This alert expired on 3 September 2026 at 05:30 UTC. It is kept here as a record.
It is the 83rd strongest of the 124 detections recorded within 20 km of this point since 11 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 3 at 1:07AM EDT until September 3 at 1:30AM EDT by NWS State College PA
An estimated 29,201 people live within 50 km of this point.
Nearby, since 11 March 2026
- March 17, 2026 · score 34 · 13.2 km
- September 2, 2026 · score 46 · 20.5 km
- August 28, 2026 · score 28 · 20.5 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 28 out of 100, at 93 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 93% |
| Coordinates | 41.2618, -77.4309 |
| Nearest City | Williamsport (36 km) |
| Population Exposed | 29.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T05:07:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.276a655427a02c265f316e52d8d1257c141491f4.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Centre, PA; Clinton, PA; Lycoming, PA; Sullivan, PA |
| Headline | Severe Thunderstorm Warning issued September 3 at 1:07AM EDT until September 3 at 1:30AM EDT by NWS State College PA |
| Expires | 2026-09-03T01:30:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 5 N Denton Hill State P |
| Spc County | Potter |
| Spc State | PA |
| Spc Comments | Tree down partially blocking South Brookland Road. Likely associated with the outflow boundary out ahead of the line of storms. (CTP) |
| Iem TypeSummary | D |
| Iem City | 3 NNE Hyner |
| Iem County | Clinton |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Tree down near the intersection of Hyner Run road and Kramer Lane. |
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 8 March 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 28/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.