This alert expired on 1 September 2026 at 23:45 UTC. It is kept here as a record.
It is the 147th strongest of the 198 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Special Marine Warning issued September 1 at 7:01PM EDT until September 1 at 7:45PM EDT by NWS Upton NY
An estimated 23,265,821 people live within 50 km of this point.
Nearby, since 12 March 2026
- June 22, 2026 · score 52 · 3.5 km
- July 19, 2026 · score 52 · 3.9 km
- July 18, 2026 · score 52 · 3.9 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 46 out of 100, at 91 % 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 | 91% |
| Coordinates | 40.3542, -74.0220 |
| Nearest City | Long Branch (7 km) |
| Population Exposed | 23.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-01T23:01:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.9c536de72f41fcb65bb8231a42676dae99e29251.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | New York Harbor; Sandy Hook NJ to Fire Island Inlet NY out 20 NM; Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM |
| Headline | Special Marine Warning issued September 1 at 7:01PM EDT until September 1 at 7:45PM EDT by NWS Upton NY |
| Expires | 2026-09-01T19:45:00-04:00 |
| SenderName | NWS Upton NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9c536de72f41fcb65bb8231a42676dae99e29251.001.1","noaa_urn:oid:2.49.0.1.840.0.ef551d45d3f761bfeeaedb9250cc209655b1c455.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 1 WSW Tompkinsville |
| Spc County | Richmond |
| Spc State | NY |
| Spc Comments | Large tree branch on wires. (OKX) |
| Iem TypeSummary | D |
| Iem City | 1 WSW Tompkinsville |
| Iem County | Richmond |
| 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.
Want to know when something happens near Long Branch?
Calamity.live data shows a weather event with CalamityScore 46/100, near Long Branch (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.