Right now
The most recent data we hold from NOAA arrived 4 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 16 May 2026 at 20:45 UTC. It is kept here as a record.
No stronger detection stands among the 11 recorded within 20 km of this point since 13 May 2026 — 5 others scored the same. The last comparable one was on 13 May 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 16 at 4:10PM EDT until May 16 at 4:45PM EDT by NWS Buffalo NY
An estimated 17,787 people live within 50 km of this point.
Nearby, since 13 May 2026
- September 3, 2026 · score 28 · 18.6 km
- July 1, 2026 · score 34 · 20.2 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 80 % 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 | 80% |
| Coordinates | 43.6357, -76.6146 |
| Nearest City | Oswego (21 km) |
| Population Exposed | 17.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-16T20:10:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.251fc90ea0496acaf1a33deccc2c8827 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Hamlin Beach to Sodus Bay NY; Sodus Bay to Mexico Bay NY; Hamlin Beach to Sodus Bay NY beyond 5NM off shoreline to US-Canadian border; Sodus Bay to Mexico Bay NY beyond 5NM off shoreline to US-Canadian border; Sodus Bay to Mexico Bay NY; Mexico Bay NY to the St. Lawrence River; Sodus Bay to Mexico Bay NY beyond 5NM off shoreline to US-Canadian border; Mexico Bay NY to the St. Lawrence River beyond 5NM off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued May 16 at 4:10PM EDT until May 16 at 4:45PM EDT by NWS Buffalo NY |
| Expires | 2026-05-16T16:45:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.251fc90ea0496acaf1a33deccc2c8827c3f5be67.001.1","noaa_urn:oid:2.49.0.1.840.0.03819da68bad4b2a981e959a20384e12e1fff242.001.1"] |
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 near Oswego?
Calamity.live data shows a weather event with CalamityScore 34/100, near Oswego (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.