Right now
The most recent data we hold from NOAA arrived 51 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 21 July 2026 at 18:45 UTC. It is kept here as a record.
It is the 50th strongest of the 125 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 21 at 2:10PM EDT until July 21 at 2:45PM EDT by NWS Wakefield VA
Urban PEI: 68,088 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- July 21, 2026 · score 39 · 0.0 km
- May 27, 2026 · score 39 · 9.8 km
- May 28, 2026 · score 39 · 10.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 32 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) | 32 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 37.7886, -78.5440 |
| Nearest City | Charlottesville (27 km) |
| Urban exposure index (PEI) | 68.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-21T18:10:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.c93783301c58a11dea7fdb7de48d3ff4 |
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: 2026-07-21T18:10:00.000Z.
First archived: 2026-07-21T18:12:26.159Z. 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 | Caroline, VA; Hanover, VA; Louisa, VA; Albemarle, VA; Nelson, VA; City of Charlottesville, VA; Amherst, VA; Rockbridge, VA and 1 more areas |
| Headline | Severe Thunderstorm Warning issued July 21 at 2:10PM EDT until July 21 at 2:45PM EDT by NWS Wakefield VA |
| Expires | 2026-07-21T14:45:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c93783301c58a11dea7fdb7de48d3ff4d0d75d47.001.1","noaa_urn:oid:2.49.0.1.840.0.d417e0daca7fa417de0e8777026aff83090857e2.001.1","noaa_urn:oid:2.49.0.1.840.0.7a2eef251661bbbd372109adef4e519e5aaef03b.001.1","noaa_urn:oid:2.49.0.1.840.0.9667977a58c5dab696c3ce582681586be33e37ba.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 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.
Want to know when something happens near Charlottesville?