Right now
The most recent data we hold from NOAA arrived 6 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 9 August 2026 at 00:00 UTC. It is kept here as a record.
No stronger detection stands among the 44 recorded within 20 km of this point since 16 March 2026 — 7 others scored the same. Another comparable one was recorded here earlier the same day. 28 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 8 at 7:21PM EDT until August 8 at 8:00PM EDT by NWS Boston/Norton MA
An estimated 3,135,710 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 4, 2026 · score 52 · 5.2 km
- June 26, 2026 · score 52 · 6.6 km
- June 26, 2026 · score 52 · 10.4 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 90 % 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 | 90% |
| Coordinates | 42.6830, -70.7370 |
| Nearest City | Gloucester (10 km) |
| Population Exposed | 3.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-08T23:21:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0d19e2b649efa0a59ea02f60599b7031dfa4a70b.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Essex, MA |
| Headline | Severe Thunderstorm Warning issued August 8 at 7:21PM EDT until August 8 at 8:00PM EDT by NWS Boston/Norton MA |
| Expires | 2026-08-08T20:00:00-04:00 |
| SenderName | NWS Boston/Norton MA |
| HasExactCoords | true |
| Google News RssFeed | weather |
| Google News SourceName | Boston 25 News |
| MergedSources | [{"id":"gnews_weather_496173_161","source":"google_news","severity":"medium","severityValue":40,"timestamp":1786222825000,"latitude":42.36,"longitude":-71.06},{"id":"gnews_weather_496170_162","source":"google_news","severity":"medium","severityValue":40,"timestamp":1786213351000,"latitude":42.36,"longitude":-71.06},{"id":"gnews_weather_496173_163","source":"google_news","severity":"medium","severityValue":40,"timestamp":1786226094000,"latitude":42.36,"longitude":-71.06}] |
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 Gloucester?
Calamity.live data shows a weather event with CalamityScore 52/100, near Gloucester (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.