Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
2 other detections within 20 km in the last 24 hours, the nearest 15 km from here.
This alert expired on 28 July 2026 at 19:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 49 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 6 July 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 28 at 2:50PM EDT until July 28 at 3:45PM EDT by NWS Morristown TN
Nearby, since 16 March 2026
- July 6, 2026 · score 22 · 16.3 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 | 37.1946, -82.3576 |
| Nearest City | Bristol (68 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-28T18:50:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.5aa79ad754e74f4ae43efe34270b539a |
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: 2026-07-28T18:50:00.000Z.
First archived: 2026-07-28T18:52:17.532Z. 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 | Cocke, TN; Greene, TN; Bland, VA; Smyth, VA; Tazewell, VA; Wythe, VA; Floyd, KY; Magoffin, KY; Martin, KY; Pike, KY and 5 more areas |
| Headline | Severe Thunderstorm Warning issued July 28 at 2:50PM EDT until July 28 at 3:45PM EDT by NWS Morristown TN |
| Expires | 2026-07-28T15:45:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5aa79ad754e74f4ae43efe34270b539a21437998.001.1","noaa_urn:oid:2.49.0.1.840.0.5e18b881db1e95bdd014f215380c2502cee3aa48.001.1","noaa_urn:oid:2.49.0.1.840.0.66151e90f1bc3d5225db244ef0ead0d25666efeb.001.1","noaa_urn:oid:2.49.0.1.840.0.6cd99e5ed87ff91ad1f18349db640da6dfc44641.001.1","noaa_urn:oid:2.49.0.1.840.0.9b0406a7350f18c81aae051a7c8b92bcc07c1061.002.1","noaa_urn:oid:2.49.0.1.840.0.b5d887f6096b65dd08898bf1e2d935181cdf5c67.001.1","noaa_urn:oid:2.49.0.1.840.0.06337f13b4270adf58bdd7c29575a870ff620ca2.002.1","noaa_urn:oid:2.49.0.1.840.0.e7f4b7a5a07accfefd2f00f0828d08197f3d7e9a.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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