Right now
The most recent data we hold from IEM arrived 6 minutes ago, and this point is in it.
4 other detections within 20 km in the last 24 hours, the nearest 1 km from here.
Reported by IEM today.
It is the strongest of the 5 detections recorded within 20 km of this point since 20 May 2026. The last comparable one was on 21 August 2026.
What the source measured
IEM reported: Mesonet station EW5678 Stony Brook at a height of 350 ft AGL.
Urban PEI: 2,774,946 within a heuristic 50 km radius; not unique people.
Nearby, since 20 May 2026
- July 19, 2026 · 9.9 km
- June 11, 2026 · 13.1 km
- August 7, 2026 · 15.0 km
How we know
One source: IEM. 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 | 0.64/1 |
| Coordinates | 40.9100, -73.1200 |
| Nearest City | Setauket-East Setauket (3 km) |
| Urban exposure index (PEI) | 2.8M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-26T07:59:00.000Z |
| Source | https://mesonet.agron.iastate.edu/lsr/ |
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: iem. Occurrence: 2026-09-26T07:59:00.000Z.
First archived: 2026-09-26T15:06:07.226Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-26T15:17:07.400Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| TypeSummary | Wind gust |
| LsrCode | N |
| LsrType | NON-TSTM WND GST |
| Magnitude | 65 |
| Unit | MPH |
| City | 1 E Stony Brook |
| County | Suffolk |
| State | NY |
| Wfo | OKX |
| Remark | Mesonet station EW5678 Stony Brook at a height of 350 ft AGL. |
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.
Want to know when something happens near Setauket-East Setauket?