Right now
The most recent data we hold from NOAA arrived 19 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 30 June 2026 at 18:45 UTC. It is kept here as a record.
No stronger detection stands among the 24 recorded within 20 km of this point since 7 April 2026 — 11 others scored the same. 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 June 30 at 1:49PM EDT until June 30 at 2:45PM EDT by NWS Buffalo NY
Urban PEI: 183,151 within a heuristic 50 km radius; not unique people.
Nearby, since 7 April 2026
- August 13, 2026 · score 43 · 8.4 km
- May 20, 2026 · score 43 · 15.4 km
- September 3, 2026 · score 37 · 17.9 km
How we know
4 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 43 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) | 43 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 44.2424, -75.9050 |
| Nearest City | Watertown (30 km) |
| Urban exposure index (PEI) | 183.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-30T17:49:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.f93d08ef1a855feba94bbfdd8dcf652b |
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: 2026-06-30T17:49:00.000Z.
First archived: 2026-06-30T17:58:03.533Z. 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 | St. Lawrence River above Ogdensburg NY; St. Lawrence River from Ogdensburg to St. Regis NY; 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 June 30 at 1:49PM EDT until June 30 at 2:45PM EDT by NWS Buffalo NY |
| Expires | 2026-06-30T14:45:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f93d08ef1a855feba94bbfdd8dcf652b34ecafba.001.1","noaa_urn:oid:2.49.0.1.840.0.893fd97cae79f0c7f4c1eb36de14fec55108d770.001.1","noaa_urn:oid:2.49.0.1.840.0.13fc0d797ab086a82a1be84c3be50f46e1cc44de.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 | Cape Vincent |
| 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 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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