This alert expired on 12 March 2026 at 02:35 UTC. It is kept here as a record.
It is the 3rd strongest of the 49 detections recorded within 20 km of this point since 12 March 2026.
What the source measured
NOAA reported: Special Marine Warning issued March 11 at 10:26PM EDT until March 11 at 10:30PM EDT by NWS Upton NY
An estimated 9,830,578 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 7, 2026 · score 52 · 2.1 km
- March 17, 2026 · score 52 · 6.2 km
- June 12, 2026 · score 52 · 11.5 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 85 % 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) | 52 / 100 |
| Our confidence | 85% |
| Coordinates | 40.4533, -73.4736 |
| Nearest City | Long Beach (22 km) |
| Population Exposed | 9.8M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-12T02:26:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Long Island Sound West of New Haven CT/Port Jefferson NY; 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; Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm; Waters from Sandy Hook NJ to Manasquan Inlet NJ out 20 to 40 nm and 1 more areas |
| Headline | Special Marine Warning issued March 11 at 10:26PM EDT until March 11 at 10:30PM EDT by NWS Upton NY |
| Expires | 2026-03-11T22:35:00-04:00 |
| SenderName | NWS Upton NY |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.81322606e8acc0ea3888e627040363b2fae6f039.001.1","noaa_urn:oid:2.49.0.1.840.0.97cc47f21dd69d4754116536f3fbc06feb0898e5.001.1","noaa_urn:oid:2.49.0.1.840.0.907155db5ded42dec0f3113cf23da3f4791409bb.002.1","noaa_urn:oid:2.49.0.1.840.0.d9bc60188359f3fc238beecc749d7a159b2d0a4f.002.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 40 |
| Iem Unit | MPH |
| Iem City | 2 N Glen Cove |
| Iem County | Nassau |
| Iem State | NY |
| Iem Wfo | OKX |
| Iem Remark | Mesonet station XBAY Bayville. |
| MergedSources | [{"id":"iem_M_40.900_-73.630_1773281220000","source":"iem","severity":"low","severityValue":25,"timestamp":1773281220000,"latitude":40.9,"longitude":-73.63}] |
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 52/100, near Long Beach (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.