This alert expired on 18 July 2026 at 22:30 UTC. It is kept here as a record.
No stronger detection stands among the 13 recorded within 20 km of this point since 17 March 2026 — one other scored the same. The last comparable one was on 11 July 2026. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued July 18 at 6:04PM EDT until July 18 at 6:30PM EDT by NWS State College PA
Nearby, since 17 March 2026
- August 10, 2026 · score 22 · 15.8 km
- July 11, 2026 · score 22 · 24.1 km
- July 11, 2026 · score 22 · 24.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 59 % 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) | 46 / 100 |
| Our confidence | 59% |
| Coordinates | 41.5313, -78.0087 |
| Nearest City | State College (83 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-18T22:04:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.6993cbaef73f11a4f3e3cd18c5e6576a13b90f8b.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cameron, PA; Clinton, PA; Potter, PA |
| Headline | Tornado Warning issued July 18 at 6:04PM EDT until July 18 at 6:30PM EDT by NWS State College PA |
| Expires | 2026-07-18T18:30:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
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 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.