This alert expired on 18 March 2026 at 18:15 UTC. It is kept here as a record.
No stronger detection stands among the 19 recorded within 20 km of this point since 11 March 2026 — 8 others scored the same. The last comparable one was on 17 March 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued March 17 at 9:33PM EDT until March 19 at 2:00AM EDT by NWS Boston/Norton MA
An estimated 2,169,483 people live within 50 km of this point.
Nearby, since 11 March 2026
- March 12, 2026 · score 52 · 0.0 km
- March 11, 2026 · score 52 · 0.0 km
- August 13, 2026 · score 52 · 11.5 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 81 % 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) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 41.8740, -71.0640 |
| Nearest City | Taunton (4 km) |
| Population Exposed | 2.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-18T01:33:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b2710b2cea3747606016f9db5edec8f06e13e42e.002.1 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Bristol, MA; Plymouth, MA |
| Headline | Flood Warning issued March 17 at 9:33PM EDT until March 19 at 2:00AM EDT by NWS Boston/Norton MA |
| Expires | 2026-03-18T14:15:00-04:00 |
| SenderName | NWS Boston/Norton MA |
| HasExactCoords | true |
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.
Want to know when something happens near Taunton?
Calamity.live data shows a weather event with CalamityScore 52/100, near Taunton (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.