Right now
The most recent data we hold from NOAA arrived 52 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 22:00 UTC. It is kept here as a record.
It is the 6th strongest of the 42 detections recorded within 20 km of this point since 17 March 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 5:04PM EDT until July 4 at 6:00PM EDT by NWS Blacksburg VA
Urban PEI: 20,130 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- August 6, 2026 · score 39 · 19.7 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.84/1 |
| Coordinates | 39.5480, -78.5478 |
| Nearest City | Cumberland (21 km) |
| Urban exposure index (PEI) | 20.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T21:04:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.fc2340fa96cb8c01c566176f8f022bac |
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: 2026-07-04T21:04:00.000Z.
First archived: 2026-07-04T21:06:46.906Z. 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 | Amherst, VA; Appomattox, VA; Bedford, VA; Botetourt, VA; Buckingham, VA; Campbell, VA; Pittsylvania, VA; Rockbridge, VA; City of Buena Vista, VA; City of Lynchburg, VA; Culpeper, VA; Fauquier, VA; King George, VA; Orange, VA; Spotsylvania, VA; Stafford, VA; City of Fredericksburg, VA; Augusta, VA; City of Staunton, VA and 19 more areas |
| Headline | Severe Thunderstorm Warning issued July 4 at 5:04PM EDT until July 4 at 6:00PM EDT by NWS Blacksburg VA |
| Expires | 2026-07-04T18:00:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 22 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fc2340fa96cb8c01c566176f8f022bacb4e669e1.001.1","noaa_urn:oid:2.49.0.1.840.0.1dad7d91b072a3b7c3ab9ddca11149eca5c797c0.001.1","noaa_urn:oid:2.49.0.1.840.0.09286318d4960747764216d27de0fc2ba40b44b7.001.1","noaa_urn:oid:2.49.0.1.840.0.e7b8f1a53c54c1ed2592a7defa51dc1d84d71952.002.1","noaa_urn:oid:2.49.0.1.840.0.d26dbc287c131fc51a93c0c9877edafaac7a06ec.001.1","noaa_urn:oid:2.49.0.1.840.0.473f2b861aa8148349b7075cfe67882c7af3fc15.001.1","noaa_urn:oid:2.49.0.1.840.0.404bcc670116c5395eb62704ac2e1de9fd506c67.001.1","noaa_urn:oid:2.49.0.1.840.0.48c6d7fe9dfa5a4268bd7e09c70204d495bc3f1f.001.1","noaa_urn:oid:2.49.0.1.840.0.622442f15ab77d67bb47b47305efd1c60dab7b3c.001.1","noaa_urn:oid:2.49.0.1.840.0.52992595b8b353cdd8186042d5a6c047213e8766.001.1","noaa_urn:oid:2.49.0.1.840.0.63327ca64fade3fa86d8096e6540c407add0eaf2.002.1","noaa_urn:oid:2.49.0.1.840.0.5c746cea45f7f9617231218c39787ca17fe0e646.001.1","noaa_urn:oid:2.49.0.1.840.0.7c8501fdc43db42db5553cc0e44c22275a11259c.001.1","noaa_urn:oid:2.49.0.1.840.0.702a7a13bf2df18aaa28b57db00c0693a799106b.002.1","noaa_urn:oid:2.49.0.1.840.0.1498712bd04b56939e0c09c3a8a8e419887a688e.001.1","noaa_urn:oid:2.49.0.1.840.0.940463fcea8404c07d50d4b6c2114c301e771d4b.001.1","noaa_urn:oid:2.49.0.1.840.0.9ca3ed2fbc7c955ae3a6d26119c032715e64f354.002.1","noaa_urn:oid:2.49.0.1.840.0.bc80d05e20d9d1c08f105ff479c94a133ad566a2.001.1","noaa_urn:oid:2.49.0.1.840.0.6486039f68dfce277b54d6414ba548fa9cca8e72.001.1","noaa_urn:oid:2.49.0.1.840.0.55d1b4cb881de849e1f7d50f895e531c8e61b0a5.001.1","noaa_urn:oid:2.49.0.1.840.0.bf0a88d43050662384202d709021a40413600fcd.002.1","noaa_urn:oid:2.49.0.1.840.0.8c7baea6118f7450a83ba918a0fa2d5cd99bcf25.001.1"] |
| Iem TypeSummary | D |
| Iem City | 5 N Inglesmith |
| Iem County | Bedford |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Trees down on wires along Millers Corner Road. |
| MergedSources | [{"id":"iem_D_39.820_-78.430_1783197000000","source":"iem","severity":"low","severityValue":25,"timestamp":1783197000000,"latitude":39.82,"longitude":-78.43}] |
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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