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.
This alert expired on 7 August 2026 at 18:45 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 7 at 2:01PM EDT until August 7 at 2:45PM EDT by NWS State College PA
Urban PEI: 138,852 within a heuristic 50 km radius; not unique people.
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 37 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) | 37 / 100 |
| Legacy data-support index | 0.85/1 |
| Coordinates | 40.3550, -76.9492 |
| Nearest City | Harrisburg (11 km) |
| Urban exposure index (PEI) | 138.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T18:01:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d29cc0a3a5588fde9a64fdb5ff2d8fbf |
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: 2026-08-07T18:01:00.000Z.
First archived: 2026-08-07T18:04:20.087Z. 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 | Cumberland, PA; Franklin, PA; Luzerne, PA; Lancaster, PA; York, PA and 2 more areas |
| Headline | Severe Thunderstorm Warning issued August 7 at 2:01PM EDT until August 7 at 2:45PM EDT by NWS State College PA |
| Expires | 2026-08-07T14:45:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d29cc0a3a5588fde9a64fdb5ff2d8fbfaadd1d4b.001.1","noaa_urn:oid:2.49.0.1.840.0.ad5f384cb801739cb4a17dc9e4d5ba7dd6496f88.001.1","noaa_urn:oid:2.49.0.1.840.0.d47d4e86842385fffd06c6e6950633801a9bb4a4.001.1","noaa_urn:oid:2.49.0.1.840.0.f394d282355d856b6082bdf9d801f4f8e2eeaefa.001.1","noaa_urn:oid:2.49.0.1.840.0.414253d8fe3d5af3ed97c9afab9d3eed09888571.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 S Port Royal |
| Iem County | Juniata |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Tree and wires down at intersection of PA-75 and PA-333. |
| MergedSources | [{"id":"iem_D_40.530_-77.390_1786120380000","source":"iem","severity":"low","severityValue":25,"timestamp":1786120380000,"latitude":40.53,"longitude":-77.39}] |
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.
Review the area, threshold and delivery channel in your account.
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