This alert expired on 2 July 2026 at 07:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 67 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 2 at 12:30AM MDT until July 2 at 1:00AM MDT by NWS Denver CO
An estimated 511,543 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 29, 2026 · score 54 · 11.7 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.
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) | 48 / 100 |
| Our confidence | 80% |
| Coordinates | 40.4455, -104.8150 |
| Nearest City | Windsor (8 km) |
| Population Exposed | 511.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-02T06:30:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f0b3be4bf116ebd173fc3ffaf4be23f4 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Weld, CO |
| Headline | Severe Thunderstorm Warning issued July 2 at 12:30AM MDT until July 2 at 1:00AM MDT by NWS Denver CO |
| Expires | 2026-07-02T01:00:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f0b3be4bf116ebd173fc3ffaf4be23f4d9f58245.001.1","noaa_urn:oid:2.49.0.1.840.0.014c1305abd431f266ed471301b7b15861e7768a.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.
Want to know when something happens near Windsor?
Calamity.live data shows a weather event with CalamityScore 48/100, near Windsor (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.