Right now
The most recent data we hold from NOAA arrived 3 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 18 June 2026 at 23:00 UTC. It is kept here as a record.
It is the strongest of the 98 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 12 June 2026. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Watch issued June 18 at 3:43PM EDT until June 18 at 7:00PM EDT by NWS Boston/Norton MA
An estimated 1,682,010 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 28, 2026 · score 58 · 0.0 km
- August 27, 2026 · score 58 · 0.0 km
- August 11, 2026 · score 58 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 64 out of 100, at 79 % 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) | 64 / 100 |
| Our confidence | 79% |
| Coordinates | 41.6000, -72.7000 |
| Nearest City | Middletown (6 km) |
| Population Exposed | 1.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-18T19:43:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.6a0de2f976a70ff49dd532678d813327e30bbd3b.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Hartford, CT; Tolland, CT; Windham, CT; Essex, MA; Franklin, MA; Hampden, MA; Hampshire, MA; Middlesex, MA; Worcester, MA |
| Headline | Tornado Watch issued June 18 at 3:43PM EDT until June 18 at 7:00PM EDT by NWS Boston/Norton MA |
| Expires | 2026-06-18T19:00:00-04:00 |
| SenderName | NWS Boston/Norton MA |
| HasExactCoords | false |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 Middletown?
Calamity.live data shows a weather event with CalamityScore 64/100, near Middletown (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.