Right now
The most recent data we hold from NOAA arrived 4 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
9 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert expired on 25 September 2026 at 19:00 UTC. It is kept here as a record.
No stronger detection stands among the 12 recorded within 20 km of this point since 12 March 2026 — 11 others scored the same. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Storm Warning issued September 25 at 1:52AM EDT until September 26 at 6:00PM EDT by NWS Mount Holly NJ
Urban PEI: 3,327,294 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- September 25, 2026 · score 46 · 0.0 km
- July 3, 2026 · 0.0 km
- September 2, 2026 · 4.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
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 v5. 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 | 0.81/1 |
| Coordinates | 39.6500, -75.0000 |
| Nearest City | Williamstown (4 km) |
| Urban exposure index (PEI) | 3.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-25T22:00:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.cf5a07f0f4777766e99ddf4342f633e87cc05b56.006.2 |
Physical priority index · v5. 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: 2026-09-25T22:00:00.000Z.
First archived: 2026-09-25T05:58:46.758Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-25T06:37:01.091Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
2026-09-25T06:04:52.001Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Storm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Waters from Cape May NJ to Fenwick Island DE from 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; 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; Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM; Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM and 3 more areas |
| Headline | Storm Warning issued September 25 at 1:52AM EDT until September 26 at 6:00PM EDT by NWS Mount Holly NJ |
| Expires | 2026-09-25T15:00:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | false |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.cf5a07f0f4777766e99ddf4342f633e87cc05b56.006.2","noaa_urn:oid:2.49.0.1.840.0.cf5a07f0f4777766e99ddf4342f633e87cc05b56.003.3","noaa_urn:oid:2.49.0.1.840.0.cf5a07f0f4777766e99ddf4342f633e87cc05b56.002.3","noaa_urn:oid:2.49.0.1.840.0.cf5a07f0f4777766e99ddf4342f633e87cc05b56.005.2","noaa_urn:oid:2.49.0.1.840.0.2aa968b596be4136a2518d5d207851e21779d141.002.3","noaa_urn:oid:2.49.0.1.840.0.2c6451ceb95c336c033551dbf68e512182a36a11.001.3"] |
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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