This alert expired on 19 May 2026 at 07:01 UTC. It is kept here as a record.
No stronger detection stands among the 51 recorded within 20 km of this point since 18 April 2026 — 40 others scored the same. Another comparable one was recorded here earlier the same day. 21 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 19 at 1:52AM CDT until May 19 at 2:00AM CDT by NWS Norman OK
An estimated 24,758 people live within 50 km of this point.
Nearby, since 18 April 2026
- June 25, 2026 · score 34 · 14.6 km
- July 11, 2026 · score 34 · 21.4 km
How we know
Confirmed by 10 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.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 90% |
| Coordinates | 36.7744, -96.8140 |
| Nearest City | Ponca City (26 km) |
| Population Exposed | 24.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-19T06:52:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a4194460e9443960198e7093426a2b04 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Kay, OK; Osage, OK |
| Headline | Severe Thunderstorm Warning issued May 19 at 1:52AM CDT until May 19 at 2:00AM CDT by NWS Norman OK |
| Expires | 2026-05-19T02:01:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a4194460e9443960198e7093426a2b04948022fb.001.1","noaa_urn:oid:2.49.0.1.840.0.b493e7e55281c1ce6f72d9da4fd71939fbe6b681.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | 1 E Ponca City |
| Iem County | Kay |
| Iem State | OK |
| Iem Wfo | OUN |
| Iem Remark | Report from mPING: Half Dollar (1.25 in.). |
| MergedSources | [{"id":"iem_D_36.880_-97.120_1779169500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779169500000,"latitude":36.88,"longitude":-97.12},{"id":"iem_G_37.230_-97.020_1779167520000","source":"iem","severity":"low","severityValue":25,"timestamp":1779167520000,"latitude":37.23,"longitude":-97.02},{"id":"iem_G_36.880_-96.910_1779170700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779170700000,"latitude":36.88,"longitude":-96.91},{"id":"iem_H_37.070_-97.040_1779168900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779168900000,"latitude":37.07,"longitude":-97.04},{"id":"iem_G_37.170_-97.040_1779167520000","source":"iem","severity":"low","severityValue":25,"timestamp":1779167520000,"latitude":37.17,"longitude":-97.04},{"id":"iem_H_37.280_-97.320_1779163560000","source":"iem","severity":"low","severityValue":25,"timestamp":1779163560000,"latitude":37.28,"longitude":-97.32},{"id":"iem_G_37.220_-97.020_1779167520000","source":"iem","severity":"low","severityValue":25,"timestamp":1779167520000,"latitude":37.22,"longitude":-97.02},{"id":"iem_D_37.240_-96.990_1779168780000","source":"iem","severity":"low","severityValue":25,"timestamp":1779168780000,"latitude":37.24,"longitude":-96.99},{"id":"iem_H_36.700_-97.070_1779170460000","source":"iem","severity":"low","severityValue":25,"timestamp":1779170460000,"latitude":36.7,"longitude":-97.07}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 34/100, near Ponca City (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.