Right now
The most recent data we hold from NOAA arrived 11 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 5 July 2026 at 04:15 UTC. It is kept here as a record.
It is one of only 3 we have recorded within 20 km of this point since 5 July 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 4 at 11:21PM EDT until July 5 at 12:15AM EDT by NWS Mount Holly NJ
Nearby, since 5 July 2026
- July 5, 2026 · score 22 · 5.2 km
How we know
9 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.71/1 |
| Coordinates | 39.2978, -73.5509 |
| Nearest City | Atlantic City (75 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-05T03:21:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.6a66a1048b4b712eed9337f6c05fc224 |
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: 2026-07-05T03:21:00.000Z.
First archived: 2026-07-05T03:31:53.107Z. 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 | 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; Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 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; Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM; Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM; Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM; Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM |
| Headline | Special Marine Warning issued July 4 at 11:21PM EDT until July 5 at 12:15AM EDT by NWS Mount Holly NJ |
| Expires | 2026-07-05T00:15:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6a66a1048b4b712eed9337f6c05fc22410731237.002.1","noaa_urn:oid:2.49.0.1.840.0.d191aca55e22161c09ca1e9ee1c51a585e8cbc9d.001.1","noaa_urn:oid:2.49.0.1.840.0.2096da7d2e4b20558bc04be568201f6e66d81923.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 51 |
| Iem Unit | MPH |
| Iem City | 1 E Beach Haven |
| Iem County | ANZ451 |
| Iem State | NJ |
| Iem Wfo | PHI |
| Iem Remark | Beach Haven mesonet gusted to 51 MPH. |
| MergedSources | [{"id":"iem_M_39.400_-74.360_1783217820000","source":"iem","severity":"low","severityValue":25,"timestamp":1783217820000,"latitude":39.4,"longitude":-74.36},{"id":"iem_G_39.760_-74.110_1783218420000","source":"iem","severity":"low","severityValue":25,"timestamp":1783218420000,"latitude":39.76,"longitude":-74.11},{"id":"iem_M_39.660_-74.210_1783217940000","source":"iem","severity":"low","severityValue":25,"timestamp":1783217940000,"latitude":39.66,"longitude":-74.21},{"id":"iem_M_39.790_-74.140_1783218180000","source":"iem","severity":"low","severityValue":25,"timestamp":1783218180000,"latitude":39.79,"longitude":-74.14},{"id":"iem_M_39.500_-74.300_1783217400000","source":"iem","severity":"low","severityValue":25,"timestamp":1783217400000,"latitude":39.5,"longitude":-74.3},{"id":"iem_M_39.700_-74.130_1783218000000","source":"iem","severity":"low","severityValue":25,"timestamp":1783218000000,"latitude":39.7,"longitude":-74.13},{"id":"iem_M_39.750_-74.090_1783218240000","source":"iem","severity":"low","severityValue":25,"timestamp":1783218240000,"latitude":39.75,"longitude":-74.09},{"id":"iem_M_39.560_-74.220_1783217760000","source":"iem","severity":"low","severityValue":25,"timestamp":1783217760000,"latitude":39.56,"longitude":-74.22}] |
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.
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