This alert expired on 22 July 2026 at 06:30 UTC. It is kept here as a record.
No stronger detection stands among the 62 recorded within 20 km of this point since 13 March 2026 — 4 others scored the same. The last comparable one was on 2 July 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 22 at 12:02AM MDT until July 22 at 12:30AM MDT by NWS Denver CO
An estimated 398,035 people live within 50 km of this point.
Nearby, since 13 March 2026
- August 27, 2026 · score 43 · 9.7 km
- March 13, 2026 · score 43 · 17.1 km
- June 25, 2026 · score 43 · 18.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 81 % 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 40.7020, -104.9560 |
| Nearest City | Fort Collins (16 km) |
| Population Exposed | 398.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-22T06:02:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8c0b7cf366c02e7231fc24b1bc8b43b941d1d3fc.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Larimer, CO; Weld, CO |
| Headline | Severe Thunderstorm Warning issued July 22 at 12:02AM MDT until July 22 at 12:30AM MDT by NWS Denver CO |
| Expires | 2026-07-22T00:30:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
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 near Fort Collins?
Calamity.live data shows a weather event with CalamityScore 43/100, near Fort Collins (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.