Right now
The most recent data we hold from NOAA arrived 46 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 15:45 UTC. It is kept here as a record.
No stronger detection stands among the 51 recorded within 20 km of this point since 24 April 2026 — 20 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 18 at 9:55AM CDT until June 18 at 10:45AM CDT by NWS Tulsa OK
Urban PEI: 24,758 within a heuristic 50 km radius; not unique people.
Nearby, since 24 April 2026
- June 24, 2026 · score 22 · 16.2 km
- June 25, 2026 · score 34 · 16.2 km
- June 24, 2026 · score 34 · 19.5 km
How we know
4 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 | 0.88/1 |
| Coordinates | 37.0382, -96.8578 |
| Nearest City | Ponca City (42 km) |
| Urban exposure index (PEI) | 24.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-18T14:55:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.e0294fee211a312b8c2aaa8ee577f315 |
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: 2026-06-18T14:55:00.000Z.
First archived: 2026-06-18T14:59:28.523Z. 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 | Nowata, OK; Osage, OK; Washington, OK; Butler, KS; Garfield, OK; Grant, OK |
| Headline | Severe Thunderstorm Warning issued June 18 at 9:55AM CDT until June 18 at 10:45AM CDT by NWS Tulsa OK |
| Expires | 2026-06-18T10:45:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e0294fee211a312b8c2aaa8ee577f3150d74152f.001.1","noaa_urn:oid:2.49.0.1.840.0.b3b1768172f04e5fbd585b405b9c1e27e49b7bd3.001.1","noaa_urn:oid:2.49.0.1.840.0.381544aa24364fc4c8c143f09cbf6bfd2d85f341.001.1"] |
| 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_37.060_-97.040_1781781300000","source":"iem","severity":"low","severityValue":25,"timestamp":1781781300000,"latitude":37.06,"longitude":-97.04},{"id":"iem_H_36.690_-97.560_1781792760000","source":"iem","severity":"low","severityValue":25,"timestamp":1781792760000,"latitude":36.69,"longitude":-97.56},{"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.
Want to know when something happens in this area?