Right now
The most recent data we hold from NOAA arrived 2 hours 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 31 May 2026 at 01:15 UTC. It is kept here as a record.
It is the 3rd strongest of the 40 detections recorded within 20 km of this point since 27 April 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 30 at 7:05PM MDT until May 30 at 7:15PM MDT by NWS Denver CO
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 60 % 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 | 60% |
| Coordinates | 40.9004, -100.0494 |
| Nearest City | North Platte (65 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-31T01:05:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.de2585fb2406ce07ad787ecff706b9b5 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Phillips, CO; Sedgwick, CO; Custer, NE; Lincoln, NE; Logan, NE; McPherson, NE; Custer, NE and 5 more areas |
| Headline | Severe Thunderstorm Warning issued May 30 at 7:05PM MDT until May 30 at 7:15PM MDT by NWS Denver CO |
| Expires | 2026-05-30T19:15:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.de2585fb2406ce07ad787ecff706b9b58036f096.001.1","noaa_urn:oid:2.49.0.1.840.0.985fe0e57249addf349b3971f602d974921ab468.001.1","noaa_urn:oid:2.49.0.1.840.0.76ea4e8b79d99b16681be5332793fcd0d2ea727a.001.1","noaa_urn:oid:2.49.0.1.840.0.8aeb5d57f7d9812cf315114345fdea489f207958.001.1","noaa_urn:oid:2.49.0.1.840.0.bd70c8f0aa21c4da5987e62ee612998f71c70727.001.1","noaa_urn:oid:2.49.0.1.840.0.6a0f8faf3ba9cf381ad4c83c2eabcfc533f3714b.001.1","noaa_urn:oid:2.49.0.1.840.0.804b9ecfc367aeda352990ffc859626487c33185.002.1","noaa_urn:oid:2.49.0.1.840.0.f87c8de102ee328772272f42252b1061af9d1ce3.001.1"] |
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.