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 7 August 2026 at 23:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 22 detections recorded within 20 km of this point since 4 April 2026. The last comparable one was on 22 June 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 7 at 5:51PM CDT until August 7 at 6:30PM CDT by NWS Tulsa OK
Urban PEI: 111,275 within a heuristic 50 km radius; not unique people.
Nearby, since 4 April 2026
- June 7, 2026 · score 67 · 8.2 km
- September 7, 2026 · score 37 · 14.2 km
- August 7, 2026 · score 37 · 22.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 37 / 100 |
| Legacy data-support index | 0.77/1 |
| Coordinates | 35.5230, -94.0577 |
| Nearest City | Van Buren (28 km) |
| Urban exposure index (PEI) | 111.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T22:51:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.1ea0e1ab5934a49c08a43d34be010f5b |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-08-07T22:51:00.000Z.
First archived: 2026-08-07T22:59:38.636Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Le Flore, OK; Carroll, AR; Madison, AR |
| Headline | Severe Thunderstorm Warning issued August 7 at 5:51PM CDT until August 7 at 6:30PM CDT by NWS Tulsa OK |
| Expires | 2026-08-07T18:30:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1ea0e1ab5934a49c08a43d34be010f5b800d804b.001.1","noaa_urn:oid:2.49.0.1.840.0.86f0f64088acec21744988b9d845f8b5b6ea8bfb.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 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.
Review the area, threshold and delivery channel in your account.
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