This alert expired on 11 June 2026 at 22:30 UTC. It is kept here as a record.
It is the 11th strongest of the 32 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 11 at 5:40PM EDT until June 11 at 6:30PM EDT by NWS Upton NY
An estimated 2,313,180 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 5, 2026 · score 52 · 5.8 km
- July 21, 2026 · score 52 · 11.9 km
- March 12, 2026 · score 52 · 12.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 80 % 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) | 46 / 100 |
| Our confidence | 80% |
| Coordinates | 41.0793, -73.0102 |
| Nearest City | Stratford (15 km) |
| Population Exposed | 2.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-11T21:40:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River; Long Island Sound West of New Haven CT/Port Jefferson NY; Long Island Sound West of New Haven CT/Port Jefferson NY |
| Headline | Special Marine Warning issued June 11 at 5:40PM EDT until June 11 at 6:30PM EDT by NWS Upton NY |
| Expires | 2026-06-11T18:30:00-04:00 |
| SenderName | NWS Upton NY |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e1518df542eb48ad97b71c556aef780026548300.001.1","noaa_urn:oid:2.49.0.1.840.0.9982557a8946fd01bdf2792630f9815f9c365f71.001.1","noaa_urn:oid:2.49.0.1.840.0.153439cc694722e02d9902c687d7412d3cefa390.001.1"] |
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 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 46/100, near Stratford (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.