Severe Weather in United States
Right now
The most recent data we hold from NOAA arrived 34 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 00:15 UTC. It is kept here as a record.
No stronger detection stands among the 43 recorded within 20 km of this point since 15 March 2026 — 3 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued March 15 at 6:51PM CDT until March 15 at 7:15PM CDT by NWS Shreveport LA
An estimated 70,227 people live within 50 km of this point.
Nearby, since 15 March 2026
- March 16, 2026 · score 45 · 0.7 km
- March 15, 2026 · score 63 · 2.6 km
- July 13, 2026 · score 39 · 7.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 63 out of 100, at 78 % 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 | Critical |
| Calamity Score (ours) | 63 / 100 |
| Our confidence | 78% |
| Coordinates | 31.4240, -94.2680 |
| Nearest City | Nacogdoches (42 km) |
| Population Exposed | 70.2K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-15T23:51:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.764d5678d8ceab96d4eb15bb0c0b612f21e8cbf7.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Nacogdoches, TX; San Augustine, TX |
| Headline | Tornado Warning issued March 15 at 6:51PM CDT until March 15 at 7:15PM CDT by NWS Shreveport LA |
| Expires | 2026-03-15T19:15:00-05:00 |
| SenderName | NWS Shreveport LA |
| HasExactCoords | true |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 63/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.