This alert expired on 16 March 2026 at 02:45 UTC. It is kept here as a record.
No stronger detection stands among the 48 recorded within 20 km of this point since 16 March 2026 — 23 others scored the same. Another comparable one was recorded here earlier the same day. 17 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 15 at 8:40PM CDT until March 15 at 9:45PM CDT by NWS Nashville TN
An estimated 1,672,124 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 4, 2026 · score 52 · 7.6 km
- July 4, 2026 · score 52 · 11.6 km
- June 1, 2026 · score 52 · 15.1 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 82 % 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) | 52 / 100 |
| Our confidence | 82% |
| Coordinates | 35.0765, -89.6901 |
| Nearest City | Collierville (5 km) |
| Population Exposed | 1.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T01:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.08ed3e42ce2ecf2465fa133c8c3820d0 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Houston, TN; Humphreys, TN; Montgomery, TN; Stewart, TN; Christian, KY; Muhlenberg, KY; Todd, KY; Benton, TN; Carroll, TN; Decatur, TN; Henderson, TN; Henry, TN; Weakley, TN and 24 more areas |
| Headline | Severe Thunderstorm Warning issued March 15 at 8:40PM CDT until March 15 at 9:45PM CDT by NWS Nashville TN |
| Expires | 2026-03-15T21:45:00-05:00 |
| SenderName | NWS Nashville TN |
| HasExactCoords | true |
| MergedCount | 27 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.08ed3e42ce2ecf2465fa133c8c3820d0550cb39e.001.1","noaa_urn:oid:2.49.0.1.840.0.d97e241e8f57d7780eda25e68695f04909c49930.001.1","noaa_urn:oid:2.49.0.1.840.0.fcd32dbeebb7e458dcc0ee1d9cfa0844069c3af9.002.1","noaa_urn:oid:2.49.0.1.840.0.411ce71deecf711d9135917738d25a0f44322e55.001.1","noaa_urn:oid:2.49.0.1.840.0.769ccb61f8f956d71fcc70d52b5c3296f886a6ee.001.1","noaa_urn:oid:2.49.0.1.840.0.fc2f5bd87ce11c33bffa23aaf59dea3b2bae217b.002.1","noaa_urn:oid:2.49.0.1.840.0.debcd27042c83024621a4b052a208cbe1416927d.002.1","noaa_urn:oid:2.49.0.1.840.0.4f7d7331b506ec2caf551c12ba029de3e0ae3b68.001.1","noaa_urn:oid:2.49.0.1.840.0.ee89b197f14dc7199e11f5440d04a86b3f51cc56.001.1","noaa_urn:oid:2.49.0.1.840.0.d09967d2dfa94aa0d8d14afb8c60261bff4de47c.001.1","noaa_urn:oid:2.49.0.1.840.0.75c08ad54b03f3810fc49623b67d7b2a291fa9a9.001.1","noaa_urn:oid:2.49.0.1.840.0.2f01dad089cfbad3172e04d2c46bc5d880750d12.001.1","noaa_urn:oid:2.49.0.1.840.0.d1d8fb341fcb3cc9c9689f884e2be3b4ad17d46b.001.1","noaa_urn:oid:2.49.0.1.840.0.4f8683814af81a3305a29552ac4b63e8d39e95a8.001.1","noaa_urn:oid:2.49.0.1.840.0.cb006ec8998e5141993d4ba589db6c9e3311948b.001.1","noaa_urn:oid:2.49.0.1.840.0.076e7acffc54ded3511c1d0d23b27c78fe779e1c.001.1","noaa_urn:oid:2.49.0.1.840.0.28e255c832d8b71314595785cbbb0aae79739080.001.1","noaa_urn:oid:2.49.0.1.840.0.051cbcca90db2f465fb1269d607d00a8b4032dcf.001.1","noaa_urn:oid:2.49.0.1.840.0.cb0a40923f218122c891690e837022a40bc727b9.002.1","noaa_urn:oid:2.49.0.1.840.0.8d5a74ee56a895b2b8026b22ae3fe1322ae035db.001.1","noaa_urn:oid:2.49.0.1.840.0.10966536ca09d8fb230d44430d8b5a337580a862.001.1","noaa_urn:oid:2.49.0.1.840.0.0cde71bc8ce04db97fd7bca5d4c3c698bb0840e9.002.1","noaa_urn:oid:2.49.0.1.840.0.21787e6b487e94736a8eff4a0f67a54fe88e1e1b.001.1","noaa_urn:oid:2.49.0.1.840.0.25965445965d598d44ff3347957ed9235e8d023e.001.1","noaa_urn:oid:2.49.0.1.840.0.a733d0c72c2d9ac3e48eddc0735fbdb698097b75.001.1","noaa_urn:oid:2.49.0.1.840.0.35652eae816d9c32e4dda91917a6e84d96814624.001.1","noaa_urn:oid:2.49.0.1.840.0.780ed2dabb075a5c977f7e5d2daf89a6f67485ec.001.1"] |
| Google News RssFeed | weather |
| Google News SourceName | FOX13 Memphis |
| MergedSources | [{"id":"gnews_weather_492669_110","source":"google_news","severity":"medium","severityValue":40,"timestamp":1773610744000,"latitude":35.15,"longitude":-90.05}] |
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 52/100, near Collierville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.