Right now
The most recent data we hold from NOAA arrived 7 minutes ago, and this point is in it.
9 other detections within 20 km in the last 24 hours, the nearest 7 km from here.
This alert is in force until 13 September 2026, 20:00 UTC.
It is the 670th strongest of the 737 detections recorded within 20 km of this point since 10 March 2026. Another comparable one was recorded here earlier the same day. 20 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued September 13 at 9:57AM EDT until September 13 at 4:00PM EDT by NWS Upton NY
An estimated 27,344,175 people live within 50 km of this point.
Nearby, since 10 March 2026
- July 21, 2026 · score 46 · 0.0 km
- July 21, 2026 · score 52 · 4.3 km
- July 19, 2026 · score 52 · 5.0 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 46 out of 100, at 86 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. 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 |
| Our confidence | 86% |
| Coordinates | 40.9267, -74.0833 |
| Nearest City | Paramus (2 km) |
| Population Exposed | 27.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-13T13:57:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.5c2ee7d82f282ab7ab7fe2ee4080f79fd8a962a4.001.1 |
Score Breakdown
35
intensity
100
population
0
cascading
18
historical
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Bergen, NJ |
| Headline | Flood Warning issued September 13 at 9:57AM EDT until September 13 at 4:00PM EDT by NWS Upton NY |
| Expires | 2026-09-13T16:00:00-04:00 |
| SenderName | NWS Upton NY |
| HasExactCoords | true |
| Iem TypeSummary | R |
| Iem Magnitude | 4.32 |
| Iem Unit | Inch |
| Iem City | 1 NW Florham Park |
| Iem County | Morris |
| Iem State | NJ |
| Iem Wfo | PHI |
| Iem Remark | Mesonet station MSTN4 1.4 NW Florham Park. |
| MergedSources | 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|
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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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