This alert expired on 3 July 2026 at 19:30 UTC. It is kept here as a record.
No stronger detection stands among the 49 recorded within 20 km of this point since 31 March 2026 — 11 others scored the same. The last comparable one was on 20 June 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 3 at 2:44PM EDT until July 3 at 3:30PM EDT by NWS State College PA
An estimated 30,075 people live within 50 km of this point.
Nearby, since 31 March 2026
- May 13, 2026 · score 34 · 9.4 km
- July 6, 2026 · score 34 · 13.6 km
- July 28, 2026 · score 22 · 17.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 79 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 79% |
| Coordinates | 41.7633, -78.8577 |
| Nearest City | Jamestown (49 km) |
| Population Exposed | 30.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T18:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.035f2c10536fd003d222b8682cc69168 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | McKean, PA; Potter, PA; Forest, PA; Venango, PA |
| Headline | Severe Thunderstorm Warning issued July 3 at 2:44PM EDT until July 3 at 3:30PM EDT by NWS State College PA |
| Expires | 2026-07-03T15:30:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.035f2c10536fd003d222b8682cc69168779230bc.001.1","noaa_urn:oid:2.49.0.1.840.0.3be952b3107040922166168521be7f9a43cb900e.001.1"] |
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 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 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.