Right now
The most recent data we hold from NOAA arrived 11 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 4th strongest of the 54 detections recorded within 20 km of this point since 23 April 2026. The last comparable one was on 27 April 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 18 at 11:32PM CDT until May 19 at 12:00AM CDT by NWS Norman OK
An estimated 24,758 people live within 50 km of this point.
Nearby, since 23 April 2026
- June 19, 2026 · score 34 · 13.0 km
- June 22, 2026 · score 58 · 14.1 km
How we know
Confirmed by 8 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 90 % 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) | 34 / 100 |
| Our confidence | 90% |
| Coordinates | 37.0535, -97.2423 |
| Nearest City | Ponca City (41 km) |
| Population Exposed | 24.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-19T04:32:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.659ac793a9d96bca4bbc7acb7f588776 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Grant, OK; Kay, OK; Cowley, KS; Sumner, KS |
| Headline | Severe Thunderstorm Warning issued May 18 at 11:32PM 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 | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.659ac793a9d96bca4bbc7acb7f5887765bab4be0.001.1","noaa_urn:oid:2.49.0.1.840.0.c3832c8fb2eada7e826a21d191b889f49046eebc.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 65 |
| Iem Unit | MPH |
| Iem City | Conway Springs |
| Iem County | Sumner |
| Iem State | KS |
| Iem Wfo | ICT |
| MergedSources | [{"id":"iem_H_37.320_-97.640_1779161820000","source":"iem","severity":"low","severityValue":25,"timestamp":1779161820000,"latitude":37.32,"longitude":-97.64},{"id":"iem_H_37.270_-97.500_1779163020000","source":"iem","severity":"low","severityValue":25,"timestamp":1779163020000,"latitude":37.27,"longitude":-97.5},{"id":"iem_G_37.440_-97.820_1779158700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779158700000,"latitude":37.44,"longitude":-97.82},{"id":"iem_H_37.390_-97.640_1779161160000","source":"iem","severity":"low","severityValue":25,"timestamp":1779161160000,"latitude":37.39,"longitude":-97.64},{"id":"iem_G_37.650_-97.240_1779157500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779157500000,"latitude":37.65,"longitude":-97.24},{"id":"iem_H_37.270_-97.400_1779163320000","source":"iem","severity":"low","severityValue":25,"timestamp":1779163320000,"latitude":37.27,"longitude":-97.4},{"id":"iem_G_37.390_-97.640_1779159540000","source":"iem","severity":"low","severityValue":25,"timestamp":1779159540000,"latitude":37.39,"longitude":-97.64}] |
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 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.