This alert expired on 1 July 2026 at 02:45 UTC. It is kept here as a record.
No stronger detection stands among the 70 recorded within 20 km of this point since 5 May 2026 — 17 others scored the same. Another comparable one was recorded here earlier the same day. 25 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 30 at 8:22PM MDT until June 30 at 8:45PM MDT by NWS Denver CO
Nearby, since 5 May 2026
- August 10, 2026 · score 22 · 3.7 km
- June 24, 2026 · score 46 · 10.5 km
- August 10, 2026 · score 22 · 12.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 59 % 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 | Critical |
| Calamity Score (ours) | 46 / 100 |
| Our confidence | 59% |
| Coordinates | 40.8850, -102.8290 |
| Nearest City | Evans (167 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-01T02:22:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.73ed1dd543d8e9dfa1e2be989ea6e66f |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Logan, CO; Sedgwick, CO; Logan, CO |
| Headline | Tornado Warning issued June 30 at 8:22PM MDT until June 30 at 8:45PM MDT by NWS Denver CO |
| Expires | 2026-06-30T20:45:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.73ed1dd543d8e9dfa1e2be989ea6e66fda10a485.001.1","noaa_urn:oid:2.49.0.1.840.0.0d0df7571e459666b2e15fa44c5cd05e6eb81c08.001.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.