This alert expired on 2 September 2026 at 00:04 UTC. It is kept here as a record.
No stronger detection stands among the 25 recorded within 20 km of this point since 17 March 2026 — one other scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Tornado Warning issued September 1 at 7:56PM EDT until September 1 at 8:00PM EDT by NWS State College PA
An estimated 96,954 people live within 50 km of this point.
Nearby, since 17 March 2026
- June 12, 2026 · score 32 · 12.9 km
- June 11, 2026 · score 37 · 19.1 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 63 out of 100, at 85 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | critical |
| Calamity Score (ours) | 63 / 100 |
| Our confidence | 85% |
| Coordinates | 41.3530, -76.4220 |
| Nearest City | Back Mountain (35 km) |
| Population Exposed | 97.0K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-09-01T23:56:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.6ad2bf68dd767aae1e0cf36d0361ba2930db7966.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Sullivan, PA |
| Headline | Tornado Warning issued September 1 at 7:56PM EDT until September 1 at 8:00PM EDT by NWS State College PA |
| Expires | 2026-09-01T20:04:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 1 WSW Nuangola |
| Spc County | Luzerne |
| Spc State | PA |
| Spc Comments | As per county dispatch... tree down on wires... involving Slocum Road. Radar-estimated time. (BGM) |
| MergedSources | [{"id":"spc_wind_41.20_-76.73_4","source":"spc","severity":"medium","severityValue":45,"timestamp":1788297180000,"latitude":41.2,"longitude":-76.73},{"id":"spc_wind_41.19_-76.66_5","source":"spc","severity":"medium","severityValue":45,"timestamp":1788297420000,"latitude":41.19,"longitude":-76.66},{"id":"spc_wind_40.96_-76.63_8","source":"spc","severity":"medium","severityValue":45,"timestamp":1788299400000,"latitude":40.96,"longitude":-76.63},{"id":"spc_wind_40.96_-76.62_9","source":"spc","severity":"medium","severityValue":45,"timestamp":1788299460000,"latitude":40.96,"longitude":-76.62},{"id":"spc_wind_41.00_-76.65_10","source":"spc","severity":"medium","severityValue":45,"timestamp":1788300060000,"latitude":41,"longitude":-76.65},{"id":"spc_wind_41.23_-76.14_11","source":"spc","severity":"medium","severityValue":45,"timestamp":1788300180000,"latitude":41.23,"longitude":-76.14},{"id":"spc_wind_41.15_-76.00_15","source":"spc","severity":"medium","severityValue":45,"timestamp":1788300600000,"latitude":41.15,"longitude":-76}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 63/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.