This alert expired on 2 September 2026 at 00:22 UTC. It is kept here as a record.
It is the 23rd strongest of the 47 detections recorded within 20 km of this point since 11 June 2026. The last comparable one was on 1 September 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 1 at 8:12PM EDT until September 1 at 8:15PM EDT by NWS State College PA
Nearby, since 11 June 2026
- September 1, 2026 · score 16 · 14.5 km
- June 14, 2026 · score 46 · 16.5 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 16 out of 100, at 65 % 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) | 16 / 100 |
| Our confidence | 65% |
| Coordinates | 41.4945, -78.6691 |
| Nearest City | Jamestown (82 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-02T00:12:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a5cf9860b2d27f7daeae21c65a2ffed15eded623.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Elk, PA; McKean, PA |
| Headline | Severe Thunderstorm Warning issued September 1 at 8:12PM EDT until September 1 at 8:15PM EDT by NWS State College PA |
| Expires | 2026-09-01T20:22:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | W Kane |
| Spc County | McKean |
| Spc State | PA |
| Spc Comments | Tree down with wires in the 500 block of Park Avenue. (CTP) |
| MergedSources | [{"id":"spc_wind_41.63_-79.55_20","source":"spc","severity":"medium","severityValue":45,"timestamp":1788307849089,"latitude":41.63,"longitude":-79.55},{"id":"spc_wind_41.71_-79.35_25","source":"spc","severity":"medium","severityValue":45,"timestamp":1788307849089,"latitude":41.71,"longitude":-79.35},{"id":"spc_wind_41.72_-78.97_26","source":"spc","severity":"medium","severityValue":45,"timestamp":1788307849089,"latitude":41.72,"longitude":-78.97},{"id":"spc_wind_41.66_-78.82_27","source":"spc","severity":"medium","severityValue":45,"timestamp":1788307849089,"latitude":41.66,"longitude":-78.82}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.