Right now
The most recent data we hold from NOAA arrived 10 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 21 June 2026 at 21:30 UTC. It is kept here as a record.
No stronger detection stands among the 45 recorded within 20 km of this point since 15 March 2026 — 24 others scored the same. Another comparable one was recorded here earlier the same day. 17 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 21 at 2:51PM MDT until June 21 at 3:30PM MDT by NWS Goodland KS
How we know
5 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 | 0.70/1 |
| Coordinates | 40.1064, -102.1761 |
| Nearest City | North Platte (164 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-21T20:51:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a1f7a47e7cd08fb10b645a476d301a75 |
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: 2026-06-21T20:51:00.000Z.
First archived: 2026-06-21T20:54:12.199Z. 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 | Yuma, CO; Keith, NE; Washington, CO and 5 more areas |
| Headline | Severe Thunderstorm Warning issued June 21 at 2:51PM MDT until June 21 at 3:30PM MDT by NWS Goodland KS |
| Expires | 2026-06-21T15:30:00-06:00 |
| SenderName | NWS Goodland KS |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a1f7a47e7cd08fb10b645a476d301a75c7ebcf0d.001.1","noaa_urn:oid:2.49.0.1.840.0.6eb940a4fc24adeeab745e1c6486f654e875f6d7.002.1","noaa_urn:oid:2.49.0.1.840.0.5ec37ae3fb2fbb99f3e328259b79c00cbd49fd4b.001.1","noaa_urn:oid:2.49.0.1.840.0.e26530f26f065231cd2ac2675fd81792c4b782fc.001.1","noaa_urn:oid:2.49.0.1.840.0.d9117c3485b76354ff1b68a44b1998f436e40d4e.001.1","noaa_urn:oid:2.49.0.1.840.0.efe35ba63b339a91e6b653511afa444d5618d9fa.001.1","noaa_urn:oid:2.49.0.1.840.0.c9c7dcd2d08a594fb226d21315bbf0ca2db9afb4.001.1","noaa_urn:oid:2.49.0.1.840.0.15e5c38d2e0a8dbf530144d829def631cd22dde4.001.1","noaa_urn:oid:2.49.0.1.840.0.c68e2dc27533060f0f0bd74bc2bb7e2383675863.001.1","noaa_urn:oid:2.49.0.1.840.0.f8bb73cc322073c04729cc5d0c49fe97a5b69c7b.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.75 |
| Iem Unit | Inch |
| Iem City | 1 NNE Imperial |
| Iem County | Chase |
| Iem State | NE |
| Iem Wfo | LBF |
| Iem Remark | mPing Report. |
| MergedSources | [{"id":"iem_W_40.590_-102.060_1782070200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782070200000,"latitude":40.59,"longitude":-102.06},{"id":"iem_H_40.490_-101.530_1782072840000","source":"iem","severity":"low","severityValue":25,"timestamp":1782072840000,"latitude":40.49,"longitude":-101.53},{"id":"iem_H_40.320_-101.410_1782074580000","source":"iem","severity":"low","severityValue":25,"timestamp":1782074580000,"latitude":40.32,"longitude":-101.41},{"id":"iem_H_40.530_-101.630_1782072840000","source":"iem","severity":"low","severityValue":25,"timestamp":1782072840000,"latitude":40.53,"longitude":-101.63}] |
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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