Right now
The most recent data we hold from NOAA arrived 4 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 28 July 2026 at 20:45 UTC. It is kept here as a record.
It is the 4th strongest of the 37 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 28 at 4:02PM EDT until July 28 at 4:45PM EDT by NWS Morristown TN
Nearby, since 16 March 2026
- July 4, 2026 · score 22 · 24.5 km
- June 14, 2026 · score 34 · 26.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 38.2495, -79.8081 |
| Nearest City | Staunton (65 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-28T20:02:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0920bd4ceb93ebfe2ff365adfa0c8316 |
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: 2026-07-28T20:02:00.000Z.
First archived: 2026-07-28T20:03:47.686Z. 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 | Wise, VA; City of Norton, VA; Knott, KY; Letcher, KY; Bland, VA; Carroll, VA; Grayson, VA; Wythe, VA and 11 more areas |
| Headline | Severe Thunderstorm Warning issued July 28 at 4:02PM EDT until July 28 at 4:45PM EDT by NWS Morristown TN |
| Expires | 2026-07-28T16:45:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | true |
| MergedCount | 14 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0920bd4ceb93ebfe2ff365adfa0c831699093532.001.1","noaa_urn:oid:2.49.0.1.840.0.b532309d82922e7f3ba55178e9cfee697b48f2a8.001.1","noaa_urn:oid:2.49.0.1.840.0.95a141331b02b4e1a072341c496c9f98c4e43ee1.002.1","noaa_urn:oid:2.49.0.1.840.0.886e81d5a0de973cb5596713ef4f2c02ed2a1fbb.001.1","noaa_urn:oid:2.49.0.1.840.0.230393b1b7f6c37570584479f29a3af8cd8840ca.001.1","noaa_urn:oid:2.49.0.1.840.0.29ef858db502d8f3893da678622efbc224345129.001.1","noaa_urn:oid:2.49.0.1.840.0.2556250f32250d6e77f79805e96df3567585e27f.001.1","noaa_urn:oid:2.49.0.1.840.0.8f2a85c6611368790652c219690cd7c7913c6868.001.1","noaa_urn:oid:2.49.0.1.840.0.a24b589ac082c9cc5fd00a48124e62fcffab88de.001.1","noaa_urn:oid:2.49.0.1.840.0.918bb2e6e9beea7dcc34593d38f78da5c42b4781.002.1","noaa_urn:oid:2.49.0.1.840.0.f0f22a29d7c4a62b499a73335f5fe2e7c385301c.001.1","noaa_urn:oid:2.49.0.1.840.0.23f7300148b44530e74367896f4b4d14d2c18fae.001.1","noaa_urn:oid:2.49.0.1.840.0.4474b9eccb7f9454a728a377beba1233c98ea696.002.1","noaa_urn:oid:2.49.0.1.840.0.df068837f625f70ab3d314b019b83dba7d7e2203.001.1"] |
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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