This alert expired on 15 July 2026 at 22:15 UTC. It is kept here as a record.
It is the 2nd strongest of the 104 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 26 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 15 at 5:59PM EDT until July 15 at 6:15PM EDT by NWS Upton NY
An estimated 19,140,846 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 4, 2026 · score 52 · 4.9 km
- March 17, 2026 · score 52 · 5.9 km
- July 6, 2026 · score 52 · 9.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 81 % 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 | 81% |
| Coordinates | 40.3160, -73.7719 |
| Nearest City | Long Branch (19 km) |
| Population Exposed | 19.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-15T21:59:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | New York Harbor; Fire Island Inlet NY to Moriches Inlet NY out 20 NM; Sandy Hook NJ to Fire Island Inlet NY out 20 NM; Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM; Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM; Waters from Sandy Hook NJ to Manasquan Inlet NJ from 20 to 40 NM; Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM |
| Headline | Special Marine Warning issued July 15 at 5:59PM EDT until July 15 at 6:15PM EDT by NWS Upton NY |
| Expires | 2026-07-15T18:15:00-04:00 |
| SenderName | NWS Upton NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.dd67cf819d5cd883117d4843346773dc87bf524e.002.1","noaa_urn:oid:2.49.0.1.840.0.23b74b2852a7209c844f62fc48786108cb0b2807.001.1"] |
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 52/100, near Long Branch (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.