T23:34:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.dfdb6eb32b9a8e3f304cbf4884f63c83 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | St. Lawrence River above Ogdensburg NY; St. Lawrence River from Ogdensburg to St. Regis NY; Hamlin Beach to Sodus Bay NY; Hamlin Beach to Sodus Bay NY beyond 5NM off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued July 1 at 7:34PM EDT until July 1 at 9:00PM EDT by NWS Buffalo NY |
| Expires | 2026-07-01T21:00:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.dfdb6eb32b9a8e3f304cbf4884f63c83363208ef.001.1","noaa_urn:oid:2.49.0.1.840.0.47e8836988aa1c7c6c2b53b42414837321bcc38e.001.1"] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.