Right now
The most recent data we hold from NOAA arrived 4 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 2 July 2026 at 07:15 UTC. It is kept here as a record.
No stronger detection stands among the 54 recorded within 20 km of this point since 15 March 2026 — 22 others scored the same. Another comparable one was recorded here earlier the same day. 14 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 2 at 12:43AM MDT until July 2 at 1:15AM MDT by NWS Denver CO
Urban PEI: 322,853 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- June 26, 2026 · score 43 · 10.5 km
- June 25, 2026 · score 43 · 23.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 43 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 40.5840, -104.5015 |
| Nearest City | Greeley (25 km) |
| Urban exposure index (PEI) | 322.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-02T06:43:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.8fbaee3772524008853f0796e67b70ea |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-02T06:43:00.000Z.
First archived: 2026-07-02T06:49:52.124Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Weld, CO |
| Headline | Severe Thunderstorm Warning issued July 2 at 12:43AM MDT until July 2 at 1:15AM MDT by NWS Denver CO |
| Expires | 2026-07-02T01:15:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8fbaee3772524008853f0796e67b70eab61de513.001.1","noaa_urn:oid:2.49.0.1.840.0.65447aca92be26fd1a575a8eb8d1efc088da2d01.001.1","noaa_urn:oid:2.49.0.1.840.0.e05491ad710d59d1fc82b93a59bd17432d347c82.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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