Right now
The most recent data we hold from NOAA arrived 4 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 4 July 2026 at 04:17 UTC. It is kept here as a record.
It is the 14th strongest of the 65 detections recorded within 20 km of this point since 16 April 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 4 at 12:07AM EDT until July 4 at 12:15AM EDT by NWS Pittsburgh PA
Nearby, since 16 April 2026
- June 14, 2026 · score 46 · 6.1 km
- September 1, 2026 · score 16 · 13.3 km
- June 14, 2026 · score 46 · 17.5 km
How we know
14 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 41.3661, -78.6807 |
| Nearest City | Jamestown (94 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-04T04:07:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.70bd82481f28f0bf71a23de1dc2ddf88 |
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: 2026-07-04T04:07:00.000Z.
First archived: 2026-07-04T04:10:56.875Z. 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 | Forest, PA; Jefferson, PA; Cameron, PA; Centre, PA; Clearfield, PA; Clinton, PA; Elk, PA; Clearfield, PA; Elk, PA |
| Headline | Severe Thunderstorm Warning issued July 4 at 12:07AM EDT until July 4 at 12:15AM EDT by NWS Pittsburgh PA |
| Expires | 2026-07-04T00:17:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.70bd82481f28f0bf71a23de1dc2ddf88cf7b6aab.001.1","noaa_urn:oid:2.49.0.1.840.0.52501b1a678e49fc99eaa0c0dc5aec50e52f2440.001.1","noaa_urn:oid:2.49.0.1.840.0.358c690e2e540702eba77e21737b726ecc3b33ce.001.1"] |
| Iem TypeSummary | D |
| Iem City | 4 SSW Reynoldsville |
| Iem County | Jefferson |
| Iem State | PA |
| Iem Wfo | PBZ |
| Iem Remark | TREE BLOCKING THE ROAD and CABLE LINE ALONG SIDE OF THE ROAD. Report near 107 GENO LN, Winslow. Time based on radar estimate. |
| MergedSources | [{"id":"iem_D_40.980_-78.150_1783131300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783131300000,"latitude":40.98,"longitude":-78.15},{"id":"iem_D_41.100_-78.160_1783131000000","source":"iem","severity":"low","severityValue":25,"timestamp":1783131000000,"latitude":41.1,"longitude":-78.16},{"id":"iem_D_40.850_-78.720_1783128600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783128600000,"latitude":40.85,"longitude":-78.72},{"id":"iem_D_40.970_-79.090_1783127640000","source":"iem","severity":"low","severityValue":25,"timestamp":1783127640000,"latitude":40.97,"longitude":-79.09},{"id":"iem_D_40.890_-78.240_1783132680000","source":"iem","severity":"low","severityValue":25,"timestamp":1783132680000,"latitude":40.89,"longitude":-78.24},{"id":"iem_G_41.050_-78.420_1783130580000","source":"iem","severity":"low","severityValue":25,"timestamp":1783130580000,"latitude":41.05,"longitude":-78.42},{"id":"iem_D_40.900_-78.710_1783128900000","source":"iem","severity":"low","severityValue":25,"timestamp":1783128900000,"latitude":40.9,"longitude":-78.71},{"id":"iem_D_41.280_-79.460_1783124160000","source":"iem","severity":"low","severityValue":25,"timestamp":1783124160000,"latitude":41.28,"longitude":-79.46},{"id":"iem_D_41.160_-78.720_1783129200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783129200000,"latitude":41.16,"longitude":-78.72},{"id":"iem_D_40.980_-78.200_1783130700000","source":"iem","severity":"low","severityValue":25,"timestamp":1783130700000,"latitude":40.98,"longitude":-78.2},{"id":"iem_D_41.120_-79.200_1783125780000","source":"iem","severity":"low","severityValue":25,"timestamp":1783125780000,"latitude":41.12,"longitude":-79.2},{"id":"iem_D_41.030_-78.460_1783129500000","source":"iem","severity":"low","severityValue":25,"timestamp":1783129500000,"latitude":41.03,"longitude":-78.46},{"id":"iem_D_41.040_-78.910_1783127820000","source":"iem","severity":"low","severityValue":25,"timestamp":1783127820000,"latitude":41.04,"longitude":-78.91}] |
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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