Right now
The most recent data we hold from NOAA arrived 2 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 30 May 2026 at 00:30 UTC. It is kept here as a record.
It is the 13th strongest of the 38 detections recorded within 20 km of this point since 23 April 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 29 at 6:39PM CDT until May 29 at 7:30PM CDT by NWS Norman OK
Nearby, since 23 April 2026
- May 29, 2026 · score 22 · 4.5 km
- August 7, 2026 · score 28 · 9.5 km
- May 29, 2026 · score 39 · 11.4 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 68 % 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 | 68% |
| Coordinates | 36.8792, -97.6348 |
| Nearest City | Ponca City (52 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-29T23:39:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.169ca892f9ed7931eaf530ad66e0c643 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Kay, OK; Harper, KS; Kingman, KS; Sumner, KS; Alfalfa, OK; Grant, OK and 3 more areas |
| Headline | Severe Thunderstorm Warning issued May 29 at 6:39PM CDT until May 29 at 7:30PM CDT by NWS Norman OK |
| Expires | 2026-05-29T19:30:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.169ca892f9ed7931eaf530ad66e0c643f04543f7.001.1","noaa_urn:oid:2.49.0.1.840.0.3ea049ffe3783d9df7b1956187a289d856c6b5c8.001.1","noaa_urn:oid:2.49.0.1.840.0.5ca0d51fb6978ba5e425116b687b580ac5fabde6.001.1","noaa_urn:oid:2.49.0.1.840.0.6641a10940e554604192b8d713caac8c6dfba8ee.001.1","noaa_urn:oid:2.49.0.1.840.0.361390348d3b876efefdbe2cf108ec1eeb958d8b.001.1","noaa_urn:oid:2.49.0.1.840.0.d77d2eff1a1c5fe91008f21135c255fa25d84f85.002.1","noaa_urn:oid:2.49.0.1.840.0.de9a4a4fac861137f82b6d5415e9c5c56a5ce4a2.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 68 |
| Iem Unit | MPH |
| Iem City | 1 W Lahoma |
| Iem County | Major |
| Iem State | OK |
| Iem Wfo | OUN |
| MergedSources | [{"id":"iem_G_36.550_-97.830_1780093380000","source":"iem","severity":"low","severityValue":25,"timestamp":1780093380000,"latitude":36.55,"longitude":-97.83},{"id":"iem_G_36.390_-98.110_1780091400000","source":"iem","severity":"low","severityValue":25,"timestamp":1780091400000,"latitude":36.39,"longitude":-98.11}] |
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.
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