This alert expired on 9 July 2026 at 22:30 UTC. It is kept here as a record.
No stronger detection stands among the 46 recorded within 20 km of this point since 15 March 2026 — 14 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 9 at 4:20PM MDT until July 9 at 4:30PM MDT by NWS Denver CO
An estimated 533,378 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 31, 2026 · score 48 · 2.9 km
- June 23, 2026 · score 48 · 8.9 km
- June 25, 2026 · score 48 · 10.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 80% |
| Coordinates | 39.0126, -104.4924 |
| Nearest City | Cimarron Hills (25 km) |
| Population Exposed | 533.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-09T22:20:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.77c5242b7fe2087906411cf9f8295094 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Adams, CO; Western Arapahoe, CO; Denver, CO; Weld, CO; Pueblo, CO |
| Headline | Severe Thunderstorm Warning issued July 9 at 4:20PM MDT until July 9 at 4:30PM MDT by NWS Denver CO |
| Expires | 2026-07-09T16:30:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.77c5242b7fe2087906411cf9f8295094de740137.001.1","noaa_urn:oid:2.49.0.1.840.0.ea0e5a5c1a3f986eedc66cdcf6b535919855a255.001.1"] |
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 10 February 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 Cimarron Hills?
Calamity.live data shows a weather event with CalamityScore 48/100, near Cimarron Hills (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.