This alert expired on 11 June 2026 at 20:15 UTC. It is kept here as a record.
It is the 7th strongest of the 47 detections recorded within 20 km of this point since 19 May 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 11 at 4:08PM EDT until June 11 at 4:15PM EDT by NWS Albany NY
An estimated 1,938,644 people live within 50 km of this point.
Nearby, since 19 May 2026
- August 8, 2026 · score 52 · 3.8 km
- June 12, 2026 · score 52 · 8.1 km
- August 3, 2026 · score 46 · 13.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 80 % 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) | 46 / 100 |
| Our confidence | 80% |
| Coordinates | 41.5763, -73.0559 |
| Nearest City | Waterbury (2 km) |
| Population Exposed | 1.9M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-11T20:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.01ab43a891f909f6aaf7af1754cd16c3 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Litchfield, CT; Fairfield, CT; Middlesex, CT; New Haven, CT |
| Headline | Severe Thunderstorm Warning issued June 11 at 4:08PM EDT until June 11 at 4:15PM EDT by NWS Albany NY |
| Expires | 2026-06-11T16:15:00-04:00 |
| SenderName | NWS Albany NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.01ab43a891f909f6aaf7af1754cd16c3b6d41490.001.1","noaa_urn:oid:2.49.0.1.840.0.2f7e7267a120dbbf8bba8103046763aef8053aa2.001.1"] |
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 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.
Calamity.live data shows a weather event with CalamityScore 46/100, near Waterbury (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.