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 23:51 UTC. It is kept here as a record.
It is the 26th strongest of the 37 detections recorded within 20 km of this point since 26 March 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 30 at 5:41PM MDT until May 30 at 5:45PM 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 16 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 16 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 40.4525, -101.0790 |
| Nearest City | North Platte (79 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-30T23:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.6141e325e8a511cdc78ad64feddf8217 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-05-30T23:41:00.000Z.
First archived: 2026-05-30T23:42:48.989Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Phillips, CO; Arthur, NE; Garden, NE; Grant, NE; Furnas, NE; Gosper, NE and 13 more areas |
| Headline | Severe Thunderstorm Warning issued May 30 at 5:41PM MDT until May 30 at 5:45PM MDT by NWS Denver CO |
| Expires | 2026-05-30T17:51:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 17 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6141e325e8a511cdc78ad64feddf8217172cf601.001.1","noaa_urn:oid:2.49.0.1.840.0.95db0ec073b8eb5aa588f8dfe74bbb5b289703d2.001.1","noaa_urn:oid:2.49.0.1.840.0.c08633b29de1a581f65901497c04afaa462ce3cf.001.1","noaa_urn:oid:2.49.0.1.840.0.878f206fd310ef9987ccb1bacc59f956ad1c5f1c.001.1","noaa_urn:oid:2.49.0.1.840.0.eecf6c8d603917e8bf8a18ab71e08a872ddd0df9.001.1","noaa_urn:oid:2.49.0.1.840.0.1d0fdf52120ef87276484e5913e8fbfc7fcd9abc.001.1","noaa_urn:oid:2.49.0.1.840.0.ae0b740d4c9bcf89ac2e080087bab3d1669ce470.001.1","noaa_urn:oid:2.49.0.1.840.0.2fb6e01e52e6fa5cbc4421624f6a1880833c7e3a.001.1","noaa_urn:oid:2.49.0.1.840.0.9dd21d1d95071303b3e5bcb6111046c2f1e3ae96.001.1","noaa_urn:oid:2.49.0.1.840.0.6322608a49986c730fb1a9e0634628e3768d0450.001.1","noaa_urn:oid:2.49.0.1.840.0.dd64a4c283de1c4ad9c1035819c7627f28b8e33b.001.1","noaa_urn:oid:2.49.0.1.840.0.e17bfb9110ea6149e2dab1a002fb9f1c18eee5c5.001.1","noaa_urn:oid:2.49.0.1.840.0.611673fd7dca4f312b3b200ceb40cfb743a3fc2e.001.1","noaa_urn:oid:2.49.0.1.840.0.b0c6187262c37f2c319a4db8eda8be18caaab5dd.001.1","noaa_urn:oid:2.49.0.1.840.0.7c07117bd0ebb38e13ef5208b0800e25b4ec4c8b.001.1","noaa_urn:oid:2.49.0.1.840.0.0f6501d6b8460b902d9806ce4383f846083a5560.002.1","noaa_urn:oid:2.49.0.1.840.0.1dc8fa7b36fe1122e96fb4fb2859bfd2282c337f.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.
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