Right now
The most recent data we hold from NOAA arrived 15 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 28 July 2026 at 22:00 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 28 at 5:32PM EDT until July 28 at 6:00PM EDT by NWS Blacksburg VA
Urban PEI: 93,110 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 39 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) | 39 / 100 |
| Legacy data-support index | 0.79/1 |
| Coordinates | 36.0922, -81.6367 |
| Nearest City | Boone (15 km) |
| Urban exposure index (PEI) | 93.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-28T21:32:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.af9fd627a8e99359fbb4e1eddbcdd3b4 |
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: 2026-07-28T21:32:00.000Z.
First archived: 2026-07-28T21:41:02.992Z. 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 | Rockingham, NC; Ashe, NC; Watauga, NC; Wilkes, NC; Iredell, NC; Rowan, NC and 4 more areas |
| Headline | Severe Thunderstorm Warning issued July 28 at 5:32PM EDT until July 28 at 6:00PM EDT by NWS Blacksburg VA |
| Expires | 2026-07-28T18:00:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.af9fd627a8e99359fbb4e1eddbcdd3b4489998d2.002.1","noaa_urn:oid:2.49.0.1.840.0.7856b1554102e5ff6172362ae5fe0f1313a53e9a.001.1","noaa_urn:oid:2.49.0.1.840.0.4e7ceff680e1aa920db173aca476b833ef9d20c4.001.1","noaa_urn:oid:2.49.0.1.840.0.30a075c0c35619c2b9c76370b8984b9290c813bf.001.1","noaa_urn:oid:2.49.0.1.840.0.51d77865bf855832132635f5d5e03a994e95f037.001.1","noaa_urn:oid:2.49.0.1.840.0.27b2024e22f54dd03b383282997d0446ec130da8.001.1","noaa_urn:oid:2.49.0.1.840.0.a299986584f57adbeb7d6032c3d5fdc7473855ca.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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