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.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 31 May 2026 at 00:00 UTC. It is kept here as a record.
It is the 18th strongest of the 84 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Storm Warning issued May 30 at 1:54PM EDT until May 30 at 8:00PM EDT by NWS Boston/Norton MA
An estimated 4,954,517 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 30, 2026 · score 52 · 0.0 km
- June 18, 2026 · score 64 · 0.0 km
- May 30, 2026 · score 52 · 0.0 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, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 46 / 100 |
| Our confidence | 80% |
| Coordinates | 42.2000, -71.5000 |
| Nearest City | Milford (7 km) |
| Population Exposed | 5.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-30T17:54:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8a451d7eafe3fce23f9c6d950d2c125a21432c69.005.1 |
Score Breakdown
Technical Details
| Event | Storm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary; Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM |
| Headline | Storm Warning issued May 30 at 1:54PM EDT until May 30 at 8:00PM EDT by NWS Boston/Norton MA |
| Expires | 2026-05-30T20:00:00-04:00 |
| SenderName | NWS Boston/Norton MA |
| HasExactCoords | false |
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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