This alert expired on 8 August 2026 at 00:00 UTC. It is kept here as a record.
It is the 3rd strongest of the 41 detections recorded within 20 km of this point since 4 April 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 7 at 6:19PM CDT until August 7 at 7:00PM CDT by NWS Tulsa OK
An estimated 111,275 people live within 50 km of this point.
Nearby, since 4 April 2026
- June 18, 2026 · score 43 · 2.4 km
- August 7, 2026 · score 37 · 9.9 km
- May 9, 2026 · score 43 · 21.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 77 % 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) | 43 / 100 |
| Our confidence | 77% |
| Coordinates | 35.2920, -94.2219 |
| Nearest City | Fort Smith (19 km) |
| Population Exposed | 111.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T23:19:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d1b2cf75f9870f10d0c42af7085e43cc |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Carroll, AR; Madison, AR; Le Flore, OK |
| Headline | Severe Thunderstorm Warning issued August 7 at 6:19PM CDT until August 7 at 7:00PM CDT by NWS Tulsa OK |
| Expires | 2026-08-07T19:00:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d1b2cf75f9870f10d0c42af7085e43ccf354dbe7.001.1","noaa_urn:oid:2.49.0.1.840.0.08ccd1d43e5dd67cce0ebdb334a656b28c2fb440.001.1","noaa_urn:oid:2.49.0.1.840.0.f30e8a982737763a816132b1fc6ecfb995ca005f.001.1","noaa_urn:oid:2.49.0.1.840.0.1ea0e1ab5934a49c08a43d34be010f5b800d804b.001.1","noaa_urn:oid:2.49.0.1.840.0.6386103396f663da469acbc5216dce170d079ac7.001.1"] |
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 43/100, near Fort Smith (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.