This alert expired on 19 July 2026 at 03:15 UTC. It is kept here as a record.
No stronger detection stands among the 19 recorded within 20 km of this point since 16 March 2026 — 5 others scored the same. The last comparable one was on 5 July 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 18 at 10:16PM EDT until July 18 at 11:15PM EDT by NWS Upton NY
An estimated 167,175 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 5, 2026 · score 43 · 7.6 km
- July 5, 2026 · score 43 · 13.8 km
- August 13, 2026 · score 43 · 16.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 41.2335, -71.5237 |
| Nearest City | South Kingstown (24 km) |
| Population Exposed | 167.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-19T02:16:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.fc22e268db5f544dd046b2affa2c273a |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River; Long Island Sound East of the Mouth of the Connecticut River; Peconic and Gardiners Bays; Moriches Inlet NY to Montauk Point NY out 20 NM; Nantucket Sound; Vineyard Sound; Buzzards Bay; Rhode Island Sound; 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 | Special Marine Warning issued July 18 at 10:16PM EDT until July 18 at 11:15PM EDT by NWS Upton NY |
| Expires | 2026-07-18T23:15:00-04:00 |
| SenderName | NWS Upton NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fc22e268db5f544dd046b2affa2c273a49ed0f90.001.1","noaa_urn:oid:2.49.0.1.840.0.75d9cffbe7c42cfe740147ee302d78c9be1871ca.002.1"] |
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.
Want to know when something happens near South Kingstown?
Calamity.live data shows a weather event with CalamityScore 43/100, near South Kingstown (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.