This alert expired on 16 May 2026 at 23:15 UTC. It is kept here as a record.
It is the 6th strongest of the 45 detections recorded within 20 km of this point since 27 April 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 16 at 4:42PM MDT until May 16 at 5:15PM MDT by NWS Denver CO
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 69 % 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 | 69% |
| Coordinates | 40.5630, -100.6134 |
| Nearest City | North Platte (63 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-16T22:42:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.353c22766348b3b5730e2a3fe1a1eae4 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Phillips, CO; Kit Carson, CO; Yuma, CO; Lincoln, NE; Perkins, NE and 13 more areas |
| Headline | Severe Thunderstorm Warning issued May 16 at 4:42PM MDT until May 16 at 5:15PM MDT by NWS Denver CO |
| Expires | 2026-05-16T17:15:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 18 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.353c22766348b3b5730e2a3fe1a1eae4a9d6eaf4.001.1","noaa_urn:oid:2.49.0.1.840.0.9e0420e73cb7ebaf8c274c0aa73cd9bd5fbb8b51.001.1","noaa_urn:oid:2.49.0.1.840.0.0682cd8840f5c4eb201585c8af8a3635d4e50c7b.001.1","noaa_urn:oid:2.49.0.1.840.0.d41cb65607d74c61cf5892788917995f7b262c03.001.1","noaa_urn:oid:2.49.0.1.840.0.cad78ca0d80e2caa5f6451fff274c5e4032a6578.001.1","noaa_urn:oid:2.49.0.1.840.0.14a19f4b78f8e743bbe29234478a16fbfc46fb9f.001.1","noaa_urn:oid:2.49.0.1.840.0.e5b952a39939d68a3db25ca5d28ea013156d2668.001.1","noaa_urn:oid:2.49.0.1.840.0.ee72c53d9ba364ceb6d2c97cb3b05ea3294d875b.001.1","noaa_urn:oid:2.49.0.1.840.0.4d942283337a88ee5df84c93738973a109dfaf3f.002.1","noaa_urn:oid:2.49.0.1.840.0.c3b283c2f60c9eed09c8922f17b722f28fafd4d3.001.1","noaa_urn:oid:2.49.0.1.840.0.e340907877fbff856bdf44a5a8deadd7612f298f.001.1","noaa_urn:oid:2.49.0.1.840.0.0a46e42022623779690609d72b4e051f115748c7.001.1","noaa_urn:oid:2.49.0.1.840.0.0780e6c453b8efcc7911dae716dcb168db835729.001.1","noaa_urn:oid:2.49.0.1.840.0.64199a4af0ea687caaab646f8f802528de03aca0.002.1","noaa_urn:oid:2.49.0.1.840.0.68cbf5e30c9397fab0516008ee2e6fa89f3e10ad.001.1","noaa_urn:oid:2.49.0.1.840.0.8694baef88d5b8f535e143aef2dc464883dbb1d6.001.1","noaa_urn:oid:2.49.0.1.840.0.ab2ffe29c8e5b6acd6469340be88a4e5689a5ab5.001.1","noaa_urn:oid:2.49.0.1.840.0.a0880329d3d401a5d934402dc3e3e56ccf6dfad6.002.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | North Platte |
| Iem County | Lincoln |
| Iem State | NE |
| Iem Wfo | LBF |
| MergedSources | [{"id":"iem_H_40.830_-100.830_1778967540000","source":"iem","severity":"low","severityValue":25,"timestamp":1778967540000,"latitude":40.83,"longitude":-100.83},{"id":"iem_H_40.800_-100.810_1778966460000","source":"iem","severity":"low","severityValue":25,"timestamp":1778966460000,"latitude":40.8,"longitude":-100.81},{"id":"iem_H_41.140_-100.770_1778968320000","source":"iem","severity":"low","severityValue":25,"timestamp":1778968320000,"latitude":41.14,"longitude":-100.77}] |
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.