This alert expired on 8 August 2026 at 22:45 UTC. It is kept here as a record.
No stronger detection stands among the 91 recorded within 20 km of this point since 16 March 2026 — 2 others scored the same. Another comparable one was recorded here earlier the same day. 72 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 8 at 5:43PM EDT until August 8 at 6:45PM EDT by NWS Boston/Norton MA
An estimated 1,151,857 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 3, 2026 · score 48 · 10.7 km
- August 8, 2026 · score 52 · 16.3 km
How we know
Confirmed by 8 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.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 90% |
| Coordinates | 42.1237, -72.6250 |
| Nearest City | West Springfield (2 km) |
| Population Exposed | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-08T21:43:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f5fc5953ecea26f8bdba8ece0f66018b |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Hartford, CT; Tolland, CT; Franklin, MA; Hampden, MA; Hampshire, MA; Worcester, MA; Hampden, MA; Hampshire, MA; Hartford, CT; Hampden, MA |
| Headline | Severe Thunderstorm Warning issued August 8 at 5:43PM EDT until August 8 at 6:45PM EDT by NWS Boston/Norton MA |
| Expires | 2026-08-08T18:45:00-04:00 |
| SenderName | NWS Boston/Norton MA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f5fc5953ecea26f8bdba8ece0f66018bd841ebae.001.1","noaa_urn:oid:2.49.0.1.840.0.e7b2c637187ddb203ddd216ff0469f699dc99024.001.1","noaa_urn:oid:2.49.0.1.840.0.3a6d481bb1bb021f5db9550c7c000f6cb49a3990.002.1"] |
| Iem TypeSummary | D |
| Iem City | 1 SW Lenox |
| Iem County | Berkshire |
| Iem State | MA |
| Iem Wfo | ALY |
| Iem Remark | Report of tree down blocking road on Hawthorne Rd in Lenox, MA. |
| MergedSources | [{"id":"iem_D_42.340_-73.280_1786220940000","source":"iem","severity":"low","severityValue":25,"timestamp":1786220940000,"latitude":42.34,"longitude":-73.28},{"id":"iem_D_42.320_-73.270_1786221060000","source":"iem","severity":"low","severityValue":25,"timestamp":1786221060000,"latitude":42.32,"longitude":-73.27},{"id":"iem_D_42.300_-73.240_1786221420000","source":"iem","severity":"low","severityValue":25,"timestamp":1786221420000,"latitude":42.3,"longitude":-73.24},{"id":"iem_D_42.330_-73.230_1786221240000","source":"iem","severity":"low","severityValue":25,"timestamp":1786221240000,"latitude":42.33,"longitude":-73.23},{"id":"iem_D_42.310_-73.230_1786221300000","source":"iem","severity":"low","severityValue":25,"timestamp":1786221300000,"latitude":42.31,"longitude":-73.23},{"id":"iem_D_42.140_-73.070_1786223160000","source":"iem","severity":"low","severityValue":25,"timestamp":1786223160000,"latitude":42.14,"longitude":-73.07},{"id":"iem_D_42.350_-73.300_1786220820000","source":"iem","severity":"low","severityValue":25,"timestamp":1786220820000,"latitude":42.35,"longitude":-73.3}] |
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 52/100, near West Springfield (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.