Right now
The most recent data we hold from NOAA arrived 40 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 19 September 2026 at 23:45 UTC. It is kept here as a record.
It is the 20th strongest of the 37 detections recorded within 20 km of this point since 17 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 September 19 at 6:12PM CDT until September 19 at 6:45PM CDT by NWS Norman OK
Urban PEI: 51,776 within a heuristic 50 km radius; not unique people.
Nearby, since 17 April 2026
- June 22, 2026 · score 63 · 5.4 km
- June 4, 2026 · score 39 · 23.5 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 32 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 32 / 100 |
| Legacy data-support index | 0.84/1 |
| Coordinates | 36.7242, -98.0417 |
| Nearest City | Enid (39 km) |
| Urban exposure index (PEI) | 51.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-19T23:12:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.24e29b73d162d2b34105d6a2202b42ea87489098.001.1 |
Physical priority index · v5. 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: 2026-09-19T23:12:00.000Z.
First archived: 2026-09-19T23:16:29.932Z. 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 | Major, OK; Woods, OK; Garfield, OK; Grant, OK; Kay, OK; Harper, KS; Sumner, KS and 3 more areas |
| Headline | Severe Thunderstorm Warning issued September 19 at 6:12PM CDT until September 19 at 6:45PM CDT by NWS Norman OK |
| Expires | 2026-09-19T18:45:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.24e29b73d162d2b34105d6a2202b42ea87489098.001.1","noaa_urn:oid:2.49.0.1.840.0.849c1391f54c2011235c7a9bcdd748f72155badd.001.1","noaa_urn:oid:2.49.0.1.840.0.ed38141cd160984cae0c1fece90db3ba2ddd3b92.001.1","noaa_urn:oid:2.49.0.1.840.0.93aff65c2e8664d19b865e2ef2afc095cdd92f4b.001.1","noaa_urn:oid:2.49.0.1.840.0.163d4543183f5bb73dbe680235fbcc462f31d8f7.001.1","noaa_urn:oid:2.49.0.1.840.0.4732c13556cc6a0e2aac24fb392ae7476ca1cdda.001.1"] |
| Spc ReportType | wind |
| Spc Speed | 58 |
| Spc Location | 3 WNW Hopeton |
| Spc County | Woods |
| Spc State | OK |
| Spc Comments | (OUN) |
| MergedSources | [{"id":"spc_wind_36.71_-98.71_19","source":"spc","severity":"medium","severityValue":45,"timestamp":1789853400000,"latitude":36.71,"longitude":-98.71},{"id":"spc_wind_36.71_-98.71_21","source":"spc","severity":"medium","severityValue":45,"timestamp":1789853700000,"latitude":36.71,"longitude":-98.71},{"id":"spc_wind_36.71_-98.71_25","source":"spc","severity":"medium","severityValue":45,"timestamp":1789854300000,"latitude":36.71,"longitude":-98.71},{"id":"spc_wind_36.71_-98.71_34","source":"spc","severity":"medium","severityValue":45,"timestamp":1789855200000,"latitude":36.71,"longitude":-98.71}] |
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.
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