This alert expired on 15 March 2026 at 05:45 UTC. It is kept here as a record.
It is the 4th strongest of the 84 detections recorded within 20 km of this point since 16 March 2026. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Storm Watch issued March 14 at 12:38PM EDT until March 17 at 8:00AM 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 52 out of 100, at 78 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 78% |
| Coordinates | 42.2000, -71.5000 |
| Nearest City | Milford (7 km) |
| Population Exposed | 5.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T21:00:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_8466dabb67bf4022b57f2f469669743aab473700_005_2 |
Score Breakdown
Technical Details
| Event | Storm Watch |
| Urgency | Future |
| Certainty | Possible |
| 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; Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket; Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island |
| Headline | Storm Watch issued March 14 at 12:38PM EDT until March 17 at 8:00AM EDT by NWS Boston/Norton MA |
| Expires | 2026-03-15T01:45:00-04:00 |
| 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 10 February 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.
Want to know when something happens near Milford?
Calamity.live data shows a weather event with CalamityScore 52/100, near Milford (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.