Right now
The most recent data we hold from NOAA arrived 12 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 18 June 2026 at 18:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 62 detections recorded within 20 km of this point since 16 April 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 18 at 12:56PM CDT until June 18 at 1:45PM CDT by NWS Norman OK
Urban PEI: 24,758 within a heuristic 50 km radius; not unique people.
Nearby, since 16 April 2026
- June 25, 2026 · score 34 · 13.9 km
- May 19, 2026 · score 34 · 14.6 km
- June 22, 2026 · score 58 · 21.2 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.85/1 |
| Coordinates | 36.8628, -96.9352 |
| Nearest City | Ponca City (22 km) |
| Urban exposure index (PEI) | 24.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-18T17:56:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.82289197030bc843362735796b9b7f1e |
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: 2026-06-18T17:56:00.000Z.
First archived: 2026-06-18T18:00:16.948Z. 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 | Garfield, OK; Grant, OK; Kay, OK; Noble, OK; Craig, OK; Sumner, KS and 1 more areas |
| Headline | Severe Thunderstorm Warning issued June 18 at 12:56PM CDT until June 18 at 1:45PM CDT by NWS Norman OK |
| Expires | 2026-06-18T13:45:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.82289197030bc843362735796b9b7f1e5b3ca0cd.001.1","noaa_urn:oid:2.49.0.1.840.0.70a15ca5f6622c3e840e2ad8df7e211c759a02f1.001.1","noaa_urn:oid:2.49.0.1.840.0.f865fcbfb02e6686fb0964330ae31be2068cf932.001.1","noaa_urn:oid:2.49.0.1.840.0.86de617894fd5e520a7f80e504f67b6503ff7173.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | Mulvane |
| Iem County | Sedgwick |
| Iem State | KS |
| Iem Wfo | ICT |
| Iem Remark | Report from mPING: Quarter (1.00 in.). |
| MergedSources | [{"id":"iem_H_37.480_-97.240_1781791680000","source":"iem","severity":"low","severityValue":25,"timestamp":1781791680000,"latitude":37.48,"longitude":-97.24}] |
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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