Right now
The most recent data we hold from NOAA arrived 2 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 12 June 2026 at 22:15 UTC. It is kept here as a record.
It is the 48th strongest of the 201 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 12 at 5:37PM EDT until June 12 at 6:15PM EDT by NWS Baltimore MD/Washington DC
Urban PEI: 145,042 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- August 28, 2026 · score 43 · 5.1 km
- June 12, 2026 · score 43 · 11.9 km
- September 2, 2026 · score 37 · 14.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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) | 43 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 38.1834, -78.5094 |
| Nearest City | Charlottesville (17 km) |
| Urban exposure index (PEI) | 145.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-12T21:37:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.461448a0e723ed9df9acfc10dd4388fc |
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: 2026-06-12T21:37:00.000Z.
First archived: 2026-06-12T21:39:17.713Z. 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 | Albemarle, VA; Augusta, VA; Nelson, VA; Rockingham, VA; City of Staunton, VA; City of Waynesboro, VA; Page, VA; Shenandoah, VA; Warren, VA; Calvert, MD and 8 more areas |
| Headline | Severe Thunderstorm Warning issued June 12 at 5:37PM EDT until June 12 at 6:15PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-06-12T18:15:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.461448a0e723ed9df9acfc10dd4388fcd9526d19.001.1","noaa_urn:oid:2.49.0.1.840.0.ad922f2ba169cda0f34e3ce1d89b74976fc75352.001.1","noaa_urn:oid:2.49.0.1.840.0.c38a1d8986b320672c4825dd86a7cf597f10556c.002.1","noaa_urn:oid:2.49.0.1.840.0.12d9c3e4acce63852937571865cc736895575e67.001.1","noaa_urn:oid:2.49.0.1.840.0.c8bcee1cb060ea2f21ba860ef8cc7da5cb0e1030.001.1","noaa_urn:oid:2.49.0.1.840.0.2083e374545e2327614ddc67af6b92ab2af5bd21.001.1","noaa_urn:oid:2.49.0.1.840.0.b401617ecd8831b3bd542d18d0c39878a4717306.002.1","noaa_urn:oid:2.49.0.1.840.0.791d8a957d007fa614899843b0d5a69336fa01ea.002.1","noaa_urn:oid:2.49.0.1.840.0.c882ea496375f4117a0ac2574818199b731f540c.001.1","noaa_urn:oid:2.49.0.1.840.0.3ae98f8d384ab0da78e488c610536a43d6c481af.001.1","noaa_urn:oid:2.49.0.1.840.0.46773b15f83683fa583e53c7bdede33aa1be7566.001.1"] |
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.
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