Right now
The most recent data we hold from NOAA arrived 61 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 25 June 2026 at 00:15 UTC. It is kept here as a record.
It is the 2nd strongest of the 61 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 24 June 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 24 at 6:06PM MDT until June 24 at 6:15PM MDT by NWS Denver CO
Urban PEI: 65,132 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- June 7, 2026 · score 39 · 8.6 km
- May 9, 2026 · score 39 · 11.5 km
- July 8, 2026 · score 39 · 13.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.78/1 |
| Coordinates | 41.2024, -104.3292 |
| Nearest City | Cheyenne (42 km) |
| Urban exposure index (PEI) | 65.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-25T00:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.353ece6134c4432eeeef495d8a8b6cd3 |
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: 2026-06-25T00:06:00.000Z.
First archived: 2026-06-25T00:08:13.919Z. 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 | Washington, CO; Keith, NE; Perkins, NE; Keith, NE and 5 more areas |
| Headline | Severe Thunderstorm Warning issued June 24 at 6:06PM MDT until June 24 at 6:15PM MDT by NWS Denver CO |
| Expires | 2026-06-24T18:15:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.353ece6134c4432eeeef495d8a8b6cd3e451194d.001.1","noaa_urn:oid:2.49.0.1.840.0.aa49baf7b82401a9d926e8d04512dec01235c3fa.001.1","noaa_urn:oid:2.49.0.1.840.0.f00989a09719dcc983d386a51f08975b02abd589.001.1","noaa_urn:oid:2.49.0.1.840.0.7ece2eafb5e59dd93fa2b133a2b65b30a72d60dd.001.1","noaa_urn:oid:2.49.0.1.840.0.565b841452c2112a088e3f8ade89587d53a3f587.001.1","noaa_urn:oid:2.49.0.1.840.0.2350e0356f69ec6cb5a3da08f9d19a38b8db7046.001.1","noaa_urn:oid:2.49.0.1.840.0.1c93ba5a6e2f9c2abbdcce20bffac39922d41761.001.1","noaa_urn:oid:2.49.0.1.840.0.cdd681c2ef9e5d5d24747a3925aa5dad9d5820d8.001.1","noaa_urn:oid:2.49.0.1.840.0.aee0998697920f0a57558b84259e4dc18f37a1b5.001.1","noaa_urn:oid:2.49.0.1.840.0.4a7b43c1f55622cbe5fac4cfa8c949adeec6ffba.001.1","noaa_urn:oid:2.49.0.1.840.0.0352db4ef95dc220f187d1b65634a1d333fc9ed4.001.1"] |
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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