Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
8 other detections within 20 km in the last 24 hours, the nearest 13 km from here.
This alert expired on 4 July 2026 at 16:15 UTC. It is kept here as a record.
It is the 5th strongest of the 44 detections recorded within 20 km of this point since 18 June 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 4 at 11:57AM EDT until July 4 at 12:15PM EDT by NWS Morristown TN
An estimated 162,848 people live within 50 km of this point.
Nearby, since 18 June 2026
- July 11, 2026 · score 39 · 10.4 km
- July 19, 2026 · score 43 · 12.8 km
- September 6, 2026 · score 32 · 13.2 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 85 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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 |
| Our confidence | 85% |
| Coordinates | 36.7140, -82.2880 |
| Nearest City | Bristol (15 km) |
| Population Exposed | 162.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T15:57:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a5247795561af97e77791c3310733c0502439f50.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Sullivan, TN; Russell, VA; Scott, VA; Washington, VA; City of Bristol, VA |
| Headline | Severe Thunderstorm Warning issued July 4 at 11:57AM EDT until July 4 at 12:15PM EDT by NWS Morristown TN |
| Expires | 2026-07-04T12:15:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 1 NNW Bloomingdale |
| Iem County | Sullivan |
| Iem State | TN |
| Iem Wfo | MRX |
| Iem Remark | Several trees down. |
| MergedSources | [{"id":"iem_D_36.590_-82.510_1783180440000","source":"iem","severity":"low","severityValue":25,"timestamp":1783180440000,"latitude":36.59,"longitude":-82.51}] |
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.
Want to know when something happens near Bristol?
Calamity.live data shows a weather event with CalamityScore 43/100, near Bristol (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.