This alert expired on 14 June 2026 at 01:00 UTC. It is kept here as a record.
No stronger detection stands among the 24 recorded within 20 km of this point since 15 April 2026 — 7 others scored the same. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 13 at 7:50PM CDT until June 13 at 8:00PM CDT by NWS Tulsa OK
An estimated 312,427 people live within 50 km of this point.
Nearby, since 15 April 2026
- June 13, 2026 · score 67 · 12.9 km
- June 12, 2026 · score 37 · 25.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 67 out of 100, at 80 % 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) | 67 / 100 |
| Our confidence | 80% |
| Coordinates | 36.3640, -94.5520 |
| Nearest City | Siloam Springs (19 km) |
| Population Exposed | 312.4K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-06-14T00:50:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.4542dcae0d7e5ca61c8af64368d46870 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Benton, AR; Benton, AR; Delaware, OK |
| Headline | Tornado Warning issued June 13 at 7:50PM CDT until June 13 at 8:00PM CDT by NWS Tulsa OK |
| Expires | 2026-06-13T20:00:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4542dcae0d7e5ca61c8af64368d4687049bd70e4.002.1","noaa_urn:oid:2.49.0.1.840.0.58d24fbb43481a308f55262d37d6202d3ba77be0.001.1"] |
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 near Siloam Springs?
Calamity.live data shows a weather event with CalamityScore 67/100, near Siloam Springs (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.