This alert expired on 4 July 2026 at 23:30 UTC. It is kept here as a record.
It is the 3rd strongest of the 120 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 4 at 6:44PM EDT until July 4 at 7:30PM EDT by NWS Albany NY
An estimated 198,191 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 6, 2026 · score 43 · 1.9 km
- June 11, 2026 · score 37 · 6.1 km
- August 7, 2026 · score 43 · 6.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 79 % 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) | 43 / 100 |
| Our confidence | 79% |
| Coordinates | 40.2154, -76.7409 |
| Nearest City | Harrisburg (13 km) |
| Population Exposed | 198.2K within 50 km |
| Impact Tier | significant |
| Date | 2026-07-04 — time not reported by the source |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Litchfield, CT; Berkshire, MA; Columbia, NY; Dutchess, NY; Delaware, NY; Sullivan, NY; Sullivan, NY and 26 more areas |
| Headline | Severe Thunderstorm Warning issued July 4 at 6:44PM EDT until July 4 at 7:30PM EDT by NWS Albany NY |
| Expires | 2026-07-04T19:30:00-04:00 |
| SenderName | NWS Albany NY |
| HasExactCoords | true |
| MergedCount | 29 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ec681db4cdeecc21f249f4c14d14bc514f62674e.001.1","noaa_urn:oid:2.49.0.1.840.0.3462a58b6a7855c172ef2c1007072a90039d9f41.001.1","noaa_urn:oid:2.49.0.1.840.0.51aae8e3bfa1d01854dd188aae7f5b7605b6fccb.001.1","noaa_urn:oid:2.49.0.1.840.0.cad0916b02bb741a443e874be7debf095d0e7d19.001.1","noaa_urn:oid:2.49.0.1.840.0.0122134260b6b06ebfd8e0717b92fed562930178.002.1","noaa_urn:oid:2.49.0.1.840.0.8965e457961daee2c375871d4093e5eacde13d0b.001.1","noaa_urn:oid:2.49.0.1.840.0.ae9ff84f835d507604b117975c5e30853ef55bac.002.1","noaa_urn:oid:2.49.0.1.840.0.737bb966f57c8144bd10cbc6cf9dd26128f63bec.001.1","noaa_urn:oid:2.49.0.1.840.0.54be9178ee66d52b2cedda8c70f7c1dc12ff5cd4.001.1","noaa_urn:oid:2.49.0.1.840.0.4f76bc49036fa7bd637023c4c4dfafa7e8b4c835.001.1","noaa_urn:oid:2.49.0.1.840.0.691c23b708b67fed027bdfc9b4f7b7824b15f7aa.001.1","noaa_urn:oid:2.49.0.1.840.0.87cb78cb7ad62946ca44a30ce6c90a08f44c049d.002.1","noaa_urn:oid:2.49.0.1.840.0.f38f8e312727aadc9fc8e6c95247319757addcf7.001.1","noaa_urn:oid:2.49.0.1.840.0.e04f0b5a47880ff555b81f4ca2c4154fe82d4a7e.001.1","noaa_urn:oid:2.49.0.1.840.0.64cb25bcd0223e056c32b753608ce73c2b416e8f.001.1","noaa_urn:oid:2.49.0.1.840.0.0b0cca37919c85c1b0033505140e2fa1a0f34d64.001.1","noaa_urn:oid:2.49.0.1.840.0.3943f64e4da999d5dbcf8edc10f6a1524d16f2ae.001.1","noaa_urn:oid:2.49.0.1.840.0.8fddeb9116067e650553fde6c70ee084f54605de.001.1","noaa_urn:oid:2.49.0.1.840.0.e97ae3c1ebd0e3d1ec4933d309bd1591cf4042d0.001.1","noaa_urn:oid:2.49.0.1.840.0.b28ac9b9f0a4582370efec53a09bf74ca6e02ed5.001.1","noaa_urn:oid:2.49.0.1.840.0.bf6ab17645b2d58cabe21b4db1bde6f5ff5e21fe.001.1","noaa_urn:oid:2.49.0.1.840.0.3cf416c37f07dcea3c856b29d77dcc8e2c9141ef.001.1","noaa_urn:oid:2.49.0.1.840.0.c97ce057487cd3978dd328049df138475344a24c.001.1","noaa_urn:oid:2.49.0.1.840.0.287fec160dfbb6dc1ff0b893ae38e9154c67b5b9.002.1","noaa_urn:oid:2.49.0.1.840.0.0c7e954421f27d0f9d1c623877f99ed8ca3244df.001.1","noaa_urn:oid:2.49.0.1.840.0.ac1e2141d184c3c1d1bc9179b55c0ae8866c5045.001.1","noaa_urn:oid:2.49.0.1.840.0.f45f276329f77333a63db1cba37bfea8f30cb702.001.1","noaa_urn:oid:2.49.0.1.840.0.d46ab000e827c8b3518eb05b98a7e14ae69ec134.001.1","noaa_urn:oid:2.49.0.1.840.0.8196109d015fda27bc14a9c5cf9dc147f634d6be.002.1"] |
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 43/100, near Harrisburg (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.