Right now
The most recent data we hold from NOAA arrived 6 hours 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 3 July 2026 at 23:45 UTC. It is kept here as a record.
No stronger detection stands among the 60 recorded within 20 km of this point since 16 March 2026 — 24 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 3 at 7:32PM EDT until July 3 at 7:45PM EDT by NWS Morristown TN
Urban PEI: 51,221 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- August 12, 2026 · score 34 · 12.7 km
- September 6, 2026 · score 37 · 22.6 km
- September 5, 2026 · score 37 · 22.6 km
How we know
5 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.89/1 |
| Coordinates | 36.1433, -84.5495 |
| Nearest City | Oak Ridge (29 km) |
| Urban exposure index (PEI) | 51.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T23:32:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.db82c06570ecf9c2f4fc258592356df6 |
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: 2026-07-03T23:32:00.000Z.
First archived: 2026-07-03T23:44:32.866Z. 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 | Anderson, TN; Morgan, TN; Roane, TN; Morgan, TN |
| Headline | Severe Thunderstorm Warning issued July 3 at 7:32PM EDT until July 3 at 7:45PM EDT by NWS Morristown TN |
| Expires | 2026-07-03T19:45:00-04:00 |
| SenderName | NWS Morristown TN |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.db82c06570ecf9c2f4fc258592356df6af3c5224.002.1","noaa_urn:oid:2.49.0.1.840.0.b22f1105231ef10241ccedc2c351f6cfbb3f07c3.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 0.75 |
| Iem Unit | Inch |
| Iem City | 6 NE Oak Ridge |
| Iem County | Anderson |
| Iem State | TN |
| Iem Wfo | MRX |
| Iem Remark | Brief power loss accompanying the hail. |
| MergedSources | [{"id":"iem_H_36.080_-84.200_1783120740000","source":"iem","severity":"low","severityValue":25,"timestamp":1783120740000,"latitude":36.08,"longitude":-84.2},{"id":"iem_D_35.510_-84.790_1783114500000","source":"iem","severity":"low","severityValue":25,"timestamp":1783114500000,"latitude":35.51,"longitude":-84.79},{"id":"iem_H_35.980_-84.410_1783119120000","source":"iem","severity":"low","severityValue":25,"timestamp":1783119120000,"latitude":35.98,"longitude":-84.41},{"id":"iem_H_36.020_-84.220_1783118400000","source":"iem","severity":"low","severityValue":25,"timestamp":1783118400000,"latitude":36.02,"longitude":-84.22}] |
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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