This alert expired on 6 July 2026 at 00:45 UTC. It is kept here as a record.
It is the strongest of the 37 detections recorded within 20 km of this point since 6 June 2026. The last comparable one was on 4 July 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued July 5 at 8:10PM EDT until July 5 at 8:45PM EDT by NWS State College PA
An estimated 61,123 people live within 50 km of this point.
Nearby, since 6 June 2026
- August 28, 2026 · score 39 · 2.9 km
- August 27, 2026 · score 39 · 2.9 km
- June 6, 2026 · score 34 · 25.3 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 63 out of 100, at 88 % 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 | 88% |
| Coordinates | 40.0371, -77.8229 |
| Nearest City | Chambersburg (18 km) |
| Population Exposed | 61.1K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-07-06T00:10:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.aececae5d2e160d663f986d5624edd48c57d2081.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Franklin, PA |
| Headline | Tornado Warning issued July 5 at 8:10PM EDT until July 5 at 8:45PM EDT by NWS State College PA |
| Expires | 2026-07-05T20:45:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 3 WSW Lewistown |
| Iem County | Mifflin |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Tree down blocking Big Ridge Rd. |
| MergedSources | [{"id":"iem_D_40.580_-77.420_1783288200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783288200000,"latitude":40.58,"longitude":-77.42},{"id":"iem_F_40.540_-77.360_1783292820000","source":"iem","severity":"low","severityValue":25,"timestamp":1783292820000,"latitude":40.54,"longitude":-77.36},{"id":"iem_D_40.350_-77.290_1783290240000","source":"iem","severity":"low","severityValue":25,"timestamp":1783290240000,"latitude":40.35,"longitude":-77.29},{"id":"iem_D_40.590_-77.630_1783287720000","source":"iem","severity":"low","severityValue":25,"timestamp":1783287720000,"latitude":40.59,"longitude":-77.63}] |
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.
Calamity.live data shows a weather event with CalamityScore 63/100, near Chambersburg (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.