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 21 September 2026 at 20:15 UTC. It is kept here as a record.
It is the 11th strongest of the 43 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 6 September 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 21 at 3:42PM EDT until September 21 at 4:15PM EDT by NWS Charleston WV
Nearby, since 16 March 2026
- August 9, 2026 · score 22 · 2.5 km
- August 11, 2026 · score 58 · 15.1 km
- August 11, 2026 · score 58 · 18.0 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 16 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Legacy data-support index | 0.66/1 |
| Coordinates | 36.7865, -81.5748 |
| Nearest City | Bristol (59 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-21T19:42:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.5f9e8085c00fc9487233c6df4e0cfc618b090e55.001.1 |
Physical priority index · v5. 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: 2026-09-21T19:42:00.000Z.
First archived: 2026-09-21T19:47:01.293Z. 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 | Buchanan, VA; McDowell, WV; Wyoming, WV; Buchanan, VA; Dickenson, VA; Stokes, NC; Surry, NC; Franklin, VA; Henry, VA; Patrick, VA; City of Martinsville, VA and 1 more areas |
| Headline | Severe Thunderstorm Warning issued September 21 at 3:42PM EDT until September 21 at 4:15PM EDT by NWS Charleston WV |
| Expires | 2026-09-21T16:15:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5f9e8085c00fc9487233c6df4e0cfc618b090e55.001.1","noaa_urn:oid:2.49.0.1.840.0.f33001d1a9953469a1c5cdff055225ddcc89471e.001.1","noaa_urn:oid:2.49.0.1.840.0.58dc741f5e0b1a0bd080340d607db1e6eb04d3b3.001.1","noaa_urn:oid:2.49.0.1.840.0.08afa1bdaa53f2596d687445a72c8ae9e7dda048.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 1 SW Galax Hillsville A |
| Spc County | Carroll |
| Spc State | VA |
| Spc Comments | Tree down on Coulson Church Road. (RNK) |
| MergedSources | [{"id":"spc_wind_36.75_-80.83_4","source":"spc","severity":"medium","severityValue":45,"timestamp":1790011860000,"latitude":36.75,"longitude":-80.83}] |
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 in this area?