Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
2 other detections within 20 km in the last 24 hours, the nearest 14 km from here.
This alert expired on 10 September 2026 at 00:15 UTC. It is kept here as a record.
It is the 12th strongest of the 26 detections recorded within 20 km of this point since 13 May 2026. The last comparable one was on 3 September 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 9 at 7:33PM EDT until September 9 at 8:15PM EDT by NWS State College PA
Nearby, since 13 May 2026
- July 7, 2026 · score 22 · 19.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 60 % 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) | 16 / 100 |
| Our confidence | 60% |
| Coordinates | 41.8333, -77.4233 |
| Nearest City | Elmira (58 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-09T23:33:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.d448deed671f2c965320e06ed5483a8087b0bc73.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Tioga, PA |
| Headline | Severe Thunderstorm Warning issued September 9 at 7:33PM EDT until September 9 at 8:15PM EDT by NWS State College PA |
| Expires | 2026-09-09T20:15:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
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.
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