This alert expired on 15 March 2026 at 21:30 UTC. It is kept here as a record.
No stronger detection stands among the 70 recorded within 20 km of this point since 15 March 2026 — 4 others scored the same.
What the source measured
NOAA reported: Tornado Warning issued March 15 at 3:57PM CDT until March 15 at 4:30PM CDT by NWS Shreveport LA
Nearby, since 15 March 2026
- March 15, 2026 · score 46 · 5.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 57 % 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) | 46 / 100 |
| Our confidence | 57% |
| Coordinates | 34.1114, -94.0214 |
| Nearest City | Texarkana (75 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-15T20:57:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_8fbb5e31aa46005ba6cafdeff13a1f1178816318_001_1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Howard, AR; Sevier, AR |
| Headline | Tornado Warning issued March 15 at 3:57PM CDT until March 15 at 4:30PM CDT by NWS Shreveport LA |
| Expires | 2026-03-15T16:30:00-05:00 |
| 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 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.