This alert expired on 18 July 2026 at 20:15 UTC. It is kept here as a record.
No stronger detection stands among the 59 recorded within 20 km of this point since 12 March 2026 — 41 others scored the same. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 18 at 3:56PM EDT until July 18 at 4:15PM EDT by NWS Mount Holly NJ
An estimated 1,331,795 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 17, 2026 · score 52 · 7.3 km
- June 7, 2026 · score 43 · 11.1 km
- July 15, 2026 · score 52 · 12.4 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 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) | 52 / 100 |
| Our confidence | 80% |
| Coordinates | 40.2438, -73.6602 |
| Nearest City | Long Branch (29 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T19:56:00.000Z |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | 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; Fire Island Inlet NY to Moriches Inlet NY out 20 NM; Sandy Hook NJ to Fire Island Inlet NY out 20 NM; Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to 60 NM; Waters from Sandy Hook NJ to Fire Island Inlet NY out 20 to 60 NM |
| Headline | Special Marine Warning issued July 18 at 3:56PM EDT until July 18 at 4:15PM EDT by NWS Mount Holly NJ |
| Expires | 2026-07-18T16:15:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4fe55d3a11f2f517e19d5ce077e87b94dfc60ed3.001.1","noaa_urn:oid:2.49.0.1.840.0.f39182210080ac0116c19c070bd157ece36be85e.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.