This alert expired on 30 June 2026 at 19:00 UTC. It is kept here as a record.
No stronger detection stands among the 22 recorded within 20 km of this point since 15 March 2026 — 14 others scored the same. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 30 at 2:25PM EDT until June 30 at 3:00PM EDT by NWS Buffalo NY
An estimated 159,265 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 1, 2026 · score 43 · 13.1 km
- May 20, 2026 · score 43 · 13.7 km
- June 14, 2026 · score 43 · 15.5 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 90% |
| Coordinates | 44.0312, -75.9842 |
| Nearest City | Watertown (9 km) |
| Population Exposed | 159.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-30T18:25:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.fc0f69faf7d83b1e42ca6f25d878e0cd |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | 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; St. Lawrence River above Ogdensburg NY; St. Lawrence River from Ogdensburg to St. Regis NY |
| Headline | Special Marine Warning issued June 30 at 2:25PM EDT until June 30 at 3:00PM EDT by NWS Buffalo NY |
| Expires | 2026-06-30T15:00:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fc0f69faf7d83b1e42ca6f25d878e0cddbf61914.001.1","noaa_urn:oid:2.49.0.1.840.0.f93d08ef1a855feba94bbfdd8dcf652b34ecafba.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | Cape Vincent |
| Spc County | Jefferson |
| Spc State | NY |
| Spc Comments | Widespread trees and power lines down in the Cape Vincent area. (BUF) |
| Iem TypeSummary | D |
| Iem City | Clayton |
| Iem County | Jefferson |
| Iem State | NY |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 43/100, near Watertown (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.