Right now
The most recent data we hold from NOAA arrived 9 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 16 March 2026 at 06:15 UTC. It is kept here as a record.
It is the 12th strongest of the 55 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 March 15 at 11:59PM CDT until March 16 at 1:15AM CDT by NWS Huntsville AL
An estimated 278,730 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 21, 2026 · score 43 · 2.3 km
- July 28, 2026 · score 43 · 2.3 km
- July 27, 2026 · score 43 · 2.3 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 83 % 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 | 83% |
| Coordinates | 35.5032, -86.5750 |
| Nearest City | Shelbyville (11 km) |
| Population Exposed | 278.7K within 50 km |
| Impact Tier | significant |
| Date | 2026-03-16 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.784d1547e6c90d4b78f64ac681f01633 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cullman, AL; Lawrence, AL; Madison, AL; Marshall, AL; Morgan, AL; Fayette, AL; Lamar, AL; Marion, AL; Walker, AL; Winston, AL; Pickens, AL and 15 more areas |
| Headline | Severe Thunderstorm Warning issued March 15 at 11:59PM CDT until March 16 at 1:15AM CDT by NWS Huntsville AL |
| Expires | 2026-03-16T01:15:00-05:00 |
| SenderName | NWS Huntsville AL |
| HasExactCoords | true |
| MergedCount | 19 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.784d1547e6c90d4b78f64ac681f01633cd24f8f6.001.1","noaa_urn:oid:2.49.0.1.840.0.d4922558d1dc442f82f76792e3f97594a4263e44.001.1","noaa_urn:oid:2.49.0.1.840.0.7e3ad30505a53496a501f84430fb7bf2235cdd50.001.1","noaa_urn:oid:2.49.0.1.840.0.00acc95f739207d2916ab8bb77b660a04a3e3c35.002.1","noaa_urn:oid:2.49.0.1.840.0.bd0e2df6aa9a9798aac41932abf0d7b1053f31c7.001.1","noaa_urn:oid:2.49.0.1.840.0.d1e57898bf1ab4352f1050a7d184be21126c0287.001.1","noaa_urn:oid:2.49.0.1.840.0.bd319c5b299843cbf42791beeb390c3469e35f9d.002.1","noaa_urn:oid:2.49.0.1.840.0.8b0b7874bf0d9ceb6e16197ce0f36005c38936df.002.1","noaa_urn:oid:2.49.0.1.840.0.458cd0622e786ba82e0f4766ccec0edd555cb74f.001.1","noaa_urn:oid:2.49.0.1.840.0.c0a645596c2fe0b884830755312242caf6d46e18.001.1","noaa_urn:oid:2.49.0.1.840.0.50c088d970bec17b4629f1745bd301bf041c6d44.001.1","noaa_urn:oid:2.49.0.1.840.0.bb690877e0c32ba9dfbcef8d4f2139c7e983af82.001.1","noaa_urn:oid:2.49.0.1.840.0.06b4b2373c45a73c09ba950104185a8da99952e2.001.1","noaa_urn:oid:2.49.0.1.840.0.ce3dedb6669c6c214b684ed948984f72f2ae8063.001.1","noaa_urn:oid:2.49.0.1.840.0.4672818837ac04759cc0e589eb2ebb87956970cd.002.1","noaa_urn:oid:2.49.0.1.840.0.0156a24ec17ce8379ca119a9e165b75110e50c44.001.1","noaa_urn:oid:2.49.0.1.840.0.dc1672e8ef3ef5f1a7ff91f1215ca039b0b3b90c.001.1","noaa_urn:oid:2.49.0.1.840.0.b0470d36d7ff7e78903499405c76edeb492c3dd7.001.1","noaa_urn:oid:2.49.0.1.840.0.1d5a7b16078ab845c2b401dc38a716969f4b2975.002.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 4 SW Hermitage |
| Spc County | Davidson |
| Spc State | TN |
| Spc Comments | Tree down in backyard near Lakeland and Donelson Pike. (OHX) |
| MergedSources | [{"id":"spc_wind_36.15_-86.67_193","source":"spc","severity":"medium","severityValue":45,"timestamp":1773633180000,"latitude":36.15,"longitude":-86.67}] |
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 Shelbyville?
Calamity.live data shows a weather event with CalamityScore 43/100, near Shelbyville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.