Right now
The most recent data we hold from NOAA arrived 10 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 5 July 2026 at 04:15 UTC. It is kept here as a record.
It is the 3rd strongest of the 36 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 4 at 11:41PM EDT until July 5 at 12:15AM EDT by NWS Morristown TN
Urban PEI: 127,990 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- September 5, 2026 · score 37 · 0.8 km
- July 5, 2026 · score 43 · 5.9 km
- July 19, 2026 · score 39 · 17.4 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 | 36.5698, -81.9835 |
| Nearest City | Bristol (19 km) |
| Urban exposure index (PEI) | 128.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-05T03:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.7cbe7d550d78584058291c38c6a7733d |
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: 2026-07-05T03:41:00.000Z.
First archived: 2026-07-05T03:58:42.721Z. 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 | Carter, TN; Greene, TN; Sullivan, TN; Unicoi, TN; Washington, TN; Smyth, VA; Tazewell, VA; Johnson, TN; Russell, VA; Washington, VA and 1 more areas |
| Headline | Severe Thunderstorm Warning issued July 4 at 11:41PM EDT until July 5 at 12:15AM EDT by NWS Morristown TN |
| Expires | 2026-07-05T00:15:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7cbe7d550d78584058291c38c6a7733ddd5e6e62.001.1","noaa_urn:oid:2.49.0.1.840.0.348413fa37515e73c112bb0e211226085a61db0d.001.1","noaa_urn:oid:2.49.0.1.840.0.0849d4065cfc64e8f82ff5ea9ab797a461ed07e6.001.1","noaa_urn:oid:2.49.0.1.840.0.ad932dff8d2a35b376b291aa6b9f3d90f3e924fa.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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