This alert expired on 3 July 2026 at 21:45 UTC. It is kept here as a record.
It is the 26th strongest of the 55 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 3 at 4:28PM CDT until July 3 at 4:45PM CDT by NWS Paducah KY
An estimated 1,324,976 people live within 50 km of this point.
Nearby, since 15 March 2026
- March 15, 2026 · score 52 · 1.2 km
- June 9, 2026 · score 52 · 2.7 km
- August 12, 2026 · score 52 · 4.1 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 46 out of 100, at 83 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 46 / 100 |
| Our confidence | 83% |
| Coordinates | 35.9915, -86.5090 |
| Nearest City | Smyrna (2 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T21:28:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.2eac37b1d11b3caa7eb0422f6c784587 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Daviess, KY; McLean, KY; Davidson, TN; Rutherford, TN; Williamson, TN; Wilson, TN; Daviess, KY and 7 more areas |
| Headline | Severe Thunderstorm Warning issued July 3 at 4:28PM CDT until July 3 at 4:45PM CDT by NWS Paducah KY |
| Expires | 2026-07-03T16:45:00-05:00 |
| SenderName | NWS Paducah KY |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2eac37b1d11b3caa7eb0422f6c784587ebe7dac8.001.1","noaa_urn:oid:2.49.0.1.840.0.8b71e20fcf18b476b8e60f9466e3cf9cd040171a.001.1","noaa_urn:oid:2.49.0.1.840.0.f43f3574beffb6089f354179073b556712edd0c7.001.1","noaa_urn:oid:2.49.0.1.840.0.445ca2575b776a885a54ca9efcf777082f98e22e.001.1","noaa_urn:oid:2.49.0.1.840.0.4fead3952b539e62dff5548bcb573def2038d756.001.1","noaa_urn:oid:2.49.0.1.840.0.9450383ef6b3864e5be547c1c380ca590850b269.001.1","noaa_urn:oid:2.49.0.1.840.0.463158ac57ba56cb53e1e9c6a230cd8d74bb514e.001.1","noaa_urn:oid:2.49.0.1.840.0.b050adda79bbce16328d87a2a51335f1545cc057.001.1","noaa_urn:oid:2.49.0.1.840.0.0c4de5f74d8a8fa9185da8342ebec1bc2094e508.001.1","noaa_urn:oid:2.49.0.1.840.0.ed24f2844d12074a1dba9885a914421d959c67a3.001.1","noaa_urn:oid:2.49.0.1.840.0.70d9e6aa15d4df1e21a5245a0bfdfb2492daa602.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 SSE Nolensville |
| Iem County | Williamson |
| Iem State | TN |
| Iem Wfo | OHX |
| Iem Remark | Trees down on York road. Time estimated from radar. |
| MergedSources | [{"id":"iem_D_35.940_-86.640_1783111680000","source":"iem","severity":"low","severityValue":25,"timestamp":1783111680000,"latitude":35.94,"longitude":-86.64}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 46/100, near Smyrna (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.