Right now
The most recent data we hold from NOAA arrived 7 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 20:31 UTC. It is kept here as a record.
It is the 9th strongest of the 23 detections recorded within 20 km of this point since 24 April 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 7 at 3:21PM CDT until August 7 at 3:30PM CDT by NWS Norman OK
Urban PEI: 17,303 within a heuristic 50 km radius; not unique people.
Nearby, since 24 April 2026
- June 6, 2026 · score 34 · 13.9 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 28 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) | 28 / 100 |
| Legacy data-support index | 0.85/1 |
| Coordinates | 34.9527, -96.4794 |
| Nearest City | Ada (27 km) |
| Urban exposure index (PEI) | 17.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-07T20:21:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.8eff3bf7569d07766b7655fc88b23473 |
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: 2026-08-07T20:21:00.000Z.
First archived: 2026-08-07T20:30:40.398Z. 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 | Hughes, OK; Garvin, OK; McClain, OK; Pontotoc, OK; Pottawatomie, OK; Seminole, OK |
| Headline | Severe Thunderstorm Warning issued August 7 at 3:21PM CDT until August 7 at 3:30PM CDT by NWS Norman OK |
| Expires | 2026-08-07T15:31:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8eff3bf7569d07766b7655fc88b2347397839c87.001.1","noaa_urn:oid:2.49.0.1.840.0.73dee76988edcb9e07b4431ac0c50e968a25d3eb.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 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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