This alert expired on 22 July 2026 at 22:45 UTC. It is kept here as a record.
It is the 5th strongest of the 105 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 6 July 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 22 at 4:13PM MDT until July 22 at 4:45PM MDT by NWS Denver CO
An estimated 2,416,430 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 26, 2026 · score 52 · 5.2 km
- July 22, 2026 · score 52 · 6.9 km
- June 3, 2026 · score 46 · 9.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 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) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 39.8078, -104.6767 |
| Nearest City | Aurora (16 km) |
| Population Exposed | 2.4M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-22T22:13:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.02468fc4da5cfef20b77f3df44d89bf89a648766.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Adams, CO; Central Arapahoe, CO; Denver, CO; Weld, CO |
| Headline | Severe Thunderstorm Warning issued July 22 at 4:13PM MDT until July 22 at 4:45PM MDT by NWS Denver CO |
| Expires | 2026-07-22T16:45:00-06:00 |
| 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 Aurora?
Calamity.live data shows a weather event with CalamityScore 52/100, near Aurora (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.