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 19 May 2026 at 05:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 23 detections recorded within 20 km of this point since 19 May 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 May 18 at 11:08PM CDT until May 19 at 12:00AM CDT by NWS Norman OK
Nearby, since 19 May 2026
- June 14, 2026 · score 16 · 5.2 km
- June 26, 2026 · score 22 · 14.1 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 70 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 22 / 100 |
| Our confidence | 70% |
| Coordinates | 37.6480, -96.5520 |
| Nearest City | Derby (64 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-19T04:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ca7f1ced0e974812d2769034c43870f1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Grant, OK; Kay, OK; Butler, KS; Cowley, KS; Sumner, KS and 1 more areas |
| Headline | Severe Thunderstorm Warning issued May 18 at 11:08PM CDT until May 19 at 12:00AM CDT by NWS Norman OK |
| Expires | 2026-05-19T00:00:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ca7f1ced0e974812d2769034c43870f13fe03f3c.001.1","noaa_urn:oid:2.49.0.1.840.0.27c766fd9aa93ae5e36928824b49ab6f92d22f17.001.1","noaa_urn:oid:2.49.0.1.840.0.83b3c40cd5ad0c33bbf29d062b60e787c01c361b.001.1","noaa_urn:oid:2.49.0.1.840.0.716fd8146a37d9c58eb75f959fb128a92027f50d.001.1","noaa_urn:oid:2.49.0.1.840.0.64ff82c22c8c253d777e4e7c407feda40b907216.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 59 |
| Iem Unit | MPH |
| Iem City | 3 ESE Bel Aire |
| Iem County | Sedgwick |
| Iem State | KS |
| Iem Wfo | ICT |
| MergedSources | [{"id":"iem_G_37.800_-97.320_1779157020000","source":"iem","severity":"low","severityValue":25,"timestamp":1779157020000,"latitude":37.8,"longitude":-97.32},{"id":"iem_G_37.650_-97.240_1779157500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779157500000,"latitude":37.65,"longitude":-97.24},{"id":"iem_G_37.750_-97.220_1779158460000","source":"iem","severity":"low","severityValue":25,"timestamp":1779158460000,"latitude":37.75,"longitude":-97.22}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.