Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 7 August 2026 at 22:45 UTC. It is kept here as a record.
It is the 129th strongest of the 166 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 7 at 6:35PM EDT until August 7 at 6:45PM EDT by NWS Mount Holly NJ
Urban PEI: 1,726,292 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- August 7, 2026 · score 52 · 0.0 km
- July 4, 2026 · score 52 · 6.4 km
- July 4, 2026 · score 52 · 7.2 km
How we know
4 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 46 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.88/1 |
| Coordinates | 40.0866, -74.4847 |
| Nearest City | Mercerville-Hamilton Square (22 km) |
| Urban exposure index (PEI) | 1.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T22:35:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.8d5bc9d6551aaa22f9df505448cdd405 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-08-07T22:35:00.000Z.
First archived: 2026-08-07T22:38:58.301Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Delaware Bay waters north of East Point NJ to Slaughter Beach DE; 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; 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; South Shore Bays from Jones Inlet through Shinnecock Bay; 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 and 2 more areas |
| Headline | Special Marine Warning issued August 7 at 6:35PM EDT until August 7 at 6:45PM EDT by NWS Mount Holly NJ |
| Expires | 2026-08-07T18:45:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8d5bc9d6551aaa22f9df505448cdd40556083b84.001.1","noaa_urn:oid:2.49.0.1.840.0.202d419424523554ae319af79707d19c90b1b9e1.001.1","noaa_urn:oid:2.49.0.1.840.0.bd9b18d6633b2d8cbc9f05f3f94959b45b8a8f0d.001.1","noaa_urn:oid:2.49.0.1.840.0.6169f96e0c463bf01af8f630bfe1df96c65d7dc9.001.1","noaa_urn:oid:2.49.0.1.840.0.e7927a9899b1647f4986b8033d7c1a33b490bae0.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 ENE Freehold Twp |
| Iem County | Monmouth |
| Iem State | NJ |
| Iem Wfo | PHI |
| Iem Remark | NJ DOT: Downed tree on NJ 33 Westbound West of US 9 (Freehold Twp), 1 right lane of 2 lanes, right shoulder closed. Time estimated from radar. |
| MergedSources | [{"id":"iem_G_40.160_-74.890_1786137540000","source":"iem","severity":"low","severityValue":25,"timestamp":1786137540000,"latitude":40.16,"longitude":-74.89},{"id":"iem_F_40.470_-74.490_1786140540000","source":"iem","severity":"low","severityValue":25,"timestamp":1786140540000,"latitude":40.47,"longitude":-74.49},{"id":"iem_D_40.240_-74.280_1786140960000","source":"iem","severity":"low","severityValue":25,"timestamp":1786140960000,"latitude":40.24,"longitude":-74.28}] |
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 8 March 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.
Review the area, threshold and delivery channel in your account.
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