Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 19 July 2026 at 01:30 UTC. It is kept here as a record.
It is the 5th strongest of the 14 detections recorded within 20 km of this point since 6 June 2026. The last comparable one was on 7 July 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 18 at 8:43PM EDT until July 18 at 9:30PM EDT by NWS State College PA
Urban PEI: 87,505 within a heuristic 50 km radius; not unique people.
Nearby, since 6 June 2026
- September 2, 2026 · score 32 · 5.8 km
- July 19, 2026 · score 63 · 10.6 km
- July 7, 2026 · score 39 · 16.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 39 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 40.4792, -77.8908 |
| Nearest City | State College (35 km) |
| Urban exposure index (PEI) | 87.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-19T00:43:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.3cead1d3bbe7da322892761dcd273412782f1e6c.001.1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-19T00:43:00.000Z.
First archived: 2026-07-19T01:02:22.436Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Blair, PA; Huntingdon, PA; Juniata, PA; Mifflin, PA |
| Headline | Severe Thunderstorm Warning issued July 18 at 8:43PM EDT until July 18 at 9:30PM EDT by NWS State College PA |
| Expires | 2026-07-18T21:30:00-04:00 |
| 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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