Right now
The most recent data we hold from NOAA arrived 4 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 02:30 UTC. It is kept here as a record.
No stronger detection stands among the 69 recorded within 20 km of this point since 16 March 2026 — 65 others scored the same. Another comparable one was recorded here earlier the same day. 64 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 15 at 8:28PM CDT until March 15 at 9:30PM CDT by NWS Memphis TN
An estimated 32,156 people live within 50 km of this point.
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 82 % 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) | 34 / 100 |
| Our confidence | 82% |
| Coordinates | 33.5562, -90.7307 |
| Nearest City | Greenville (35 km) |
| Population Exposed | 32.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T01:28:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ee89b197f14dc7199e11f5440d04a86b |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Alcorn, MS; Tishomingo, MS; Hardin, TN; McNairy, TN; Benton, MS; DeSoto, MS; Lafayette, MS; Marshall, MS; Panola, MS; Tate, MS; Union, MS; Alcorn, MS; Tishomingo, MS; Decatur, TN; Hardin, TN; McNairy, TN and 13 more areas |
| Headline | Severe Thunderstorm Warning issued March 15 at 8:28PM CDT until March 15 at 9:30PM CDT by NWS Memphis TN |
| Expires | 2026-03-15T21:30:00-05:00 |
| SenderName | NWS Memphis TN |
| HasExactCoords | true |
| MergedCount | 16 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ee89b197f14dc7199e11f5440d04a86b3f51cc56.001.1","noaa_urn:oid:2.49.0.1.840.0.bccf8b561e9319ec52ac187f42f7e88453ea8e13.001.1","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.d109f90706e4a2485b32e40d87813fcbf1e0f330.001.1","noaa_urn:oid:2.49.0.1.840.0.cb006ec8998e5141993d4ba589db6c9e3311948b.001.1","noaa_urn:oid:2.49.0.1.840.0.079d4daad567afbaa189d3eb9888ab67678eca77.002.1","noaa_urn:oid:2.49.0.1.840.0.28e255c832d8b71314595785cbbb0aae79739080.001.1","noaa_urn:oid:2.49.0.1.840.0.74db84fbaea78d8aee85e2e0e9a5abdf15b89c39.001.1","noaa_urn:oid:2.49.0.1.840.0.4f7d7331b506ec2caf551c12ba029de3e0ae3b68.001.1","noaa_urn:oid:2.49.0.1.840.0.4f8683814af81a3305a29552ac4b63e8d39e95a8.001.1","noaa_urn:oid:2.49.0.1.840.0.849573d8b30d6adc6b65ac6b94352d31a0f303ec.001.1","noaa_urn:oid:2.49.0.1.840.0.b3ddc45551d254bc7480532d641664b52faf73ae.002.1","noaa_urn:oid:2.49.0.1.840.0.19ae4e2c4804bda71d28e5cc92527d2e7461e157.001.1","noaa_urn:oid:2.49.0.1.840.0.b73d22349239b3d99b7a3df747082fae85f6b8f2.001.1","noaa_urn:oid:2.49.0.1.840.0.35652eae816d9c32e4dda91917a6e84d96814624.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 52 |
| Iem Unit | MPH |
| Iem City | 2 NE Metcalfe |
| Iem County | Washington |
| Iem State | MS |
| Iem Wfo | JAN |
| MergedSources | [{"id":"iem_G_33.480_-90.980_1773622020000","source":"iem","severity":"low","severityValue":25,"timestamp":1773622020000,"latitude":33.48,"longitude":-90.98}] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.