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.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 28 July 2026 at 23:00 UTC. It is kept here as a record.
It is the 21st strongest of the 82 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 28 at 6:40PM EDT until July 28 at 7:00PM EDT by NWS Morristown TN
Urban PEI: 93,110 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- September 6, 2026 · score 32 · 0.9 km
- July 20, 2026 · score 39 · 13.3 km
- June 8, 2026 · score 32 · 14.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 32 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) | 32 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 35.8672, -81.5954 |
| Nearest City | Lenoir (7 km) |
| Urban exposure index (PEI) | 93.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-28T22:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.9582a85a1cb4961daf101cc44ed9df7a |
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: 2026-07-28T22:40:00.000Z.
First archived: 2026-07-28T22:42:28.489Z. 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 | Blount, TN; Sevier, TN; Buncombe, NC; Yancey, NC; Burke, NC; Caldwell, NC; Catawba, NC; Cleveland, NC; Lincoln, NC; McDowell, NC; Rutherford, NC and 3 more areas |
| Headline | Severe Thunderstorm Warning issued July 28 at 6:40PM EDT until July 28 at 7:00PM EDT by NWS Morristown TN |
| Expires | 2026-07-28T19:00:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9582a85a1cb4961daf101cc44ed9df7a870a1156.001.1","noaa_urn:oid:2.49.0.1.840.0.f363b8778d32a65c72779c167bd74a8834adcf88.002.1","noaa_urn:oid:2.49.0.1.840.0.bee1e85af4a70360d55d28c1e694516da9c28598.001.1","noaa_urn:oid:2.49.0.1.840.0.249494ba66f137d08168d112d9bb2268393c2854.001.1","noaa_urn:oid:2.49.0.1.840.0.eb0ae5e57aa88e994a48c4e40a3b8dc709613d72.001.1","noaa_urn:oid:2.49.0.1.840.0.1ab3d230a89871f2e03a5a21cba07686b114a19a.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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