Right now
The most recent data we hold from NOAA arrived 6 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
4 other detections within 20 km in the last 24 hours, the nearest 19 km from here.
This alert expired on 20 September 2026 at 03:30 UTC. It is kept here as a record.
It is the 13th strongest of the 23 detections recorded within 20 km of this point since 22 June 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 September 19 at 10:07PM CDT until September 19 at 10:30PM CDT by NWS Norman OK
Nearby, since 22 June 2026
- September 20, 2026 · score 28 · 20.4 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 16 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) | 16 / 100 |
| Legacy data-support index | 0.66/1 |
| Coordinates | 36.3400, -99.6690 |
| Nearest City | Liberal (136 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-20T03:07:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.c4762a9880e5abd611b942fcfd94a4464359aaff.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: 2026-09-20T03:07:00.000Z.
First archived: 2026-09-20T03:10:29.016Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-20T03:15:53.280Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Woodward, OK; Ellis, OK |
| Headline | Severe Thunderstorm Warning issued September 19 at 10:07PM CDT until September 19 at 10:30PM CDT by NWS Norman OK |
| Expires | 2026-09-19T22:30:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c4762a9880e5abd611b942fcfd94a4464359aaff.001.1","noaa_urn:oid:2.49.0.1.840.0.ba2603a76688fc24e3d324862286600b64dcd544.001.1"] |
| Spc ReportType | wind |
| Spc Speed | 67 |
| Spc Location | 3 SSW Freedom |
| Spc County | Woodward |
| Spc State | OK |
| Spc Comments | (OUN) |
| MergedSources | [{"id":"spc_wind_36.73_-99.14_19","source":"spc","severity":"medium","severityValue":45,"timestamp":1789873928957,"latitude":36.73,"longitude":-99.14}] |
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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