Right now
The most recent data we hold from NOAA arrived 7 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 18 July 2026 at 19:00 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 18 at 2:24PM EDT until July 18 at 3:00PM EDT by NWS Baltimore MD/Washington DC
Urban PEI: 46,597 within a heuristic 50 km radius; not unique people.
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 28 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) | 28 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 37.6093, -78.3153 |
| Nearest City | Charlottesville (49 km) |
| Urban exposure index (PEI) | 46.6K within 50 km |
| Impact Tier | significant |
| Date | 2026-07-18, time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.61a11af7b66c43d8d4508e257b958bda |
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: 2026-07-18, time not reported.
First archived: 2026-07-18T18:24:56.095Z. 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; Greene, VA; Madison, VA; Orange, VA; City of Charlottesville, VA; Granville, NC; Durham, NC; Granville, NC and 5 more areas |
| Headline | Severe Thunderstorm Warning issued July 18 at 2:24PM EDT until July 18 at 3:00PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-07-18T15:00:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.61a11af7b66c43d8d4508e257b958bda2d4d002b.001.1","noaa_urn:oid:2.49.0.1.840.0.65ee1c5e8806a9f8d3822b98e9cf9c2726488a44.001.1","noaa_urn:oid:2.49.0.1.840.0.4dc239b33bdab95922aaff164ace88b9073cffe5.001.1","noaa_urn:oid:2.49.0.1.840.0.18554956d98ef31b80a3b4e18bc4093aeabd479a.001.1","noaa_urn:oid:2.49.0.1.840.0.342aadd53a58f384783bba223f55887a6b610efb.001.1","noaa_urn:oid:2.49.0.1.840.0.103ab6d3237638531ce5a8ae8a2f3851cd360fef.001.1","noaa_urn:oid:2.49.0.1.840.0.1796f09b4d847fe1555df348bdd508286897fb64.002.1","noaa_urn:oid:2.49.0.1.840.0.61bd6655141e99d26ee45abbf003a5dc397aed94.001.1"] |
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.
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