Right now
The most recent data we hold from NOAA arrived 1 minute 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 9th strongest of the 57 detections recorded within 20 km of this point since 15 March 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 6:30PM CDT until September 19 at 6:45PM CDT by NWS Norman OK
Urban PEI: 19,216 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- September 19, 2026 · score 49 · 15.1 km
- June 14, 2026 · score 32 · 18.7 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 40 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 | High |
| Calamity Score (ours) | 40 / 100 |
| Legacy data-support index | 0.84/1 |
| Coordinates | 38.1611, -97.3553 |
| Nearest City | Newton (12 km) |
| Urban exposure index (PEI) | 19.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-19T23:30:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.49c14f31592cf31270521e5ce33aa852c7f7f584.001.1 |
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: 2026-09-19T23:30:00.000Z.
First archived: 2026-09-19T23:32:35.656Z. 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; Cowley, KS; Sumner, KS; Garfield, OK; Grant, OK; Kay, OK and 7 more areas |
| Headline | Severe Thunderstorm Warning issued September 19 at 6:30PM 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 | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.49c14f31592cf31270521e5ce33aa852c7f7f584.001.1","noaa_urn:oid:2.49.0.1.840.0.ea5c27301ee0cf5cdf3c02d118503fee11b772cd.001.1","noaa_urn:oid:2.49.0.1.840.0.5e73119a0ed0bebb74ec7cfcc1d0de98149cda35.001.1","noaa_urn:oid:2.49.0.1.840.0.9fa9d03e9d8e821433752b88981924663ce3fd4c.001.1","noaa_urn:oid:2.49.0.1.840.0.fc73cb8ca3fd1e910d57403825e98ae84305ceb6.002.1","noaa_urn:oid:2.49.0.1.840.0.116e80776ed51c16fb220e6be0bb2d3fffe302ee.001.1","noaa_urn:oid:2.49.0.1.840.0.90d8ec5b839a304c051518edb0d4ad131b212048.001.1","noaa_urn:oid:2.49.0.1.840.0.aa9eac532b61bcdbd1910a4239d5f41b0d2dc839.001.1","noaa_urn:oid:2.49.0.1.840.0.de4612f1a8000180f58ee94a7a57c6faf4578f82.001.1","noaa_urn:oid:2.49.0.1.840.0.d8e95385cf02a31421554fc3151e0d37c5407be8.001.1"] |
| Spc ReportType | hail |
| Spc Speed | 100 |
| Spc Location | Marquette |
| Spc County | McPherson |
| Spc State | KS |
| Spc Comments | (ICT) |
| MergedSources | [{"id":"spc_wind_38.68_-97.62_47","source":"spc","severity":"medium","severityValue":45,"timestamp":1789856400000,"latitude":38.68,"longitude":-97.62},{"id":"spc_hail_38.57_-97.87_59","source":"spc","severity":"high","severityValue":65,"timestamp":1789854360000,"latitude":38.57,"longitude":-97.87},{"id":"spc_hail_38.55_-97.83_61","source":"spc","severity":"high","severityValue":65,"timestamp":1789854480000,"latitude":38.55,"longitude":-97.83}] |
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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