Right now
The most recent data we hold from NOAA arrived 1 minute 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 1 June 2026 at 20:15 UTC. It is kept here as a record.
No stronger detection stands among the 102 recorded within 20 km of this point since 15 March 2026 — 17 others scored the same. The last comparable one was on 26 May 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 1 at 1:35PM MDT until June 1 at 2:15PM MDT by NWS Denver CO
An estimated 2,615,321 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 1, 2026 · score 52 · 8.2 km
- July 28, 2026 · score 52 · 12.8 km
- July 22, 2026 · score 52 · 15.1 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 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) | 52 / 100 |
| Our confidence | 80% |
| Coordinates | 39.9162, -104.8232 |
| Nearest City | Brighton (8 km) |
| Population Exposed | 2.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-01T19:35:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.3ca627cae2cfdc27b134043b501ec587 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Northeast Boulder, CO; Weld, CO; Douglas, CO; Elbert, CO; Western Arapahoe, CO; Denver, CO; Douglas, CO and 3 more areas |
| Headline | Severe Thunderstorm Warning issued June 1 at 1:35PM MDT until June 1 at 2:15PM MDT by NWS Denver CO |
| Expires | 2026-06-01T14:15:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3ca627cae2cfdc27b134043b501ec587f22c0d30.001.1","noaa_urn:oid:2.49.0.1.840.0.aefcfc19e976e4eb5b2c495c8306ed84c176b6af.001.1","noaa_urn:oid:2.49.0.1.840.0.df8eaa99f995f5cf822298a49e457a3f0a85a4a7.001.1","noaa_urn:oid:2.49.0.1.840.0.daf8c038be9a9919ce75c1498ef28d698e72d093.001.1","noaa_urn:oid:2.49.0.1.840.0.9cecbcea4172b03dfbbed6b9938c290b6c2799f4.001.1","noaa_urn:oid:2.49.0.1.840.0.e8fa97bcaec7ffb34b088a224c38a9a35f9d1bd0.001.1"] |
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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