Right now
The most recent data we hold from NOAA arrived 4 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 16 May 2026 at 22:30 UTC. It is kept here as a record.
It is the 7th strongest of the 49 detections recorded within 20 km of this point since 15 March 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 16 at 4:20PM MDT until May 16 at 4:30PM MDT by NWS Denver CO
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.68/1 |
| Coordinates | 40.4429, -100.9263 |
| Nearest City | North Platte (76 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-16T22:20:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.3f47de4db9dcb3c7dfda7ef2c030bbcc |
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: 2026-05-16T22:20:00.000Z.
First archived: 2026-05-16T22:23:12.224Z. 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 | Lincoln, CO; Kit Carson, CO; Yuma, CO; Cheyenne, KS; Sherman, KS; Lincoln, NE and 8 more areas |
| Headline | Severe Thunderstorm Warning issued May 16 at 4:20PM MDT until May 16 at 4:30PM MDT by NWS Denver CO |
| Expires | 2026-05-16T16:30:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3f47de4db9dcb3c7dfda7ef2c030bbcc6e82aca9.001.1","noaa_urn:oid:2.49.0.1.840.0.f7d764df8e38ce4ab04e85023d72c64976f75641.001.1","noaa_urn:oid:2.49.0.1.840.0.68cbf5e30c9397fab0516008ee2e6fa89f3e10ad.001.1","noaa_urn:oid:2.49.0.1.840.0.7a23b91f3a52c06940a93ffdd6e5a520e82c3dc8.001.1","noaa_urn:oid:2.49.0.1.840.0.878474470902afb5a74a83e3d8c4c9bfb9e9ed13.001.1","noaa_urn:oid:2.49.0.1.840.0.112f8064207c793c2bd57f3c2d5572aeffaa4c8b.001.1","noaa_urn:oid:2.49.0.1.840.0.bd90f4107a27facd189acec1652e97a021100c4c.001.1","noaa_urn:oid:2.49.0.1.840.0.e23d9e3b2ae84acfbac119fda91c9d95d97c1f73.001.1","noaa_urn:oid:2.49.0.1.840.0.28a0fcdda9b41c3ee42f0ad060da60ebc6b6c7d4.001.1","noaa_urn:oid:2.49.0.1.840.0.69f9b2d0a9b29472efd80933f5ad0a5337e46aba.001.1","noaa_urn:oid:2.49.0.1.840.0.ee39091deae471b3afb402b68daf1a4ce1201706.002.1","noaa_urn:oid:2.49.0.1.840.0.ce14bedbde5bc86b634e2ab08d7e870c24faeebf.001.1","noaa_urn:oid:2.49.0.1.840.0.ea8c6f5c9345fddbca9961fe8006820ae2635a3e.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.75 |
| Iem Unit | Inch |
| Iem City | 5 NW Wellfleet |
| 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}] |
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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