This alert expired on 2 July 2026 at 03:30 UTC. It is kept here as a record.
It is the 4th strongest of the 23 detections recorded within 20 km of this point since 1 April 2026. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 1 at 11:19PM EDT until July 1 at 11:30PM EDT by NWS Boston/Norton MA
Nearby, since 1 April 2026
- July 2, 2026 · score 43 · 14.5 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 69 % 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) | 22 / 100 |
| Our confidence | 69% |
| Coordinates | 42.9466, -73.0088 |
| Nearest City | Greenfield (52 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-02T03:19:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Franklin, MA; Hampden, MA; Hampshire, MA; Worcester, MA; Addison, VT; Caledonia, VT; Chittenden, VT; Essex, VT; Lamoille, VT; Orange, VT; Rutland, VT; Washington, VT; Windsor, VT; Dutchess, NY; Ulster, NY and 5 more areas |
| Headline | Severe Thunderstorm Warning issued July 1 at 11:19PM EDT until July 1 at 11:30PM EDT by NWS Boston/Norton MA |
| Expires | 2026-07-01T23:30:00-04:00 |
| SenderName | NWS Boston/Norton MA |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.50c47d79d9d85d4e617978a830f79982e9837848.001.1","noaa_urn:oid:2.49.0.1.840.0.0a7180296ea4967de065c176a5b8a7c7139c9de7.001.1","noaa_urn:oid:2.49.0.1.840.0.cc3daaef9b7cefc730dae0d61719078a1ab230ee.001.1","noaa_urn:oid:2.49.0.1.840.0.de7d78beb566014b84ca73f757d6a63bbfece1bd.002.1","noaa_urn:oid:2.49.0.1.840.0.8320928a78240a758aab2bb1355cdc0b87f36405.001.1","noaa_urn:oid:2.49.0.1.840.0.b6eb2fe8606a84b8ccfa109ba08fe108c2df76db.001.1","noaa_urn:oid:2.49.0.1.840.0.20883a066a04f831b41005e174d0d285d51f5bef.001.1","noaa_urn:oid:2.49.0.1.840.0.bb994f7560af56983bf27b7bbf87ef9e5077248f.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 WSW Niskayuna |
| Iem County | Schenectady |
| Iem State | NY |
| Iem Wfo | ALY |
| Iem Remark | Several trees down within the Schenectady area. Time estimated from radar. |
| MergedSources | [{"id":"iem_H_42.840_-73.810_1782946200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782946200000,"latitude":42.84,"longitude":-73.81},{"id":"iem_D_42.550_-73.370_1782958980000","source":"iem","severity":"low","severityValue":25,"timestamp":1782958980000,"latitude":42.55,"longitude":-73.37},{"id":"iem_D_42.780_-73.710_1782957180000","source":"iem","severity":"low","severityValue":25,"timestamp":1782957180000,"latitude":42.78,"longitude":-73.71},{"id":"iem_D_42.830_-73.640_1782957420000","source":"iem","severity":"low","severityValue":25,"timestamp":1782957420000,"latitude":42.83,"longitude":-73.64},{"id":"iem_D_42.810_-73.910_1782956520000","source":"iem","severity":"low","severityValue":25,"timestamp":1782956520000,"latitude":42.81,"longitude":-73.91}] |
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 22/100, near Greenfield (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.