This alert expired on 7 August 2026 at 21:15 UTC. It is kept here as a record.
It is the 8th strongest of the 12 detections recorded within 20 km of this point since 9 May 2026. 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: Severe Thunderstorm Warning issued August 7 at 4:05PM CDT until August 7 at 4:15PM CDT by NWS Tulsa OK
Nearby, since 9 May 2026
- June 22, 2026 · score 46 · 14.4 km
- June 22, 2026 · score 58 · 16.2 km
- May 9, 2026 · score 22 · 18.3 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 16 out of 100, at 64 % 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) | 16 / 100 |
| Our confidence | 64% |
| Coordinates | 35.3772, -95.9869 |
| Nearest City | McAlester (53 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-07T21:05:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Rogers, OK; Wagoner, OK; Coal, OK; Pontotoc, OK |
| Headline | Severe Thunderstorm Warning issued August 7 at 4:05PM CDT until August 7 at 4:15PM CDT by NWS Tulsa OK |
| Expires | 2026-08-07T16:15:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.73492d53f76d0a12c475405736e1449b7a1e354e.001.1","noaa_urn:oid:2.49.0.1.840.0.2c84eb06de56e9a08c2578110e7ff45ed03d6995.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 59 |
| Iem Unit | MPH |
| Iem City | 3 ESE Holdenville |
| Iem County | Hughes |
| Iem State | OK |
| Iem Wfo | OUN |
| Iem Remark | Holdenville Mesonet. |
| MergedSources | [{"id":"iem_G_35.070_-96.360_1786132800000","source":"iem","severity":"low","severityValue":25,"timestamp":1786132800000,"latitude":35.07,"longitude":-96.36}] |
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 16/100, near McAlester (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.