Right now
The most recent data we hold from IEM arrived 31 minutes ago, and this point is in it.
3 other detections within 20 km in the last 24 hours, the nearest 6 km from here.
Reported by IEM today.
No stronger detection stands among the 7 recorded within 20 km of this point since 16 March 2026 — 6 others scored the same. The last comparable one was on 26 September 2026. 6 more were recorded here in the fortnight before it.
What the source measured
IEM reported: In Holbrook, numerous trees were down.
Nearby, since 16 March 2026
- May 19, 2026 · 8.9 km
- May 19, 2026 · 9.7 km
- May 19, 2026 · 13.0 km
How we know
One source: IEM. Not yet confirmed by a second, independent source.
Our own score for this event is 9 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 | Low |
| Calamity Score (ours) | 9 / 100 |
| Legacy data-support index | 0.43/1 |
| Coordinates | 42.1600, -71.0100 |
| Timestamp | 2026-09-27T00:33:00.000Z |
| 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: 2026-09-27T00:33:00.000Z.
First archived: 2026-09-27T02:48:10.907Z. Material modification: 2026-09-27T07:08:58.716Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-27T08:55:38.408Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T08:50:17.522Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T07:35:37.502Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T07:08:58.716Z · data_change
Index 46 → 9; severity medium → low; version 5 → 5.
2026-09-27T06:58:13.494Z · data_change
Index 9 → 46; severity low → medium; version 5 → 5.
2026-09-27T06:47:36.387Z · data_change
Index 46 → 9; severity medium → low; version 5 → 5.
2026-09-27T06:26:19.032Z · data_change
Index 9 → 46; severity low → medium; version 5 → 5.
2026-09-27T06:10:25.437Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T05:59:45.793Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T05:38:17.463Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T05:27:40.489Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T05:06:34.597Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T04:50:36.409Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T03:52:02.984Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T03:30:44.534Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
2026-09-27T03:09:36.566Z · data_change
Index 9 → 9; severity low → low; version 5 → 5.
Score Breakdown
Technical Details
| TypeSummary | Wind damage |
| LsrCode | O |
| LsrType | NON-TSTM WND DMG |
| City | 1 N Holbrook |
| County | Norfolk |
| State | MA |
| Wfo | BOX |
| Remark | In Holbrook, numerous trees were down. |
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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