Right now
The most recent data we hold from NOAA arrived 47 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
12 other detections within 20 km in the last 24 hours, the nearest 11 km from here.
This alert expired on 3 July 2026 at 20:30 UTC. It is kept here as a record.
No stronger detection stands among the 63 recorded within 20 km of this point since 16 March 2026 — 37 others scored the same. The last comparable one was on 22 June 2026. 16 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 3 at 2:40PM CDT until July 3 at 3:30PM CDT by NWS Nashville TN
Urban PEI: 371,216 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- March 16, 2026 · score 43 · 0.4 km
- July 3, 2026 · score 43 · 7.8 km
- September 20, 2026 · score 37 · 14.2 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 | 0.78/1 |
| Coordinates | 35.0766, -85.6223 |
| Nearest City | Chattanooga (29 km) |
| Urban exposure index (PEI) | 371.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T19:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.aaaf92802c770c97f03befc8ab4910b1 |
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: 2026-07-03T19:40:00.000Z.
First archived: 2026-07-03T19:42:08.279Z. 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 | Maury, TN; Butler, KY; Warren, KY; Hickman, TN and 6 more areas |
| Headline | Severe Thunderstorm Warning issued July 3 at 2:40PM CDT until July 3 at 3:30PM CDT by NWS Nashville TN |
| Expires | 2026-07-03T15:30:00-05:00 |
| SenderName | NWS Nashville TN |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.aaaf92802c770c97f03befc8ab4910b132039650.001.1","noaa_urn:oid:2.49.0.1.840.0.0513e23ab79609efc8d2f91298e39f2fc99f2d5d.001.1","noaa_urn:oid:2.49.0.1.840.0.9dadbb5df701248e90bfc1307589c0ae6c099c89.001.1","noaa_urn:oid:2.49.0.1.840.0.c8d9b0c777d6973d467cb90b0fd35b7108ddfca1.001.1","noaa_urn:oid:2.49.0.1.840.0.f26d2f732dcb7cc7ce073eab248636419df3c721.001.1","noaa_urn:oid:2.49.0.1.840.0.9e1ab0fb0079f263f6c0c65cc8989b4ce7d1c11e.001.1","noaa_urn:oid:2.49.0.1.840.0.09cc300ac292d50d94baa3b8edc1e5755c7c3b0c.001.1","noaa_urn:oid:2.49.0.1.840.0.909aeba60a0927f103175dcb2191fdb646da9ea2.001.1","noaa_urn:oid:2.49.0.1.840.0.3fe4a4e8215c7005b464c4037d99b23500b3e1bb.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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