Right now
The most recent data we hold from NOAA arrived 9 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 3 June 2026 at 22:15 UTC. It is kept here as a record.
It is the 16th strongest of the 48 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 1 June 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 3 at 3:27PM MDT until June 3 at 4:15PM MDT by NWS Denver CO
An estimated 2,475,820 people live within 50 km of this point.
Nearby, since 15 March 2026
- August 27, 2026 · score 52 · 7.7 km
- June 1, 2026 · score 52 · 11.7 km
- June 3, 2026 · score 46 · 12.6 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 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) | 46 / 100 |
| Our confidence | 81% |
| Coordinates | 39.9988, -104.7207 |
| Nearest City | Brighton (9 km) |
| Population Exposed | 2.5M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-03T21:27:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.876a83f29edef51093084c03e1e8d4ba |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Adams, CO; Weld, CO; Western Arapahoe, CO; Douglas, CO; Elbert, CO; Weld, CO |
| Headline | Severe Thunderstorm Warning issued June 3 at 3:27PM MDT until June 3 at 4:15PM MDT by NWS Denver CO |
| Expires | 2026-06-03T16:15:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.876a83f29edef51093084c03e1e8d4ba1f577cd7.001.1","noaa_urn:oid:2.49.0.1.840.0.f13f2979450efb568cffed093cb0d7ae48da86b1.001.1","noaa_urn:oid:2.49.0.1.840.0.57f93116ab6f0030192c71cfce2b97c057927658.001.1"] |
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.
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